How to make a 45 degree angle. How to make the corner of the ceiling plinth with the help of a miter box and improvised means

How to cut at a 45 degree angle

Often during repairs, you may encounter a situation where you need to saw off a piece from a part, at an angle of strictly 45 degrees. Usually, this is necessary to connect two parts at a right angle, 90 degrees, such as: door trim, skirting boards, pieces of furniture and much more. An experienced craftsman who is professionally engaged in repair work can often do without special tools, and almost by eye is able to evenly and clearly cut the necessary part. But if you are a novice repairman, and you have a desire to do the job as efficiently as possible, without damaging expensive parts, then you just need to purchase a miter box - a special device that allows you to saw off the material at a given angle without any special tricks.

To work, you need to have: a miter box, a hacksaw, a protractor with a pencil, a wood blank, a screwdriver with screws or a clamp.

Using the finished miter box

The most common miter box is a U-shaped profile with slots on the sides that allow you to make cuts at angles of 45, 60 and 90 degrees, respectively, with a hacksaw. It is enough to use it once and you will no longer have the question of how to saw off at an angle of 45 degrees. There are miter boxes and more complex ones that allow you to independently set the angle necessary for cutting, as well as using a rotary structure, to set the hacksaw blade in the best position. The best option for a novice repairman would be to buy a ready-made tool in any hardware store. The miter box can be made of wood, plastic or metal. But it can also be made independently from improvised material, any boards or plywood, about 20 millimeters thick.

Self-made miter box

1. First you need to assemble the box of the future tool. To do this, it is necessary to drill holes in its side walls for future fastening with screws and, having smeared the ends of the parts with glue, connect them in such a way that both walls are strictly perpendicular to the bottom and parallel to each other, after which we fix them with screws.
2. Using a protractor, mark an angle of 45 degrees with a pencil, if necessary, add additional lines for the grooves. The most important part is the cuts, they are best done with the same hacksaw blade that you will cut the products with. It is necessary to saw while holding the blade, avoiding strong pressure on the tool, first we saw through one side, then the other.
3. Let's start processing the material. With a clamp or screws, we fix the miter box on the work surface. At the place of the future cut on the plinth or board, we make a mark. How to cut at an angle of 45 degrees becomes clear if you press it firmly against the side wall and align the mark with the slot on the template. We insert the hacksaw into the groove and cut the workpiece, while the work of the blade is limited to cuts, which allows you to make the cut as evenly and accurately as possible.
4. Before sawing the baseboard, you need to make sure that the corner of the room is really straight and, if this is not the case, you need to correct the angle of the saw cut of the workpiece. To do this, measure the inner corner of the wall joint, and divide the result by two. If you do not have a professional rotary miter box that can change the cutting angle by the required amount, then to achieve the result, you need to cut additional grooves at the desired angle in a homemade miter box. So you can cut the plinth for the most accurate alignment.

Now you know how to cut a workpiece at an angle of 45 degrees.

How to cut a ceiling plinth

Perhaps it's time to move from theory to practical actions. The mebeldok.com portal team is sure that everything will work out for you. Stay with us!

A miter box will help you cut the baseboard at an angle of 45 degrees. By the way, do you know how to use the miter box? The specialists of our portal have prepared a step-by-step guide for you.

How to cut the corners of a ceiling plinth without a miter box

How to cut a part or product at an angle of 45 degrees

Determining the slope of the roof - what depends
Calculation methodology
An example of calculating the roof slope in degrees
How to find out the angle of the roof
The choice of roofing depending on the slope of the roof

In order for the roof of a building to be able to fully perform all the functions assigned to it, it is necessary to take into account a number of parameters when creating it. One of the most important parameters of the roof is its slope, which ensures the removal of atmospheric precipitation from its surface and affects the ability to withstand external loads. How to calculate the slope of the roof, and will be discussed in this article.

Determining the slope of the roof - what depends

In order to correctly calculate the roof slope, several factors must be taken into account, among which the following stand out the most:

Wind loads. The slope of the slopes is very strongly influenced by the wind. In order for the roof to be able to normally resist its effects, you need to choose its angle correctly. At too large angles, the load on them will be high, but an excessive decrease in the angle can also be dangerous - a sloping roof can simply be torn off by a strong gust of wind.
Snow and rain loads. With snow, everything is quite simple - increasing the angle of inclination simplifies its convergence from the roof surface. With a roof slope of more than 45 degrees, snow will hardly linger on it. With rainfall, the situation is the same - if the angle of inclination of the roof is too low, then water can flow into the joints or even stagnate on the roof surface.

Based on these factors, you can calculate the angle of inclination of the slopes. In addition, before calculating the angle gable roof, you should pay attention to the recommended indicators: for areas with strong winds a slope of 15-20 degrees is suitable, and in other cases, the optimal slope is 35-40 degrees. Of course, you need to understand that the roof in each case is calculated individually, and it is simply undesirable to choose average indicators.

Calculation methodology

When designing a roof, it is imperative to carry out a number of calculations, among which there should always be a calculation of the angle of inclination of the slopes. This parameter directly affects the roof structure: with an increase in the slope, the snow load decreases, but the effect of the wind increases, so the truss system has to be further strengthened.

We cut the corners of the ceiling plinth: tools and cutting methods

For the arrangement of slopes at a large angle, more materials are also required, which negatively affects the cost of construction.

Before you know the degree of roof slope, you need to calculate the operational load on the roof, which requires two parameters:

The total mass of the roof structure;
Peak levels of snowfall typical of the region where the construction is taking place.

A simplified calculation algorithm is reduced to the following steps:

First you need to determine the weight of one square meter of roofing cake;
The resulting value is multiplied by the total area of the roof;
The mass of the roof is multiplied by a factor of 1.1.

An example of calculating the roof slope in degrees

To understand how to calculate the angle of the roof, it is worth considering the calculation process using a specific example. For example, the following data will be taken: the crate has a thickness of 2.5 cm, one square meter roofing weighs 15 kg, a 10 cm thick insulation is used as a heat-insulating material, a square meter of which has a weight of 10 kg, and ondulin with a weight of 3 kg per square meter is used for coating.

The calculation of the roof slope is carried out in accordance with the method described above. Substitution of the available data leads to the following expression: (15+10+3)x1.1 = 30.8 kg/sq.m. The resulting value is quite acceptable - the average load on the roof of residential buildings is slightly less than 50 kg / sq.m. In addition, the formula contains a coefficient of 1.1, which slightly increases the actual weight of the roof structure and allows you to replace the roofing with a heavier one in the future.

How to find out the angle of the roof

There is a direct relationship between the slope of the roof slopes and the snow load. If the angle of the roof is less than 25 degrees, then the snow load factor is 1, and at angles ranging from 25 to 60 degrees, then this factor increases to 1.25. A roof with a large angle of inclination will not be subject to snow loads at all, so they are not taken into account in the calculations.

To determine the angle of the roof, you need to use the Bradis table and a simple technique: the height of the roof structure is divided by the length of the gable, divided by two, after which it remains to find the angle in the table that corresponds to the result obtained.

The height of the roof in the ridge is determined as follows:

The first step is to calculate the width of the span;
The resulting value is divided by 2;
The result of the previous calculation is multiplied by a coefficient corresponding to a certain angle of inclination.

For example, the implementation of such a calculation method looks like this: with a building width of 8 meters and a 25-degree roof slope, the calculation coefficient is 0.47. As a result of substituting the values, an expression of the following form is obtained: 4x0.47 \u003d 1.88 m. The resulting value is the roof height corresponding to the available initial data.

The choice of roofing depending on the slope of the roof

On the market, roofing materials are present in a large assortment, so with a choice suitable option there won't be much of a problem. Roof coverings differ in characteristics and application possibilities, and all their parameters must be studied before measuring the roof angle - only in this case it will be possible to create a reliable and effective design.

When choosing a material for a roof, it is worth starting from the following recommendations:

If the angle of inclination of the rafters is from 2.5 to 10 degrees, then stone chips or gravel coatings are best suited. In the first case, the top layer of the coating has a thickness of 3-5 mm, and in the second - 10-15 mm.
With a slope of more than 10 degrees, the best option would be coarse-grained or rolled materials, supplemented with bituminous waterproofing.
For the arrangement of pitched roofs with an angle of inclination of not more than 20 degrees, corrugated board or sheet asbestos cement is usually used. All seams and joints between roofing materials must be sealed.
If the angle of inclination of the roof is in the range of 20-60 degrees, then it is most often covered with metal sheets. Joints of materials in this case must be sealed without fail.

Conclusion

Knowing how to find out the angle of the roof in degrees will greatly simplify the design process and allow you to create the most reliable structure that can well protect the building box from precipitation, wind and cold.

How to cut a ceiling plinth so that the corners are perfect

In the corners of the room, when installing a ceiling plinth, for example, from foam plastic, small inconsistencies can often occur that spoil the overall appearance of the room. This, of course, can and should be avoided. So, how to cut the plinth with your own hands exactly? The first assistant in this matter will be such a tool as a miter box. But buying one for a one-time repair is not always advisable. Although, if you decide to help all relatives and neighbors with repairs, and in the future also earn money on this, then you need this device.

An example of ideal angles

If you are still limited to one installation of the plinth at home, then it is not necessary to use such a carpentry tool. You can do without it. In order to consider all the ways to properly cut a ceiling plinth, we will find out what it consists of.

Composition and features of the material

To understand how to properly cut a plinth, you should understand its composition. This will help you choose the right tool and cutting technology.

Styrofoam. The price and strength of this material is the lowest. But since we are creating a decorative decoration of the ceiling, strength is not particularly required.
The ceiling plinth made of expanded polystyrene is denser. than regular foam. For cutting such material, the most common knife is used.

Tip: sharpen your knife well before use. This will eliminate the presence of torn edges at the incision sites.

How to cut a skirting board straight

Wood.
How to saw off an angle of 45 without a miter box

Here you have to apply more effort for processing. For wood, use only a hacksaw.

Tip: the smaller and more frequent the saw tooth, the smoother the edges will be. You can even use a sheet for metal.

Plastic. How to cut a plastic plinth? The same method as with a tree is suitable here - a saw, a hacksaw. Alternatively, you can also use a grinder.

Using a regular hacksaw blade

Cutting methods

The product is installed around the perimeter of a rectangular room. Trimmed to finish right angles. Therefore, we will consider how to cut the baseboard 45 degrees.

Cutting with a miter box

What is a stool? This is a special tray made of wood, aluminum or plastic with grooves provided to guide the saw at the desired angle.

Here is a brief instruction on how to use such a carpentry tool:

Training. We take the product and put it in the tray. Align to the position in which it will be installed on the ceiling.
Cutting. With the other hand, insert the cutting tool into the groove. It can be a knife or a hacksaw. And boldly cut. The device will not let you miss the intended place.

You should know: a metal blade is also suitable for cutting foam.

Treatment. A wooden skirting board may need to be further filed to even out the cut edges. Plastic or foam plastic can be touched up with a knife, the main thing is that it is sharp enough.

Tip: when cutting, do not put pressure on the product. Styrofoam can crumble, and wood can even split.

That's so easy and simple to use miter box

Cutting without a miter box

If you do not have such a device, and you are not going to purchase it for one-time use, then you can use the following methods to cut the baseboard at 45 degrees.

The first way is to make this simple carpentry tool yourself. To do this, knock down the most common tray made of wood. Then we measure the lines of the slots using a protractor or a school square. We cut the grooves and we have a primitive fixture ready.

The second way. how to cut a skirting board at an angle is even simpler. It is especially painless to use it in cases where the corners of the room are not even.

We don't need a tray. Enough of two boards knocked down at 90 degrees and a cardboard stencil with a line drawn for orientation.

The third way. In this case, we do not knock anything down at all, but simply use a table attached to the wall or any other similar structure.

We mark future joints directly on the product itself, on the wall and on the ceiling. We apply the plinth as we are going to mount it, and cut it according to the marks.

The simplest way without the use of special tools

Keep in mind that while cutting, hold the tool strictly vertically to obtain a right angle.

Features of cutting various angles

We have analyzed the general technology of how to cut ceiling skirting boards. But it also has some nuances in cutting different angles of this product.

Internal floor

View of the inner corner

First, let's set the left and right plinths at a right angle. We insert the left product into the miter box, applying to the outside, cut off the left inner corner. Then we do a similar operation with the right. Ready.

External floor

View of the external floor corner

In this case, using the miter box, we are not in the mode of the inner, but the outer edges. The rest of the operation is similar.

External ceiling

View of the outer ceiling corner

We already cut the ceiling corners into inside fixtures. Having inserted the left plinth into the miter box, we cut off the left outer corner. We substitute the right - the mode is the right outer edge.

Internal ceiling

View of the inner ceiling corner

By analogy with the outer corner, we cut off the inner one. We only cut the inner left and right edges, respectively.

It is important to remember: the product is always attached to the ceiling upside down. Therefore, insert it upside down into the miter box. This will help you cut the skirting correctly.

Install the skirting board only when you have already prepared the next one. Do it better on the floor, not under the ceiling.
Patience, patience and more patience. Joints sometimes have to be corrected more than once. Do not be nervous, be careful, and everything will work out.
With the use of foam and plastic, you can afford to leave small gaps at the joints of the corners. The putty hides them well. Be careful with the tree.

Results

Effort pays off

If you still have some questions, then the visual in this article will help to resolve them.

By carefully following the recommendations and taking into account the characteristics of the material you are working with, you can give your ceiling beauty and originality. Choose the way you like and go! You will succeed (read also about the benefits of PVC plinth).

In the interior, many varieties of platbands are used. They differ in the material from which they are made, in their shape, color and quality. Usually, either wooden or plastic trim is used to frame doors or windows.

According to their shape, platbands can be divided:

Flat - have a simple, uncomplicated look, and they are most often used.

Rounded - the frontal part of the frame has a rounded appearance.

Figured - can combine various forms. They look very unusual and quite attractive.

The material from which the straps are made can be very diverse:

Wood is the most common material, as it is environmentally friendly and not expensive.
Plastic - made in any color and shape. The most durable material and fairly easy to install.
Metal - allows you to experiment with the most unusual patterns, create various shapes.

The frame is also classified according to the type of thread.

Welt - the pattern is made through the entire area of \u200b\u200bthe bar.
Consignment note - the finished pattern is nailed or glued to the finished background.

According to the method of mounting the platband, there are only two types.

Overhead - mounted on the doorway.
Telescopic - they have spouts that are inserted into the holes of the door frame during installation.

How to cut a platband with a miter box

To work, you will need the following tools:

Miter box;
Hacksaw;
Workbench.

A miter box is a tool that allows you to cut a product at any angle. It looks like a tray that is made of wood or an alloy of metals, but most often it is made of plastic. On the construction market, you can find a simplified version of it, it will be needed for cutting at an angle of 45 degrees, but there are more complex designs, they are designed for cutting at an angle of 90 degrees.

In such work, it is also important what kind of cutting tool to use. Depending on what material the frame is made of, you need to choose a specific tool so as not to damage the product. For example, a hacksaw is suitable for cutting a metal bar, it is also suitable for a plastic frame. And for wooden product you need to use a hacksaw for wood. The accuracy of the cut and the quality of the work done depend on whether the correct tool is used when cutting.

The workbench will facilitate the work in terms of the fact that everything necessary tools will be at hand.

In order for the bar to be cut correctly, you need to follow the step-by-step instructions with accuracy.

Step 1. The frame must be leaned against the doorway and the required length marked, and then cut off the excess part.

Step 2. We install the bar in the miter box in a position in which it will be attached to doorway. It must be pressed against the far side of the tool.

Step 3. At an angle of 45 degrees, cut off the bar.

Step 4. By the same principle, we set the second striker to the far side of the tool and its mode.

For the accuracy of the work done, before fastening, we join the two parts of the platbands, and if there are no gaps between them, you can proceed with their installation.

For a complete presentation of such work, you can watch the video.

How to cut trim on your own without the help of a miter box

If it is not possible to use the miter box, then you can make it yourself or do without it at all.

To properly cut the frame without the use of a special tool, you can use the usual markings on the wall and at the same time get a good result.

For work you will need:

Pencil;
Roulette;
Ruler;
Hacksaw.

To complete the work you need to follow the step-by-step instructions.

Step 1. We fit the bar to the wall where it will be attached, and draw a small line along it.

Step 2. Now, in the same way, you need to draw a line by attaching a second casing to the place where the corner should be.

Step 3 When everything is drawn, you should get a markup on the wall that looks like two crossed lines. The point where these lines intersect must be transferred alternately to two strips.

Step 4. The mark transferred to the frame will be the cut line, for this, draw a line from the mark to the other end and cut it off.

Step 5. We apply two parts of the plank to the wall in order to correct the angle, if suddenly there was a mismatch.

To cut off a corner using a homemade miter box, it is quite possible to draw it on cardboard, a board, or on a regular sheet of paper. To do this, you need to draw the angles with a protractor at the desired degree. enjoy this homemade tool in the same way as the purchased one, namely, we set the platband parallel to the line with the desired degree and cut it off.

The main advantage of such a drawn tool is that you can draw an angle at absolutely any angle.

How to attach platbands yourself

When the corners of the platbands are cut, you can mount them to the wall. It is recommended to do this with decorative nails with small heads, and not with glue, since the glue is not durable. And if the frame needs to be replaced or removed for painting, it is much easier to do this with nails, and if the bar was attached to glue, then it can be easily damaged when removed.

There are only four ways to attach such a frame:

Finishing nails
Liquid nails.
Self-tapping screws.
Use of platbands on latches.

Installation with finishing nails is the most common method. In the work it is recommended to use nails 4 centimeters in length and no more than 1.5 millimeters in diameter. Holes are drilled at a distance of 5 - 7 centimeters, after which nails are hammered into them, but not completely. Now you should remove the nail heads with the help of side cutters and mask with a wax pencil of the same color as the plank itself.

If the surface of the wall to which the frame will be attached is completely flat, and the planks are made of MDF material, then the method of fastening to liquid nails is suitable. To do this, it is necessary to apply such nails to the wrong side of the plank and attach it to the wall, holding it in this state for some time. After that, fix the frame with tape. This method is quite simple and its main advantage is that the front part will not be subjected to mechanical stress. But it will take a lot of effort to remove it.

Advice! Attach the casing to the wall first and mark its outer side. After that, the casing can be removed, and masking tape can be glued along the contour - it will easily peel off without leaving marks, even from the most capricious surfaces, but if liquid nails come out somewhere, you don’t have to wipe the glue off the wall. It will be enough just to peel off the tape.

To attach the casing with self-tapping screws, it is necessary to make not very deep, but wide enough holes in it. This will be needed so that the caps of the screws are not higher than the frame itself. To decorate the screws, you can purchase special caps on them of the same color as the bar itself. It is recommended to use self-tapping screws 2 centimeters in length and no more.

The door frame on the latches looks like the letter "G". It is very easy to attach which is a plus. Its "beak" moves into the hole and snaps into place. The downside of this method of fastening is that it is not so easy to remove it, and when re-attached, the casing can delaminate, and subsequently will not look beautiful.

All of the four proposed options for fixing the frame are not difficult, you just need to choose the one that is right for the interior of the room.

There are more than enough tips on how to cut a plinth at 45 degrees on the net, the only bad thing is that most of them are given by people who have never done this. Next, from the point of view of practice, I will tell you how to cut skirting boards at the corners with your own hands in 3 options, and you will learn about both traditional methods and folk universal recipes.

The science of how to properly cut ceiling moldings in corners is not as complicated as it might seem.

A few words about tools and materials

Floor skirting boards are now made of wood or polyvinyl chloride (PVC), in other words, plastic. Ceiling fillets have a slightly longer list:

The range of ceiling plinths is much wider than that of the floor direction.

Polyurethane - these skirting boards have good elasticity and can go around radial and other curved surfaces, but in any case they need to be cut at clear angles;
Styrofoam - the simplest budget option, the price of foam plinths is low and they are cut very easily;
PVC - the principle is the same as for floor skirting boards, but the model range is much wider;
Wooden - similar to the floor, only there are still wide models;
Gypsum - with the advent of polyurethane and foam, gypsum ceiling fillets faded into the background, firstly, they are heavy, and secondly, fragile. But in fairness, it's worth mentioning them.

Since it is impossible to properly cut the ceiling plinth and its floor counterpart without a good tool, we will dwell on this issue in a little more detail.

The best, almost ideal tool for trimming any skirting boards and not only is Miter saw with turntable. The high-speed disc makes smooth and precise cuts, and the bed in these units rotates to any angle. The only problem is the serious cost of this tool.

A miter saw is almost the perfect tool for cutting skirting boards and more.

Considered to be one of the best hand tools for an accurate cut of small bars - this is a back saw. In principle, this is true, but I’ll tell you honestly, a really high-quality saw, even with the current assortment, is not easy to find. If you still decide to buy such a tool, then take a saw with a fine tooth.

Theoretically, foam and polyurethane can be cut with any sharp and durable knife. But at the same time, you need to have a steady hand and at least a little experience in cutting foam. Plus, cutting wide fillets with a knife is very problematic.

Without experience, making a clear cut with a knife is very problematic.

Personally, in the absence of trimming, I use only a hacksaw for metal. It is suitable for cutting absolutely any material, from foam to wood. By the way, the question is often asked how to cut a plastic plinth for the floor, and so - take a hacksaw for metal and you definitely can’t go wrong.

For cutting skirting boards, a hacksaw is considered one of the best tools.

Three ways to cut skirting boards

For floor and ceiling plinths, the cutting instructions are almost the same. But if on the floor a curved corner can be covered with something, then on the ceiling this is already a problem, so we will pay more attention to how to cut ceiling skirting boards.

Method number 1. Classic miter box

The classic miter box is a U-shaped bed with slots in the opposite sides. A part of a suitable size is inserted into this bed and sawn off with a hacksaw through the slots in the sides. The idea is not new, the tool is already several hundred years old, but, despite the simplicity, not everyone knows how to properly cut the corner of the ceiling plinth using such a miter box.

Not everyone knows how to cut a ceiling plinth in a corner using a classic miter box.

Tip: when trimming, ceiling plinths are applied to the side of the miter box that is closer to you, and floor plinths, on the contrary, must be applied to the side of the tool farthest from you. This is not a dogma, but it is much easier to work this way.

It is easier to work with floor plinths, since the miter box lies on a horizontal plane, it is easier for you to navigate in the position of the plinth. People most often make mistakes when trimming a ceiling fillet; they are simply incorrectly put into the tool. There is a simple but important rule here.

Important: the side of the ceiling fillet, which touches the wall, should be directed to the upper edge of the side of the miter box, and that part of the plinth that borders the ceiling is placed on the bottom of the miter box.

The corner, as you know, has 2 sides, and so, in order to make less mistakes, accustom yourself to putting the bar that will be mounted on the right side of the corner into the miter box on the right, and put the bar that is attached to the left into the miter box on the left. Details about the intricacies of using a classic miter box are described in the video in this article.

In addition to the classic U-shaped miter box, there are two more types of similar structures - this is a professional and rotary tool. As for the professional version, only masters use it. The device is quite bulky, but it rotates at any angle and has a hacksaw that can be fixed in the desired position.

Professional miter box with the ability to fix a hacksaw and parts.

The swivel device can be safely called a "pocket" miter box. Of the advantages here, only the possibility of a clear fixation of the angle of rotation of the bar. On the one hand, it’s easy for them to work - I set the corner, attached it to the plinth and cut it off. But on the other hand, you need to get used to such a tool, if you do not have experience with a hacksaw, then you should not take a rotary miter box.

Tip: when choosing a classic U-shaped miter box, first of all, do not take Chinese products. And secondly, try to buy models with the ability to rigidly fix the part inside, one of these models is shown in the photo below.

A miter box with the ability to fix the part inside is much more convenient to work with.

Method number 2. Trimming according to the template

Most often, both ceiling and floor skirting boards need to be cut at 45º. If there is no specialized tool nearby, then an impromptu miter box can be drawn on a notebook sheet. From the school geometry course, we know that the diagonal of any square with respect to the base has an angle of inclination of 45º.

Next, you need to draw a square and draw 2 diagonals in it - these will be the desired 45º. You just have to correctly attach the plinth to the leaf and mark. True, in order to cut the plinth evenly without guides, you need a good eye and a faithful hand.

Method number 3. Applied universal

A 45º cut is a common option, but what if you need a different angle and only have a hacksaw and a pencil? It turns out that there is a very simple way out of this situation. A plus, this method is universal, it is suitable for both external and internal corners.

Moreover, I can assure you that those angles that visually appear to be straight, in fact, have deviations of a couple of degrees. As a result, you buy good tool, cut off clearly 45º, and when docking, the gap between the baseboards “crawls out”. Here this problem disappears. And then, using an example, we will consider how to cut the ceiling plinth in the inner corner.

Illustrations	Recommendations
	Stage 1. Take a fillet, apply it on one side of the corner and use it to draw 2 lines, along the wall and along the ceiling. Tip: to make the lines inconspicuous, they can be drawn not with a pencil, but, for example, with a nail or a knife edge.
	Stage 2. Do the same on the adjacent side of the corner.
	Stage 3. If you draw a diagonal from the intersection of the lines on the ceiling to the inner corner, then you will get the desired cutting line.
	Stage 4. Then take the tool and cut according to the finished markup. If you normally own a hacksaw, then the skirting boards should converge perfectly.
	. As I already mentioned, exactly the same technology can be used to trim the outer corner.

Important nuances

If you tried as best you could, but a small gap at the junction nevertheless “crawled out”, do not be discouraged. In wooden fillets, such a gap is easily smeared with furniture wax. To cover the gap on the baseboards made of polyurethane, foam, plastic or gypsum, putty is perfect. Naturally, the color of the composition must match the color of the baseboard.

All cracks in the area of \u200b\u200bceiling fillets are sealed with putty.

Wide ceiling fillets are certainly beautiful, but they can only be mounted on perfectly flat walls. If the plane of the wall in relation to the ceiling is a wave, then it is better to buy narrow polyurethane fillets, they are elastic and will smooth out this drawback.

Most of the questions arise about how to cut the wallpaper under the ceiling plinth. There is nothing complicated here: the wallpaper is glued with a slight overlap on the plinth, and when the wall is completely glued, take a large spatula, put it in a corner and cut off the excess with a knife.

But keep in mind - neither a knife nor a spatula can be torn off the wall until you have passed the entire plane. That is, they put a spatula from the corner, cut off the wallpaper along the length of the blade, and then without lifting the blade from the wall, move and cut until you reach the next corner.

Conclusion

All three methods I have described work, the choice depends on what tool you have available and what your professional skills are. If after watching the video you still have questions, welcome to the comments, I will help as much as I can.

If you are not confident in your abilities, then for both floor and ceiling plinths there are docking elements that allow you to do without trimming.

This tool is a profile in the form of an inverted letter P. On the sides there are slots in it for sawing at an angle of 45, 60 and 90 degrees. More complex corner templates or miter boxes have devices for setting different sawing angles.

For the inexperienced master the best option will be the purchase of a finished miter box in a hardware store. At home, it can be made from three planed boards or plywood.

The tool can be assembled by fastening together pre-prepared parts. The corner template box must be secured with wood glue or screws. The side walls of the miter box must be strictly parallel to one another. The horizontal bar must create a strict perpendicular with the side ones.

Step 3: Mark cuts at different angles for sawing laminate, architraves, etc.

The application of slots will affect the accuracy of the work performed in the future. Therefore, this process must be approached with particular diligence. It is desirable to make cuts using the same hacksaw with which the work will be performed.

Step 4: Preparing the material to be cut at a 45 degree angle

It is necessary to fix the finished corner template on the desktop with a clamp. Next, mark the future cut on the workpiece. Next, you need to combine the workpiece with a 45-degree slot inside the miter box and press firmly.

The hacksaw must be inserted into the corresponding grooves of the corner template and the workpiece must be cut. The grooves will limit the movement of the saw and the cut will be carried out in the right direction.

The subtleties of working with a miter box and various materials

When sawing elements such as baseboards, it is not always worth making a 90-degree cut. After all, the walls in the room can be uneven. Before sawing the skirting board, it is necessary to correct the cutting angle.

Thus, the article described and characterized the process of sawing wooden materials using a miter box.

A ceiling plinth is a product that looks no different from its counterpart for flooring. It is also called a fillet. This detail serves to mask the joints of the wall and ceiling. It is installed at the very end of the finishing work, since the element does not carry any functional load, but only plays a decorative role. The installation process of the product is quite simple, but many are faced with the dilemma of how to make the corner of the ceiling plinth. Depending on the selected materials and tools that are available, the corners of the fillet are cut in different ways.

Creating fillet corners

To connect two planks, you can use decorative corners for ceiling plinths. But in the absence of such, the material will have to be processed. Next, we will talk about how to properly cut a corner on a ceiling plinth.

How to use the treatment chair

A miter box is one of the simplest carpentry tools, with which they cut various products at different angles. Usually it is a plastic, metal or wooden tray with several slots in the walls. The simple version only has slots for 45 and 90 degree angles. In more complex ones, there are more angles, and a professional tool is equipped with a rotary mechanism that allows you to direct the cutting element at any angle. The principle of operation is simple: before cutting off the corner of the plinth, the workpiece is fixed in the tray, and then processed with a cutting tool (knife, saw, and so on), lowering it into the slots.

Trimming the ceiling plinth with a miter box

How to properly cut a ceiling plinth for an inner corner on a miter box:

The first step is to attach the baseboard to the surface and mark the required length with a pencil.
Then the part is installed in the tray so that its current position coincides with the position on the surface.
Using the clamping mechanism, the plinth is fixed on the far wall of the tool container.
The product is taken with the left hand. After that, it is necessary to choose the correct position of the cutting element (angle of 45 degrees). In this case, the handle of the tool should be as close as possible to the left hand.
Applying light pressure on the part, trimming begins. It is important not to press the product too hard, otherwise you can deform it.
The same manipulations, only in mirror image, must be carried out with the second plinth.

Then the trimmed strips must be checked for correct processing. To do this, it is enough to connect the ceiling plinth by simply attaching the planks to the surface. If a wooden product is used, then it will most likely have to be further processed with a file.

On a note! First of all, it is necessary to arrange the internal corners on the ceiling plinths, only after that proceed to the external ones. Otherwise, the length of the purchased strips may not be enough.

How to properly cut the ceiling plinth for the outer corner:

Before cutting the corners, you need to attach the fillet to the edge of the wall so that the product extends slightly beyond the surface, and make a mark.
Then do the same operations as in the previous instructions.
At the end, make a fitting and, if necessary, additionally process the edges with a clerical knife or file.

Important! To cut the corners of the skirting boards with a miter box, you need a perfectly even angle of the surfaces of 90 degrees. If there are any irregularities on the walls, due to which deviations of more than 2 degrees will be present, other tools will have to be used.

Processing fillets using markup

Most often, the result of the finishing alignment are even corners. But in some cases, the deviations are so large that even after fitting and filing the fillets with a file, gaps remain. And then the question of how to properly cut off the ceiling plinth with the help of a miter box will be meaningless, since in this situation it is better to cut the planks with a preliminary fitting on the spot. To carry out this procedure, you will need the following:

A thin hard pencil or marker (such a tool leaves clear lines, so you don’t have to peer).
A small fragment of a fillet.
Ruler or tape measure.
Special construction or clerical knife for processing polystyrene, polyurethane or PVC baguettes.
Saw or hacksaw for processing wooden skirting boards.

Before cutting off the ceiling plinth, it is necessary to lean the plank against the corner and draw a line along the outer edge of the product on the ceiling surface. Then attach the same fillet fragment to the opposite wall and draw the same line.

As a result, an intersection will be obtained on the ceiling surface, in which it will be necessary to dock the cut products. The resulting mark is alternately transferred to the parts that will be joined.

Then you need to take a ruler and connect the edge of the fillet with the markup. After that, the product is placed on the table and cut along the line.

This method is quite simple, but it comes with some risks. As a result, the inside of the skirting board can interfere with the connection of the parts on the surface. To prevent this from happening, you can do this: before cutting the ceiling plinth in the corners, it must be placed on the table in the same position in which it will be glued to the wall. Then cut the outer corner or inner corner at a 45 degree angle. Similarly, the next bar should be processed. In this way, lengthy processing after fitting can be avoided.

Next, you need to adjust the joint, but already at the installation site of the fillet. That is, before gluing the ceiling plinth in the corners, it is necessary to check the internal joint without applying adhesive or fasteners. Then carry out the same manipulations for the slats of the outer corner. After preliminary fitting and bringing the corners to an ideal state, you can glue the products.

Now the question of how to join ceiling plinths at uneven corners should not arise.

Trimming with a square

Now let's look at how to cut a ceiling plinth using a standard set of tools. For this you will need:

ruler or tape measure;
square;
construction, stationery knife or hacksaw.

How can I cut off the corner of the ceiling plinth if the surfaces are perfectly flat:

A ruler is applied to the fillet at an angle of 45 degrees. Using a knife, an unnecessary fragment is cut off with one movement of the hand.
In the presence of a wooden product, the plinth is first marked with a pencil, after which it is sawn off with a saw or a hacksaw.

If the wall surfaces are uneven, then the first step is to measure the degree of the angle, and then divide it into two. Let's say the angle is 80 degrees, which means that each product needs to be cut at an angle of 40 degrees.

If adjacent walls do not form a right angle, then in order to cut the baseboard, you will have to do some calculations.

Decoration with decorative corners

The easiest way to join ceiling plinths in the corners is to use special products. They are sold in hardware stores and are immediately ready for use. Fillets are simply glued to the surface, and the junction is closed decorative element. In this case, the question of how to properly cut the plinth does not make sense. Even if the joint turned out to be uneven, this defect will be hidden by a decorative corner.

How to replace the miter box with improvised means

How to make the corners of the ceiling plinth using improvised means? There are several ways:

First way. It is necessary to prepare three wooden planks the same thickness and width. Using nails or self-tapping screws, connect them into a U-shaped structure. Mark the 45 and 90 degree angles (you will need a square or a protractor for this), and then make cuts with a hacksaw. The result is a homemade miter box. How to cut ceiling plinths with this tool is indicated above.

The second way. In this case, before cutting the ceiling plinth, a simple structure should be built to hold the fillet. To do this, you need to take two boards and put together a corner from them. Then take paper and draw lines on it, going at different angles. Now let's look at how to cut corners using the resulting tool:
- fillet is laid on a wooden corner;
- in the marked place - a template with drawn lines is applied to the product and trimmed.

The third way. This method the simplest, but it requires some experience and a steady hand. In this case, you can use any design that has a right angle, for example, a table.

On a note! Before cutting a corner, measurements should be taken at the fixation point. To mark the inner corner, they begin to measure from the junction of the walls. Before cutting out the outer corner, it is necessary to mark, taking into account the fact that the product will go beyond the surface boundaries by its thickness.

The process of making a miter box at home demonstrates the video:

Installation of skirting boards

This operation will be successful if you follow a few recommendations:

Installation of ceiling fillets begins precisely with the design of the corners. After completing this operation, you can proceed with the installation of the remaining parts.
During fixation of products, it is necessary to press their edges so that there are no gaps left. In this case, excess glue should be removed immediately so that it does not have time to dry.
If a PVC skirting board was purchased, then to fix it, you can use the finishing putty, which may have remained after the finishing work.
Before gluing the skirting boards to the ceiling, it is necessary to treat the surfaces with a special primer or simply with water. Then the fillets are installed in their places and wait until the surface under them dries out. At the end, the seams and cracks are sealed with sealant or other material with a similar composition. It is better to use sealants containing acrylic.

Installing ceiling plinths is a fairly simple procedure that even a novice master can handle. The main thing is to follow the above recommendations and regularly check the correct installation with a level, even if the fillets look perfectly even to the eye. It is also important to remember that this element carries an exclusively decorative load, so even the smallest oversights are unacceptable.