Since the predominant majority of rooms are rectangular, when installing skirting boards, right angles of the walls (90 degrees) are made. It is necessary to cut the skirting boards at an angle of 45 degrees, so that when joining 2 ceiling skirting boards, a right angle is formed.

Important! The slope of the line will be different depending on whether we are making an inner corner or an outer one.

If you cut the ceiling plinth correctly, then when you connect it, you get the perfect angle without gaps.

How to cut the corners of a ceiling plinth with a miter box

It is quite difficult to make an even cut for the corner by eye. We simplify the task and use a miter box (you can buy it at any hardware store).

The cut of the ceiling plinth is carried out using a hacksaw. Cutting should be done very carefully. Do not put too much pressure on the hacksaw to avoid chipping.

Important! For uneven walls, a shorter plinth is suitable for better joining in the corners. With a short baseboard, it is easier to achieve a corner without gaps, it will not deform as much due to irregularities as a long baseboard.

How to join skirting boards in arbitrary corners

If your walls do not form a right angle, then the cut should be made without the help of a miter box.

It is necessary to cut the ceiling plinth with a clerical knife. In general, you can use any sharp enough knife. Even a kitchen knife will do, but it must be very well sharpened and have a thin blade.

We will measure our cuts directly at the corner on the wall. We will need to make marks on the wall, so it's worth stocking up with a pencil.

If, when joining, the parts do not fit together enough, a more thorough fit is needed. It can be done by cutting the plinth with a clerical knife, you can also process the edges with sandpaper.

Advice! If you are unable to fit the joint perfectly, do not worry. The gaps can be filled with sealant or putty.

When planning in the premises of their apartment, many people think about how difficult the work can be. However, everything is not so scary: you can install the ceiling plinth with your own hands - the main thing is to know about some of the features of the materials from which this finishing element is made.

Different materials and their features

• Wood . The most durable material compared to the other two below, the advantages of which are hardness, impact resistance and the ability to withstand certain mechanical loads. Nevertheless, wooden skirting boards (another name is fillets) glued to the ceiling are also relatively easy to process - they can be cut (a hacksaw is used for this), varnished. The tree will give warmth to the interior. Of the minuses, one can name a higher cost than that of polystyrene. However, wooden fillets also retain their appearance longer than foam ones.
• Styrofoam . Perhaps this material is the most fragile - it is not resistant to mechanical damage, scratches and even light blows. Of the advantages - light weight, the ability to stain in various colors and ease of processing (it can be cut with a clerical knife - however, very carefully).



• Styrofoam . This material can be considered a type of foam, however, its strength characteristics are slightly higher (extruded polystyrene foam is denser than polystyrene). As for processing, expanded polystyrene is just as easy to cut with an ordinary sharp knife, and it also has a small weight, and this is an important factor when considering the load on the walls.



Both foam plastic and expanded polystyrene have one significant advantage: the softness of the material allows you to press the baseboard as tightly as possible to the corners and to each other, as a result of which there are no gaps. In addition, modern polystyrene skirting boards are made in such a way that they have a small recess - especially for hidden wiring.

Useful. able to transform the appearance of a standard apartment into an elegant stylish interior.

Miter box - a tool for cutting skirting board corners

There are two ways to cut corners - with a tool (miter box) and without it. We will look at both methods.



Plastic miter box

A miter box is a carpenter's tool, which is a small rectangular tray (you can make it yourself from wood or buy it ready-made from plastic or metal), in the walls of which there are grooves. The grooves guide the hacksaw blade at a certain angle to the axis of the tray.

Important: the cutting angle of the edge of the plinth is always oblique and equal to 45 ° when processing elements intended for butt installation in the corners of the ceiling. An oblique cut provides a tighter fit of the fillets.

Making a miter box with your own hands

Unfortunately, not everyone at home has the whole arsenal of carpentry tools, but you can make a similar miter box yourself. To do this, a rectangular tray is knocked together from planks, then grooves are sawn in the walls - at an angle of 45 °.





Homemade plywood miter box

To measure the angle, you can use 2 downed boards and a protractor or an ordinary right-angled triangle - that's the miter box and you're done!



Method 1 - trimming the edge of the plinth with a miter box

It is worth noting that the ceiling corners can be both internal and external, and the difference between them lies in the methods of joining and different angles of cuts. The first ones are found at the joints of two walls and the ceiling, the second ones - when decorating ledges, columns, outer edges of niches, pilasters, etc.

The angle of inclination of the groove in the miter box can be equal to 45°, 60°, and 90°. Professional carpenters purchase a miter box with a swivel mechanism - in this it is very convenient to turn the cutting tool when cutting the baseboard.

Cutting "internal" corners

Important! To cut the “inner” corner, the fillet should be placed on the bottom of the miter box with the upper part - the one that will be glued to the ceiling. In this case, the lower part of the bar should be firmly pressed against the wall of the tray.



Step 1: the correct measurement of the length of the plinth according to its marking on the wall, drawing a “serif” with a pencil on the material for the future cut.

Step 2: installation of material in the miter box. The correct placement of the skirting board in the tray will determine the correctness of cutting the edges of the fillets, and, accordingly, the accuracy of placing them on the ceiling.



Step 3: after the plinth is installed and tightly fixed in the miter box (you can simply press the material firmly with one hand), a hacksaw is set into the groove at 45 °. Now the material can be cut. The edges of the second plinth, which will be installed adjacent to the first, are cut in the same way, only as if in a mirror image (the plinth is installed in the opposite direction, the edges are also cut at an angle of 45 °).

Important: when trimming the edges of the fillets, jewelry accuracy is needed - otherwise the material will be damaged, and the appearance of the skirting boards at the joints of the walls too. If polystyrene foam baseboards are used, then the edges can be cut off with an ordinary sharp knife without a miter box. However, it should be remembered that cutting corners must be done from the front side.

Cutting "outer" corners

The difference between cutting the “external” corner and the “internal” one is that the skirting boards should protrude slightly from the edge of the wall - for the so-called overlap.

We repeat steps 1, 2, 3 in the same way as cutting "internal" corners. However, it should be remembered that the upper part of the plinth (one of the edges) should have a small allowance. The second (adjacent) overlay is cut in the same way, only mirrored to the first.



Cutting the edges of a wooden ceiling plinth is easiest (and best) with a hacksaw for metal - with fine, frequent teeth. Then the cuts will be more accurate and even. And the foam is well cut with an ordinary sharp knife (or construction) - but the blade must be well honed, otherwise the material will crumble when cutting.

All photos from the article

When someone first takes on the preparation of corners, most often he has to spoil more than one meter of material. Alas, even the acquired miter box does not always help in this, when the walls in the room are connected at an arbitrary, and not at a right angle.

Then you have to rely on your own eye or make a special template. Today you will learn how to make the corners of a ceiling molding with and without a tool.

Tip: instead of the saw that came with the miter box, it is better to use a regular hacksaw for metal. Its cut is more accurate and smoother, which is very important in this process.

Before starting work

Choosing the right baguette width is the key to a beautiful interior. Not the last role in the sawing process is also played by the method by which you do it. We want to give you a couple of recommendations that will help you achieve your goals.

So, how to choose the width of the material and how to cut the ceiling plinth in the corners:

• the prepared surface of the walls is not a standard for evenness, use planks of a smaller width, as they are more flexible and can close the maximum number of defects. Accordingly, on the contrary, the more ideal the surface, the wider the molding can be, but keep in mind - in rooms with low ceilings, mount a narrow baguette so as not to reduce them visually;
• always apply the left side of the angle to the miter box when sawing on the left, the right side on the right. In addition, this should be the side of the tool closest to you, the far side for floor moldings. Please do not confuse.

Below we will deal with the task in more detail, where you will learn how to cut the corners of the ceiling plinth correctly and with the highest quality.

External

There is one nuance to this process that you should never forget. We always look at the ceiling fillet from below, so when the bar is placed in the miter box (toward the wall closest to you), it must be turned over.

The upper part of the molding will then be at your bottom, and the lower, respectively, at the top. Thus, there will be no gaps between the planes of the corner parts when they are connected.

The process instruction would be:

1. Take measuring tools, such as a tape measure, and a pencil. Start marking from the inside corner so you don't miss the outside corner. It may happen that the length of the baguette is not enough and many joints will have to be made;
2. Attach the molding to the ceiling surface and mark the dimensions;
3. Prepare a miter box and a hacksaw for metal. Press the baguette to the side of the instrument closest to you;
4. Hold the fillet with your hand and select the position of the hacksaw, which will set the appropriate connection angle. These can be standard parameters - 45, 90, or 135˚, or arbitrary, for which it is necessary to move the miter box to the selected degree;
5. Cut the workpiece with a hacksaw;
6. Install the opposite bar to the near wall of the tool and fix it with your hand;
7. Set the selected degree on the miter box and cut the workpiece with a hacksaw;
8. Dock the resulting plinth strips.

Tip: if the walls are connected to each other at a right angle, only in this case the miter box will help you in your work, otherwise you will have to do the adjustment yourself.

Interior

There is a professional miter box, which has a turntable and can be moved apart to obtain arbitrary angles, as well as for home use, where special features are limited. Usually in repairs it is enough to use the second option.

So, the basic principle is that the ceiling strips are cut off at the tool wall closest to you, we hope you have not forgotten.

The process in this case looks like this:

1. Measure the required length of the baguette by attaching it to the ceiling surface;
2. Place the molding bar in the miter box, while its position must fully correspond to the location of the baguette on the ceiling;
3. Press the bar against the near wall of the tool;
4. Choose the appropriate degree of cut, most often it is 45. Make sure that the handle of the hacksaw is as close as possible to the hand holding the bar in order to make the cut as accurately as possible;
5. Cut off the workpiece, but do not apply excessive force to the hacksaw;
6. Prepare and cut the opposite baguette strip, remembering that it must be pressed against the near wall of the miter box;
7. Choose the appropriate cutting angle for it, too, leaving a minimum distance between the hacksaw handle and the hand holding the molding;
8. Cut off the end of the plank.

It remains to check the correctness of the joining of the segments, and, if everything meets the expectations, install them in place.

Tip: start cutting from the front of the molding, then you can orient it in place as accurately as possible. Process the corners of the wooden baguette after cutting and adjust with a file.

How to make the corners of a ceiling baguette without a miter box

Having decided for the first time to make a frame on the ceiling, the beginner does not see any problem in this, but in vain. We advise you to immediately take into account in the costs a certain amount of material that you just have to throw away.

Alas, at what angle to cut the ceiling plinth depends only on the connection of the walls to each other. Not everyone fits straight, for which it is enough to simply cut the planks at 45˚. Often there are parameters corresponding to 85 or 95 degrees, but this is already a problem for beginner finishers.

If you are the owner of an apartment built in the last century, this was generally considered the norm. The fact is that when you simply cut the strips at 45˚ and install them on the ceiling, there will be gaps between them, which then will have to be sealed with sealant or putty. We will try to help you solve this problem at minimal cost, since the price of not every molding is cheap.

So, how to properly cut the corners of the ceiling plinth for the inner corner:

Remember when creating:

• inner corner - the lower part protrudes above the upper;
• external - top over bottom.

- This is the design of the corner. It is necessary to join the planks in such places very carefully, otherwise the appearance of the decor will be hopelessly damaged. Of course, you can use quite aesthetic special corner elements.

However, naturally joined planks usually look more harmonious. And in this case, you won’t have to spend money on additional details. Therefore, later in the article we will consider how to cut the corner of the ceiling plinth correctly and how to process the seam.

Trimming the ceiling plinth

Ceiling skirting boards are made from a variety of materials - foam, plastic, wood. To trim them, tools available in every home can be used. Styrofoam strips are cut with scissors or a knife. The wooden plinth is cut with a hacksaw for wood. How to cut a plastic plinth is also not a question. You can cut it with an ordinary hacksaw for metal.

Trimming a wooden plinth is done with a regular hacksaw

What is a chair?

For accurate and most accurate trimming of ceiling plinths, a special tool is usually used - a miter box. It represents a tray knocked down from three boards. There are slots in its walls located at a certain angle to the axis (45, 60 and 90g, etc.). They are designed to guide the hacksaw blade when cutting. You can buy a miter box for a ceiling plinth at a hardware store.

Trimming the planks at an angle of 45 degrees is done in a miter box

Trimming the ceiling plinth in the miter box

Trimming in the miter box is performed as follows:

1. The right strip is placed in the tray from left to right with the wrong side to the bottom (the part that will later adjoin the ceiling). Part of the junction with the wall should be leaning against the side board of the tray (closest to you);
2. The bar is pressed tightly against the tool and cut through the slot.

How to make a corner of a ceiling plinth

1. A second ceiling strip is inserted into the tray from right to left and cut off;
2. Finished planks are attached to the corner and the joint is adjusted with a knife;

Planks are attached to the corner, and adjustments are made

1. How to join the corners of the ceiling plinth? You can do this from a ladder right on the wall. But this is not very convenient, so experts advise combining polyurethane and foam plastic elements and gluing them with each other on the floor with special glue for joints.

It is best to glue the corner before installing the skirting board on the walls.

How to cut the plinth:

What to do if there is no miter box?

So we figured out how to saw down a ceiling plinth (the video above may help someone figure it out better) using a miter box. But what to do if this tool is not at hand? In fact, it is possible to adjust the slats evenly without using it. There are two main ways to solve this problem: marking directly on the wall and making an imitation of a miter box.

In the first case, the procedure is as follows:

1. The left band is pressed tightly against the ceiling;
2. Line 1 is drawn directly on the ceiling with a pencil along its upper edge;

How to cut a ceiling plinth without a miter box. Carrying out the first line

1. Next, the right ceiling element is attached to the ceiling and line 2 is drawn;
2. A mark is placed at the intersection of the edge of the right plank with line 1;

The second line is drawn and a mark is placed on the plinth

1. Further, the left element is again attached to the ceiling;
2. A mark is also placed at the intersection of its upper edge with line 2;
3. Now on each strip you need to connect the marks with the end of the bottom edge of the plinth;

Then, along the resulting line, the plinth is actually cut at an angle.

Without the use of a tray, the strips mounted in the corner can be quite neat

In order to cut an even angle, you can also use the imitation of a miter box:

1. On a smooth plywood sheet, we draw two strictly parallel lines;
2. We put a point on one of them and, using a protractor, connect it to the second line at an angle of exactly 45 degrees (draw to the left);
3. At a distance of 10 centimeters to the left of the first point, we put the second;
4. We connect it with the second line at an angle of 45 degrees (draw to the right).

How to cut a corner of a ceiling plinth using an imitation of a miter box

The improvised miter box is ready. Now it remains to attach the right ceiling element (wrong side) on the right with the lower edge to the line closest to you and cut it off. The same with the left bar (only you need to apply it on the left).

How to cut a ceiling plinth (video) without a miter box:

How to connect planks if the angle is uneven

In city apartments, and especially in old ones, the walls are rarely even. Therefore, the angles between them are often not straight at all. How to cut down the ceiling plinth in this case?

In fact, it is not as difficult as it might seem at first glance. You just need to measure the angle. To do this, you can use a special tool Malku or just make a template out of paper and use a protractor.

An uneven angle can be measured using a small protractor

We divide the resulting angle by two, draw the corresponding "miter box" on plywood and cut the strips. Next, you just need to connect them with glue.

How to clean up corners

How to cut the corner of the ceiling plinth, we found out. Now let's see how to finish the joints. How to cover the joint in the corner? In the event that a small gap remains here, the sealing can be done with a regular putty to match the color of the plinth. Joints can also be passed with silicone sealant.

The gap between the planks in the inner corner can be puttied with putty

Corner pieces for ceiling plinth

Trimming ceiling strips when using corner elements (special connectors) is also usually performed in a miter box. How to cut the planks in this case? Everything is very simple - the cutting is performed at a right angle. In the absence of a tray, you can use a regular protractor or square. Corner elements (photo):

When using corner elements, strips are trimmed at right angles.

How to trim the floor plinth

Floor plinths can be made of, or MDF. Just as in the case of a ceiling plinth, they need to be sawn, depending on the material, with an ordinary hacksaw (wooden) or a hacksaw for metal (plastic).

Now you know how to cut down a ceiling plinth. Next, let's see how the fitting and trimming of the floor is performed. How to use the chair in this case? When cutting a floor plinth, the procedure is approximately the same as when cutting a ceiling plinth. For inside corner:

1. We take the first strip and put it in the tray from right to left so that it lies in it in the same way as on the floor. We lean it against the far wall of the instrument as against a wall;

The strip is inserted into the tray and pressed tightly

1. We trim the unnecessary piece from the left end at an angle through hole 1 (figure below);
2. We insert the second strip from left to right in exactly the same position and cut it from the right end through hole 2.

How to cut the plinth in the corner if it is external:

1. We insert the first strip into the tray in the same way as for the inner corner (from right to left);
2. We cut it from the left end through hole 2;
3. We insert the second bar from left to right and cut its right end through slot 1.

How to cut a ceiling plinth for external and internal corners

Thus, we have considered in the most detailed way how to cut the baseboard in the corners. The procedure is not as complicated as it might seem at first glance. Starting pruning in a miter box or using its imitation, you will see for yourself.

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How to cut a corner on an indoor and outdoor ceiling plinth using a miter box

Have you decided to install a ceiling plinth (fillet, molding)? Do you want to hide the joints and get a finished look? While doing the work, you may encounter a lot of nuances. To avoid difficulties, you should figure out how to cut a ceiling plinth in the corners of internal and external, what is a miter box and how to make it. This is what we'll do.

Tools

When installing fillets, the question invariably arises of how to properly cut the slope of these decorative elements. To solve this problem, certain tools are used to do everything right:

• tape measure and pencil;
• hacksaw;
• ordinary or clerical;
• miter box.

The miter box is a popular, easy-to-use carpentry tool that allows you to cut the skirting board at the desired angle. This device is made of metal, wood, plastic. On the side walls, the device has vertical cutting slots made at an angle of 45, 60, 90 degrees.

Professional models are devices with a swivel mechanism that allows you to fix the file relative to the workpiece at almost any angle. Thus, the question of how to cut the ceiling plinth at an angle is greatly facilitated.

Trim the corners

At what angle to cut the ceiling plinth , depends on its location - it is external or internal.

Internal slope

Gouging an inside corner is done step by step in a certain order:

1. First you need to measure the desired length of the plinth on the ceiling.

1. Install the workpiece bar inside the miter box as it will be located on the ceiling.

For proper work, it is necessary to place the skirting board with the right side up.

1. Press the workpiece against the far wall of the tool, holding it with your left hand.
2. The next step is to set the file at a 45 degree angle so that its handle is as close as possible to the left hand. The plinth should be cut without strong pressure on the saw.

1. Next, you need to cut the reciprocal bar. To do this, the workpiece is installed against the far wall.
2. We hold it with our right hand.
3. We turn the hacksaw at an angle of 45 degrees. In this case, the handle should be turned to the right. After that, you can cut off the plinth.

1. At the end of trimming, the inner corner of the ceiling plinth is checked by joining the planks.

Following this algorithm, you can do the job with millimeter accuracy. And the question of how to trim the inner corner will already be closed.

External slope

It is better to proceed to cutting the outer corner only after the inner one, because otherwise the molding may not be long enough.

To decide how to properly cut the outer corner, you must act in a strictly defined way:

1. The first step, as in the case of the inner corner, is marking on the ceiling and applying the necessary marks to it with a pencil.
2. At the second stage, the plinth blank should be installed close to the near wall of the miter box.

1. Holding the bar with your left hand, turn the handle 45 degrees to the left with a hacksaw and cut off the baseboard.
2. To saw off the striker, you need to position it closer to the front wall of the fixture, holding it with your right hand. Saw off the skirting board at a 45 degree angle by turning the handle to the right.

1. After that, the cut pieces are joined together and, if necessary, the surfaces are trimmed, forming an external corner.

We make a miter box on our own

Sample

The template can be made using cardboard, wood or paper. The necessary markings are applied to these materials in the following form:

• first, two clear lines are applied in parallel;
• between these lines, a central point is determined and marked on paper;
• with the help of a protractor, the necessary angles are drawn, which can be more than 90 degrees.

It is important to consider the angle between walls and between walls and ceiling before using the template.

miter box

The manufacture of this tool can be done in different ways:

1. A U-shaped box is mounted from three wooden boards or planks. On its walls, grooves are marked and cut out at the desired slopes.
2. Two boards are knocked together strictly in perpendicular planes. A pattern is applied to the paper in the form of lines with inclinations of 45 degrees for cutting. The workpiece is applied to the corner, pressed against it by hand, as in the case of using a miter box, and the paper template is located on the opposite side. Cutting the fillet is carried out with orientation to the lines drawn on paper. When cutting a ceiling plinth, you can use anything that forms a right angle.

Other Ways to Trim Corners

It is most rational to use the miter box when the adjoining walls are strictly perpendicular planes. In other cases, these tasks can be solved by marking the plinth on the ceiling. This method allows you to take into account all deviations in the size of the angle, as well as uneven walls.

It is important to carry out the work in a certain order:

1. First, two blanks are cut along a straight vertical line.
2. At the next stage, it is necessary to attach one bar, resting it against a perpendicular wall with its end, and then do the same operations with the second bar.
3. Draw a line on the ceiling with a pencil.

1. The intersection point of the drawn contours will mean the mark along which the plinth is cut, forming corner in ceiling molding.
2. Then you should reattach each plank in turn and mark on them a cut line connecting its two edges.
3. The plinth is cut along the marked lines, after which its two parts must be joined and attached to the installation site.

With this method, it is important to consider two points: 1) it is more suitable for internal corners; 2) it is impossible to fix the fillets one by one without first joining and trying on their relative position. The remaining gaps between the two planks can be puttied.

Types of fillets

After we figured out the basic principles of corner trimming, I want to mention that fillets can be made from different materials:

• polyurethane;
• polyvinyl chloride;
• polystyrene (polystyrene);
• tree.

And so that you have an idea about each of them, and can choose the right part, I will briefly describe their characteristics:

• Polyurethane stucco is distinguished by its quality, strength, elasticity and resistance to moisture. Their main disadvantage is poor resistance to sudden temperature changes. Therefore, in rooms with high humidity, I would not recommend installing such parts.

• Skirting boards made of polyvinyl chloride are distinguished by a favorable price. However, the material is capable of accumulating static electricity.

• Polystyrene fillets are resistant to moisture, have good quality and attractive appearance. However, under mechanical stress, they can break.

• Wooden skirting boards are natural materials, but their disadvantage is exposure to moisture, high temperatures, and relatively large weight.

Also fillets differ in their length, width, shape, relief. Most often they are glued to the ceiling joints to hide them. You need to choose a molding based on the type of wall and ceiling, the size of the room.

Now you know how to make a miter box yourself and how to make a clear corner on the ceiling plinth. By following the rules I have described, you can easily solve this problem. If you have any questions - ask them in the comments. A visual algorithm of actions will demonstrate the video in this article.

If you want to express gratitude, add a clarification or objection, ask the author something - add a comment or say thanks!