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How to properly cut a ceiling plinth - internal and external corners, fitting uneven, joining in rounded corners. How to make the corner of the ceiling plinth with the help of a miter box and improvised means. Description of the process with photos and videos How to

Repair is a responsible and costly undertaking. Although you can save a lot if you do the work yourself. Cosmetic finishing of premises is carried out according to certain technologies. You can decorate the interior with the help of the most different materials.

Today, a very popular technique is the use of ceiling plinths to hide irregularities between the walls and ceiling. In order for the contour to be aesthetic, it is necessary to do the work carefully. How to cut corners on ceiling plinths, the advice of experienced construction and repair craftsmen will help you understand. They will show you how to various tools perform the necessary manipulations decorative trim various types.

General characteristics of the finish

When studying the question of how to properly cut a corner on a ceiling plinth, you should familiarize yourself with the features of such a finish. Stucco molding between the ceiling and walls is now made of artificial materials. It can be polyvinyl chloride, polystyrene foam or polyurethane. Wood can be used from natural materials.

In the construction business it is called (scientifically) a fillet. Of all the materials from which such trim elements are made, polyurethane is considered the highest quality. Therefore, it is better to choose it. Next, let's try to figure out how to cut a corner. Expert advice will help you do this job well.

Skirting material

Experts agree that polyurethane is best material for the presented finishing products. But even it has a number of shortcomings. These should be taken into account before cutting corners on ceiling moldings. Polyurethane is subject to temperature fluctuations. Therefore, it is not used for decoration in the kitchen or bath. Otherwise, the skirting boards will quickly crack and lose their aesthetics.

Expanded polystyrene has almost all the positive characteristics inherent in polyurethane. But it is still more fragile material. It's easy to break.

Skirting boards made of PVC are relatively cheap. But it is very easy to leave dents or potholes on them. Therefore, it is necessary to work with such products very carefully.

Wood looks very beautiful, but not in all interiors. In addition, it is quite difficult for an unprofessional master to work with such material. Would you like to do your own repairs? Then you better still choose polyurethane or expanded polystyrene.

Form, fittings

When studying the question of how to properly cut a corner on a ceiling plinth, attention should be paid to its shape and related products. There are embossed and smooth fillets. Their width and length can vary significantly.

When choosing the size of the skirting boards, the type of interior, as well as the height of the ceilings, are taken into account. For small room, where the distance from floor to ceiling is not more than 2.75 m, wide skirting boards will not work. They will look out of place. For the same reason, a narrow fillet should not be used for high ceilings. In such rooms, a 45 mm plinth looks good.

For installation, you can purchase curly corners from the same material as the fillet. They are external and internal. But quite often the skirting boards are joined without them, directly. In this case, you need to perform a smooth, beautiful trimming of the corners.

Preparatory work

To make the process quick and easy, use a tool such as a miter box. This is a U-shaped template. There are slot patterns in its side walls. They have different angles.

There is another technique that allows you to evenly glue the ceiling plinth. It is possible to cut corners without a miter box. But still, the use of such a tool greatly facilitates the work.

First you need to mark the plinth. If you want to create an external corner, measure the length along the ceiling, internal - along the wall. For fillets, a line slope of 45 and 90 degrees is used. Since it's pretty a small amount of options for slots, it is quite possible to make a template yourself. All you need is a sheet of paper or cardboard.

If the repairman has considerable experience in carrying out such operations, he can cut corners without additional tools. The master attaches the fillet to the wall, and then makes marks on the product right here. After that, he cuts off the excess. An inexperienced master, most likely, will not be able to cut even corners the first time. Therefore, it is better to use a miter box or close the irregularities with decorative corners.

Inner corner

First of all, it is necessary to consider the technique of how to cut the inner corner of the ceiling plinth. After all, they are in every room. If a outside corners in ordinary rectangular rooms are absent, then these varieties will have to be cut out in any case.

A plinth is placed at the bottom of the miter box with the side that will adjoin the ceiling. The lower part of the fillet will be pressed against the wall of the tray.

If the material is hard, it is cut with a metal saw. Soft products are easily processed with a sharp knife. The angle should be 45 degrees. If the pressure during cutting is too strong, hooks and chips will form on the plinth. cut in the same way.

Before gluing, they are applied to the wall and, if necessary, correct small irregularities. There should be no gaps between the skirting boards. If this is the first time such work is being done, you can practice in small pieces.

outside corner

Quite often, the contour of the walls in the room has a complex shape. In this case, you will need to figure out how to cut the outer corner of the ceiling plinth. To do this, it is laid on the bottom of the miter box in the same way as in the previous version, with the side that is adjacent to the ceiling.

For these corners, other slots are used. They also have a slope of 45 degrees, but are on the other side. Further, after marking and trimming, 2 skirting boards are applied to the corresponding place on the ceiling. An adjustment is being made.

Difficulties may arise if it is necessary to cut the same plinth on one side for the outer corner, and on the other for the inner corner. This is where many make a mistake. First you need to cut the inner corner. Otherwise, a skirting board that is too short will not dock in any place.

Work without a miter box

Polyurethane looks very nice. How to cut corners on such a product so as not to spoil its appearance? And here the advice of experts will help the inexperienced master. Not always a home master has at hand such a tool as a miter box. You can do without it.

To do this, the markup is performed directly on the wall. First, measure the required length of the decorative product. It is cut at a right angle. Next, apply each piece to the ceiling. They are outlined with a pencil. This results in an intersection. It is applied to both skirting boards.

From the point of intersection to the edge, draw an oblique line. This is the crop border. It is corrected before gluing by attaching both skirting boards to the corner. This is a fairly simple method, but even it requires a good eye and accuracy in work.

homemade tool

Don't have a chair? No problem! You can do it yourself. When cutting for the first time, it is better to use it in your work. This will require a plywood board, paper or cardboard.

Wondering how to cut outer corner ceiling plinth, as well as its internal varieties, it is necessary to adopt this approach. Two parallel lines are drawn on the selected material. Then, using a protractor, angles of 45 degrees are made along the edges.

A home-made tool is applied to the plinth, making appropriate notes. The pruning technique is the same. The miter box is not used if the walls in the room are very uneven. When creating an angle of 45 degrees, gaps between the joints are obtained due to such inconsistencies. Therefore, pruning is done in the previous way. Before installation, the edges must be corrected.

Embossed plinth

So, we already know how to cut corners on ceiling moldings. But we considered the procedure for performing work in the presence of simple forms. Now you should pay attention to the relief varieties. Their installation is subject to increased requirements. Due to the presence decorative elements cutting such products is a little more difficult.

Docking of corners is carried out in those places where stucco or other volumetric elements protrude more above the surface. The angle is then expressive. It is better to take into account the components of the picture and crop it in the appropriate place.

The joints of volumetric ceiling plinths must be carefully glued. When working with relief products, it is allowed to use the tool listed above. It is allowed to make markings on the wall. But with the help of a miter box, it will be easier to cut voluminous skirting boards.

If you do the work carefully, the result will exceed all expectations. Having studied all the intricacies of the technique and figured out how to cut corners on ceiling plinths, you can begin to practice. Don't worry, the process will be easy and fast. This finish will fit into almost any interior. If all actions are performed carefully, gluing the joints with high quality, the decorative effect will be amazing. The interior will please the eye for a long time.

In order to hide the junction of the walls and the ceiling surface and to give the ceiling a finished look, fillets should be installed. In the process of performing this type of work, difficulties often arise, but they are mainly due to the fact that there is not enough knowledge on how to properly cut off the corner of the ceiling plinth.

Tools Used

Before you mount the moldings, you need to have certain tools at your disposal. Some of them are always at hand from the home craftsman, while others will have to be purchased or made personally. When installing these decorative products, there is certainly a problem with how to make a cut on the ceiling plinth, observing the required slope.

To solve this problem, they use tools that allow you to do the job correctly and as quickly as possible, including:

  • pencil;
  • roulette;
  • hacksaw;
  • ordinary, but better stationery knife;
  • miter box.

The last in the above list is the miter box - this is an easy-to-use and popular carpentry device that allows you to cut the corners of the ceiling plinth at a certain slope. For the manufacture of this tool, different materials are used - wood, metal or plastic.

On the side walls of the miter box there are always vertical slots necessary in order to cut corners of fillets at an inclination of 90, 60 or 45 degrees.

Professional samples of this carpentry tool have a swivel mechanism that allows you to fix the file relative to the baseboards at almost any angle. As a result, solving the problem of how to cut ceiling fillets at the desired angle is greatly simplified.

Corner cutting

At what angle the ceiling fillet should be cut directly depends on its location, or rather on what the slope will be - internal or external.

Kickoff inner corner with the use of a miter box, they are performed in a strictly defined sequence:

  1. On the ceiling, measure the required length of the plinth.
  2. The workpiece bar is placed in the fixture as it will be on the ceiling surface. For the correct performance of the work, the fillet must be positioned with the front surface up.
  3. The workpiece is pressed against the far wall of the device and held with the left hand.
  4. Next, the file is placed at an inclination of 45 degrees so that its handle is as close as possible to the left hand. To saw down the ceiling plinth - cutting is performed without too much pressure on the hacksaw.
  5. Then you need to prepare a reciprocal bar, for which the workpiece is moved to the far wall and held right hand.
  6. The hacksaw is rotated at a 45 degree angle. In this case, the handle is directed to the right and a part of the plinth is cut off.
  7. After cutting the inner corner of the decorative fillet, the correctness of the work performed is controlled by joining the planks.

Acting in accordance with the algorithm described above, it is possible, with an accuracy of one millimeter, to cut the corners of the ceiling plinth without much effort.

Experts advise starting cutting the outer corner after the problem with the inner corner is solved, since the length of the product is not always enough.

To make the correct wash down of the outer corner, you must proceed as follows:

  1. First, as in the situation with the internal corner, markings are made on the ceiling, marking with a pencil.
  2. Further, the fillet blank is placed close to the near wall of the carpentry fixture.
  3. Holding the bar with your left hand, turn the handle of the hacksaw to the left by 45 degrees and cut it off.
  4. To saw off the counter element, it must be brought closer to the front wall of the miter box, holding it with your right hand. The fillet is cut with an inclination of 45 degrees, turning the handle to the right.
  5. At the end, the cut parts are joined, and, if necessary, the surfaces are trimmed, creating a neat outer corner.

Using a Template

There is a way to cut the corners of a ceiling plinth without a miter box - using a template. It is made from wood, cardboard or paper.

The material is marked in the following order:

  • first draw two clear parallel straight lines;
  • between them determine the central point and outline it;
  • using a protractor, the desired angles are applied, which can exceed 90 degrees.

Before using the template, you need to take into account the angles between adjoining walls and between the ceiling surface and the walls. The cutting technology using a template is almost the same as using a carpentry tool.

Self-made miter box

To make this device yourself, you can use one of the following methods:

  1. A U-shaped box is assembled from three planks or planks, on the walls of which grooves are marked and cut out at certain slopes.
  2. They take two boards and knock them down strictly perpendicular to each other. A sheet of paper shows a template with slanted lines for cutting at an angle of 45 degrees. The product is applied to the corner and pressed by hand, as when using a miter box, and a paper template is placed on the opposite side. The fillets are cut in accordance with the lines drawn on the paper sheet. When cutting ceiling plinths, you can use anything that forms an angle of 90 degrees.

Other corner cutting methods

When the adjoining planes of the walls of the room form a right angle, the best solution would be to use a miter box. In other cases, you can use other methods, such as sawing the ceiling plinth at an angle, for example, by marking this product on the ceiling. This technology allows you to take into account all deviations regarding the magnitude of the angle, as well as the unevenness of the walls.


In this case, the work is performed as follows:

  1. First of all, two blanks are cut according to a straight vertical line.
  2. Next, one of the strips is applied to the surface, resting it with its end against a perpendicular wall. Do the same with the second part of the plinth.
  3. Their contours are outlined on the ceiling plane with a pencil. The intersection point is the mark relative to which the fillet is cut, forming an angle in it.
  4. Then reapply each of the planks and mark a cut line on them that will connect its two edges.
  5. The plinth is cut in accordance with the marked lines, after which both parts are connected and applied to the installation site.

If out of all the ways how to cut the corners of the ceiling plinth, this one is chosen, it is important to take into account a few nuances:

  • it is better to use it for internal corners;
  • you should not start fastening the fillets one at a time without first connecting the two parts and without checking their relative position. The remaining gaps between the planks must be puttied.

Types of ceiling decorative plinths

Before proceeding with the installation of fillets, they must be purchased, and for this you should have information regarding the range of these products.

Skirting boards are made from various materials, namely from:

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

To have an idea about each type of decorative ceiling elements and choose the right product, you need to know at least their brief characteristics:

  1. Skirting boards made of polyvinyl chloride have a favorable cost, but this material has the ability to accumulate static electricity.
  2. Polyurethane stucco is distinguished by high quality, strength, moisture resistance and elasticity. Its main disadvantage is the lack of resistance to sudden temperature changes and for this reason polyurethane products should not be installed in rooms with high humidity.
  3. Wooden fillets are exposed to elevated temperatures, moisture and are heavy.
  4. Polystyrene skirting boards are moisture resistant, good quality and attractive appearance, but break under mechanical stress.

In addition, fillets differ in other parameters - width, length, relief and shape. Their use in rooms of different sizes depends on these characteristics.

For example, wide products harmoniously look in high rooms. There are nuances in how to cut wide ceiling plinths. The fact is that these profiles are joined at an angle of 90 degrees. For an accurate cut, a miter box is used. But when the corners of the room deviate from the standards, the work is done manually.


The installation of baguettes and skirting boards gives the repair a finished and neat look, but only if the trimming is done correctly and all joints converge perfectly evenly. For cropping, different tools and methods are used to facilitate the work, but it is also important to take into account the many nuances that we will talk about today.

Types of ceiling and floor plinths, choice of tools

Installation of baguettes and skirting boards is no less important stage of repair than any other. And trimming the corners here is the hardest part. It is important to choose the right tool for the job and the most appropriate cutting method.

Ceiling plinth

A ceiling baguette, also known as a molding, fillet, border or just a plinth, is most often used to finish the joint between the wall and the ceiling. Although sometimes they cover the inner corners, make decorative frames or panels, decorate niches and architectural elements. There are several of the most popular materials for the manufacture of ceiling moldings:

Plastic (polyvinyl chloride). Wide and rigid moldings are more convenient to cut with a hacksaw. If you need a more gentle tool, use a jigsaw.

Styrofoam (polystyrene foam). Very light and porous material, which is best cut with a sharp construction or clerical knife.

Wooden baguettes. For cutting, helical-toothed saws, specially designed for baguettes, are suitable. You can also use manual or electric jigsaws.

Floor plinth

A modern floor plinth can hardly be called a plank that closes the gap. This is a constructive component that complements the design and emphasizes the overall design. Skirting boards are made from several materials:

Wooden can be made from solid wood or veneer. For trimming use flat or circular saws, jigsaws.

Plastic skirting boards- "dangerous" competitors to the traditional tree. Easily installed and cut with a conventional hacksaw for metal.

Aluminum skirting boards- the last word in interior design. They are usually cut with an electric saw or a hand saw for metal.

Only on wooden skirting boards will you have to do the corner trimming. The rest are cut evenly and connected using special corners.

Corner types

Corner joining and plinth trimming differs depending on the type of corner, they are distinguished: internal, external and non-standard.

Interior angle, in other words, the angle of the room is less than 180°, typically 90°. When trimming an inside corner, the bottom of the ceiling plinth always protrudes above the top. First of all, it is still necessary to measure the angle between the walls, if it is standard and equal to 90 °, then the planks are cut at an angle of 45 °. Baguette, which is glued with right side should be cut from the left, and the left plank from the right.

The outer or outer angle is less common, it is more than 180 °, usually about 270 °. In working with such angles, everything is exactly the opposite. The edge of the plinth, which will be pressed against the ceiling, should be larger than the bottom.

Irregular corners. These most often mean angles with a degree greater or less than the standard of 90 ° and 270 °, as well as various kinds of rounding. Pruning in this case is carried out "by eye" or with markings in place. Sections with roundings are assembled from several small elements, each of which is adjusted in turn.

Methods for cutting skirting boards

If the corners are standard, it is most convenient to cut the baseboards with a miter box or a stencil. In other cases, they resort to the method of marking in place.

Cutting a baguette with a miter box

A miter box is a carpentry tool that is designed specifically for cutting a baguette. It can be made from plastic, wood or metal. The shape resembles a tray with slots (grooves) on the walls. The miter box helps to correctly determine the angle of inclination and evenly cut the bar at 45, 60 or 90 degrees. Some models may have more graduation guides.

When working with a miter box, it is important to correctly place the baguette:

  1. The baguette in the end section has the shape of an irregular triangle, so the side that will be glued to the ceiling is pressed against the bottom of the miter box, and the wall side against the wall of the instrument.
  2. The cut is made through opposite grooves. If you need to cut the baguette under the inner corner, then it is cut at an acute angle, and if the outer one is at a blunt one.
  3. Ceiling plinths are always laid against the nearest wall. The left side is placed on the left side, and the right side, respectively, on the right side.
  4. Floor plinths are applied to the far wall of the miter box, “away from you”. Corners are cut according to the same principle.

A stencil is nothing more than a flat imitation of a miter box. Make it easy. To begin with, it is worth arming yourself with a ruler, a pencil and a protractor.

Two parallel lines are drawn on a flat surface, the width between which should not be less than the width of the baguette. A perpendicular is drawn in the middle of the segments. All angles must be 90°. Further, this segment connecting the two parallels is divided in half and two more lines are drawn through the point at an angle of 45 ° from the perpendicular. A baguette is placed on the stencil, as in a miter box.

Cutting with pencil marks

This is another way to cut a baguette straight without a miter box.

For the inside corner. The plinth is applied to the ceiling as it will have to stand, to the left of the corner, and a line is drawn on the ceiling. Then the segment is applied to the other side, to the right of the corner, and a line is also drawn on the ceiling. The two lines should form an intersection point. The plinth segments are again applied in turn and a straight line is lowered from the intersection point to the lower edge of the plinth, it will be the cut line.

For outside corner. A plinth is applied to the right of the corner and a line is drawn on the ceiling with a pencil beyond the corner of the wall connection. After that, a plinth is applied on the left side of the corner and a second line is drawn to the intersection with the first. The intersection point is transferred to the upper edge of the baguette. The point where the corner of the walls converges and the inner bottom edge of the baguette will be the second mark. Two points connect and cut the baguette along the line.

Cutting a wide molding with a pattern

If a large pattern on the surface of the curb fell just at the junction of the inner corner, it will have to be adjusted, otherwise the overall look will be spoiled.

A section with a pattern is cut out of the ceiling molding, leaving 5 cm of margin on the sides. The resulting area is divided in half, that is, an even cut is made in the middle of the pattern. After that, the baguette is alternately cut in the miter box or by eye.

Some useful tips to help you get the job done:

  1. It's worth practicing on a short cut before you start on a fine cut.
  2. The baguette should be cut with front side, then the cut irregularities will remain on the reverse side.
  3. The saw cut can be carefully trimmed with a knife or sandpaper.
  4. Cut the plinth on a hard, flat surface.
  5. If a miter box is used, for convenience it can be fixed to the work surface with self-tapping screws.
  6. If the result is unsatisfactory and the gaps at the joints are still visible, they can be carefully puttied.

If the corners in the room being repaired are even, you can buy ready-made corners for the selected type of baguette and completely avoid the stage with cutting corners.

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

However, naturally joined planks usually look more harmonious. Yes, and spend additional details in this case you don't have to. 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

Important: When trimming, remember that when making an internal corner, the edge of the plinth adjacent to the wall should be longer than that adjacent to the ceiling. When finishing the same external - vice versa.
  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).

Advice: You can cut polystyrene strips with a knife. However, be sure to sharpen it properly. Otherwise, the material at the ends will simply crumble.

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

Important: Only the inner corner can be sealed with putty or sealant. The outer should be adjusted as carefully as possible. It will simply be impossible to remove even a small gap in the future imperceptibly here. Especially when the plinth is wide.

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 pruning floor plinth the procedure is approximately the same as with the ceiling image. 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

Advice: An end at an angle of 45g should be done not only in order to cut elements in the corners, but also to make joints on the wall itself. In this case, the connections will not be as noticeable.

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.

And adjacent walls.

It is very convenient for them to mask the joints on the walls and on the ceiling, especially if they have different structure and not done very well.

Its presence makes the design of the room clearer and more complete.

Often people ask themselves the question: how to competently and accurately finish the room with a ceiling plinth?

This is especially true for those cases when the owner of the house prefers repairs made by himself.

To do this correctly, it is important to strictly observe existing recommendations and finishing rules. And then the result will please you.

There are no difficulties in fastening the fillet (this is the name of this element): in fact, all types of products are attached to reliable glue.

They lend themselves well to processing with a special fine-toothed hacksaw. You can also use a reliable canvas for metal. So how do you cut the ceiling plinth correctly?

Finished factory corners

Note that each master has the opportunity not to pore over the exact cutting and fitting of corners.

In the hardware store, you can purchase a factory-made corner element into which the prepared skirting edges are easily inserted.

It is enough to measure the required length of the workpiece, and cut it at a right angle.

All defects and flaws will be hidden by this special element. But so convenient way it is not always possible to use it, since the standard sizes of such factory corners can differ markedly from the size of the baseboard itself.

Such corners will stand out for their disproportion, and it will not look very neat. But if the design of the room and the size of the blanks allow you to use this method, then you should not neglect it.

For those who have to use one of the ways to trim the ceiling plinth, the following tips will come in handy.

Fillet cutting

Pruning using a miter box

How to evenly cut the corner of the ceiling plinth with it?


A miter box is a simple tool used by carpenters. With it, you can cut any workpiece at the right angle.

It is usually a wooden, metal or plastic tray, on which special vertical slots are made for cutting at an angle of 45 ° and 90 °.

There are complicated designs, on which, in addition to the named corners, there is also a hole for making a 60-degree cut.

For professional work, a special miter box is produced. Its rotary mechanism allows you to fix the cutting blade in relation to the workpiece at any given angle.

Inner corner


The prepared one is applied to the ceiling, the desired length is set aside.

Then this same bar is inserted into the miter box exactly as it will be located on the ceiling. It must be pressed against the far wall of the device. In this position, the plinth is held with the left hand.

The hacksaw blade should be in such a position that its angle is 45 degrees, and the handle would be as close as possible to the hand. Trying to avoid pressure on the saw, carefully cut the workpiece.

The position of the hacksaw is similar to the previous procedure - its handle approaches the hand at an angle of 45 degrees. The plinth is cut off.

Then the finished, already cut strips are joined - the accuracy of the fit is checked. It is believed that for better orientation, when making an internal corner, it is better to start cutting from the front of the product. The cut points usually still have to be adjusted with a file.

outside corner

It is most correct to observe the dimensions more accurately, first begin to mark the inner corner, and only after that proceed to the outer one.

Otherwise, it may happen that the entire length of the plank is not enough.

The bar is applied to the ceiling, basting is made in size. Holding with the left hand, the ceiling plinth is pressed against the nearest wall, the handle of the hacksaw approaches the hand. The workpiece is cut off.

The striker is pressed against the nearest wall, while it is held with the right hand. The hacksaw blade should be at an angle of 45 °, the handle of the tool approaches the hand of the master. A piece of the workpiece is cut off, the corner is neatly joined.

Such processing by the edge of parts with the help of must is good in cases where the angle between the walls is even and straight (90 °).

If its performance leaves much to be desired, then it is worth using a different method.

How to cut a ceiling plinth without a miter box?

Ceiling markings

The method with markings on the ceiling allows you to cut the corner accurately and evenly. He has one drawback - the bar is rather inconvenient to hold on weight during the procedure.

In all other respects, using this method, you will be able to outline the angle for cutting even more accurately than others.

When the skirting board is applied to the intended installation site, all dimensional deviations and inaccuracies are noticeable and immediately taken into account.

cutting corner

First you need to take a couple of blanks, then cut them at a right angle. Abutting the end of the plank against the perpendicular wall, we apply one plank. We draw a line on the ceiling along the contour of the plinth. We remove the first bar, then, in the same way, resting the butt against the wall, we apply the reciprocal bar. In the same way, we mark a line along the contour.

The intersection point of the two separate lines is the mark at which the workpiece is cut. Each plank is applied to the surface again, on both the point of the future cut is marked. From the found point to the other edge of the plinth strip, draw a line. We cut the skirting boards according to the outlines made earlier, carefully dock them, and place them in the place of their installation.

This method allows you to more accurately handle internal corners.

How to make a miter box template with your own hands


If you do not have a miter box, it is not necessary to buy a tool for one-time use. A template with similar functions can be made independently.

To do this, the desired cut angles are applied to wood, paper or cardboard.

Then you need to draw a pair of parallel lines, find the center, and then use a protractor to measure the angles of any given value.

This method is especially convenient because, using it, you can set aside an angle of any size, even more than a straight line.

The method of processing the plinth blank using homemade tool practically indistinguishable from the original. The bar is pressed against one of the parallels, after which the hacksaw is set at the required angle and cut off.

Remember that before cutting the corners of the workpiece, be sure to check the angle between the walls! To do this, use a protractor and a corner.

How to cut a ceiling plinth correctly. Important little things

The measurements needed to trim the skirting board to the ceiling should be done in a special way.
To define and mark an inside corner, the length must be measured from the corner itself. To mark the outer corner, it must be taken into account that the plinth will protrude into the interior of the room at a distance that is equal to its width.


 It is not advisable to fix the skirting strips until their exact location is tried on and the mating skirting board is cut off.
Only after the ideal convergence in the corner of both strikers, you can begin their installation and fastening. If work is carried out with polyurethane or wooden skirting boards, defects and flaws can be corrected with a nail file or file. To fit the product