How to cut a corner joint of a ceiling plinth

How to cut a corner joint of a ceiling plinth

Outside corners

corner, joint, ceiling, plinth

How to cut the outer corner of a ceiling plinth

How to cut the outer corner of the ceiling plinth is a question not much different from the one already discussed. Such corners in living quarters come across a little less often, but the technology is not at all more complicated, although at first such a need may mislead you.

Thinking logically. it always helps. For error-free orientation of the fillet on the miter box, see what angle remains on the desired part of it. If it is dull, then you cut the inner corner again, if it is sharp, then everything is in order.

Work progress and details

  • There are several different options, but the main thing is, perhaps, the simultaneous cutting of two elements at once. This can be seen well if you look on the net how to cut a corner on a ceiling plinth. video. Most of the workshops show just this way of cutting a corner. What is the essence?
  • To increase the speed and quality of work, you can use a special carpenter’s tool called a miter box. It is precisely this device that is intended for cutting profiles at various angles. For now, we are interested in the right angle of joining the walls, therefore, we are considering the part where the cut is made at an angle of 45 degrees.

How to cut the inner corner of a ceiling plinth: washed down at 45 degrees on a miter box

  • Since one skirting board is sawn in a strictly mirror image in relation to the other, it is very important to maintain an exact 45 ° angle when sawing at the same time. It is necessary to fold two skirting boards with the inner side to each other, put them in the miter box and fasten tightly. After that, a cut is made with a fine-toothed hacksaw. Without a miter box, the corner will surely “run away”!

But this method (how to cut the outer or inner corner of the ceiling plinth) is intended exclusively for aligned walls and ceilings! Since our builders are surprisingly consistent not to observe the perpendicularity of surfaces, and even to leave local irregularities on the ceiling and walls, often the miter box does not guarantee at all that you will get an even and perfectly docked interface. So for now we will consider only “ideal” options, when everything is smooth and smooth.

On the miter box, you can cut the skirting boards separately, and for an inexperienced craftsman, this approach will even be much more correct.

LED lighting can be mounted behind them. The element is easy to install, but not everyone can arrange it beautifully at the corner joints. The question arises: how to cut corners on the ceiling plinth correctly, and the first time?

There is nothing complicated in this process. you just need to carefully measure out the parts, observe cutting technology and use good tools. We will show you how to cut corners on skirting boards accurately, quickly and beautifully.

How to cut a corner of a ceiling plinth. expert advice

Forming an exact angle is not so easy

Skirting boards around the perimeter of the ceiling are the finishing touch that adds integrity to the wall and ceiling decoration of the room. The detail allows you to hide technical gaps that are left specifically for the thermal expansion of finishing materials.

Internal corners

  • To cut the correct inner corner, insert the skirting board into the miter box, press the edge down at the right 45-degree notch and cut the edge off with a hacksaw.
  • Remember that we mean a cut of two mirror-folded elements at once. Pay attention: if the long section of the skirting board is left, then the corner must be made left-sided, and vice versa. Two simultaneously cut corners provide precision control.
  • With the right work and with ideal walls with an angle of exactly 90 °, there will be no problems with joining. If, nevertheless, there are irregularities, and the planes of the cut do not coincide, then you need to measure everything in place and additionally level the joint with a sharp construction knife. This is completely easy if the material is not wood.

The main

The technology in question is applicable to all types of skirting boards.

Modern materials are made from:

  • Styrofoam and expanded polystyrene;
  • PVC;
  • Polyurethane;
  • Pressed wood shavings. MDF;

Wooden skirting board

  • Solid wood or glued wood;
  • From plaster.

Their low cost, low weight, ease of installation ensured immense popularity and demand, especially since you do not need to call professionals to work, you can do everything yourself. But the stumbling block is precisely the joints at an angle, which, for non-specialists, turn out to be uneven, loose and, to put it mildly, crooked.

Preparatory work

Before starting work, you should prepare the material with which you will have to work. Fillets are made of:

  • wood;
  • gypsum;
  • foam;
  • polyurethane;
  • Pvc.

Based on this, you need to prepare the tools. Depending on the material, a device is selected that will easily cut off the part. Also, there should be glue for attaching the skirting board and a sealant to mask minor defects.

There is also special fittings for decorating corners. they are attached to the joints at the corners. Its benefit is that it can hide some of the irregularities of the work.

The higher the ceilings in the room, the wider the border should be. Otherwise, he will simply “get lost”.
Then, the surface to which the plinth will be attached is prepared. it must be dry, even and clean.

How to make an outer corner

Just as the mowing line was outlined for trimming the inner corners, the outer corners must be done. Attach the planks to the wall at the protruding corner. On the ceiling, mark a line along the length of one baguette, then a line along the other. You will get the intersection point, which should be marked on the upper parts of the skirting board. Draw the line from it to the lower edge of the workpiece (make two sides in this way).

Then work with the marked lines of the outer corner of the baguette as follows:

  • Place the workpiece in the tray, pressing firmly against the front wall of the device and holding it with your hand during operation.
  • Set the cutting tool at 45 degrees to the workpiece and carefully cut off the corner.
  • Install the counter plinth in the same way, pressing it against the front wall of the device.
  • Cut at 45 degrees, but in such a way that the angle is directly opposite to the already cut.

After all the corners have been cut off, it is required to dock the fillets together, checking for defects in the work. If there are any, remove them by carefully cutting with a knife. As for wooden curbs, the irregularities on them must be removed with a file.

Skirting Corner Tools

Initially, you should decide what exactly to cut. If this is a light material. polystyrene, for example, polyurethane, etc., then a clerical or well-sharpened knife will do. But the most versatile tool for cutting curbs from any material is a metal hacksaw. She cuts almost everything, smoothly and quickly.

A ruler and a chalk or pencil will also come in handy, and when manually cutting a plinth, an angular ruler is required.

How to make an inner corner

  • Press the fillet to the inner corner in the way it will be glued.
  • With a pencil, draw the fishing line along the upper edge of the part (on the ceiling) towards the corner. Next, take the second one and press it in the same way to the second side of the wall.
  • Draw the line with a pencil in the same direction towards the corner. As a result, you get the intersection of two lines on the ceiling.
  • Then, reattach the skirting board on one side in the same way and mark the intersection of the lines on it. Do the same with the second baguette.
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As a result, if you run the line from the mark to the bottom edge of the fillet, you get a flat line at an angle of 45 degrees.
To correctly cut the inner corner of the ceiling molding, follow these steps:

  • Transfer the workpiece to the device in the same position as it will be attached to the surface and press it very tightly against the back of the tool.
  • Put the hacksaw in the slots at 45 degrees to the workpiece, which must be held by hand during work so that it does not shift.
  • Carefully cut the baguette, controlling the pressure of the tool, so as not to damage anything.
  • Another piece of plinth should also be installed against the back of the device, also pressing and holding it tightly during operation, avoiding displacement.
  • Set the hacksaw at 45 degrees to the workpiece so that it is opposite the first trimmed border.
  • Cut off. Done!

It is imperative to cut off the skirting board from the front of the product so that the line is even and clear.

How to cut corners on a skirting board

The ceiling plinth gives an aesthetic appearance to the room after renovation. It hides all minor construction defects, gaps and crevices. Since it runs along the entire perimeter of the room, you need to be able to dock it at the corners. This is not difficult and is done in several simple ways.

How to cut a baguette in the corner of a wall using a machine

A miter box is a U-shaped tray with sides, in which slots are made for the cutting tool. There can be three or more slots, depending on its purpose. The slots are made in such a way as to cut parts from 15 to 135 degrees. In this case, I am interested in a simple tool with a minimum set of slots for cutting at angles of 45-90 degrees.

The tray provides a ready-made template for cutting at different angles. It can be used to trim both internal and external protrusions. In its absence, you can make it yourself. This will require four planks, even and preferably smooth. Knock the tray out of them and proceed to the holes for cutting. Mark them at 45-90 degrees, cut with a thick cutting object or circular saw.

  • The ceiling plinth is applied and cut on the near inner side of the tray.
  • The molding is installed in the same way as it is planned for fixing to the ceiling.
  • Cutting the workpiece should only be at 90 degrees.
  • The side that will be glued to the ceiling must be firmly pressed against the bottom of the tray during operation.
  • The border is cut here strictly on the front side.
  • For each material from which the skirting board is made, you need to choose the right cutting tool.
  • It is best to start cutting fillets from the inner corner, otherwise the part may turn out to be shorter and not fill the entire length of the ceiling.

How to cut the correct corner of the ceiling plinth with your own hands

You only need to cut the corners on the baguettes at an angle of forty-five degrees, which will help to combine both the outer and inner parts of the material. This can be done both through a slotted tray or in its absence by applying the necessary markings on the ceiling or on paper.

To dock fillets with a decorative corner, you need to place the corner exactly in the center between the walls to the ceiling. Attach to it on both sides of the baseboard and cut them a little with a clerical knife until they fit perfectly together.

The problem is that the standard sizes of such corners do not always fit the size of the curb, in which case it is better to cut the corner yourself.

How to cut a corner of a ceiling plinth

In this article, we will tell you how to properly cut the outer and inner corner of the ceiling plinth with your own hands. This can be done without using special tools, but it should be understood that such work requires care and accuracy.

Miter box cutting: outside corner

Most often, when installing ceiling plinths, home craftsmen are interested in how to correctly arrange the interior corners in the room. Cutting outside corners is done less often, but with a certain layout of the walls, it is necessary. Consider how to correctly make an internal fillet using a special tool (miter box).

First you need to purchase a miter box. This tool is a tray in which the part is fixed and trimmed. In order to measure the length of the required product, you need to attach it to the ceiling. Next, you need to install the skirting board in the miter box. Its location should correspond to the position that it will occupy on the ceiling.

Miter box

How to properly cut the inner corner of the ceiling plinth is a difficult question, which can be answered by the corresponding photos. Experts recommend that you study them, and only then start work.

After you have made sure that the product is positioned correctly in the tool, you can start cutting itself. The hacksaw must have a certain angle, namely 45 degrees. During work, it is not recommended to apply strong pressure on the cutting tool, as the surface of the miter box can be damaged. Then the adjacent fillet is trimmed, which is done in a “mirror” way.

Cutting corners without a miter box

Not everyone has the opportunity to purchase a professional cutting tool. And the expediency of such a purchase is rarely justified, since spending money on a miter box that will be used only once is not the best solution. You can trim fillets without it. There are several alternative ways to get the right angles.

Manual template preparation

The first and most common option for trimming fillets without using a miter box takes into account the use of a paper stencil. To implement this method, you will need to prepare the following tools and materials:

  • protractor;
  • pencil;
  • cardboard.

We apply a plinth to the cardboard blank and cut it off with a hacksaw. Some craftsmen make markings on the product itself. In this case, there is no need to use the template.

How to cut crown moulding angles flat (& adding rope lighting)


The second option is to make your own cutting tool. To do this, you will need to prepare 3 boards that have the same dimensions (50 by 15 cm). Next, you need to dock them together. The two side boards, which are walls, must be fixed to the cross board at right angles. In the next step, you need to mark an angle on the walls of 45 degrees. You can take the necessary measurements using a simple square. The ready-made tool will allow you to arrange all the corners in the room in a short period of time.

The third method takes into account the use of improvised means. In this case, there is no need to construct a template. It can be replaced by a regular table, which will need to be moved to the wall. It is necessary to attach a fillet to the corner formed in this way, and then mark it. At the end, the part is cut with a hacksaw or a construction knife.

Which skirting board is better to choose?

There are many varieties of fillets, which differ in the following characteristics: material of manufacture, shape, and dimensions. When choosing a ceiling plinth, it is recommended to focus on all these factors, but the material of manufacture is the key point that determines the complexity of processing.

The highest quality polyurethane fillets are considered. However, they are the least suitable for cutting corners, since the material is highly elastic. The easiest way to cut the inner or outer corner of a polyurethane skirting board is to use a miter box. The main disadvantage of such products is their poor resistance to high temperatures, therefore they are prohibited from using in the kitchen.


Products made from other materials also have their drawbacks. Ceiling skirting boards made of PVC are prone to dents. In turn, polystyrene foam products break easily, so they must be handled very carefully.

So which skirting board should you choose? There is no definite answer to this question. Experts recommend focusing on the individual characteristics of the premises and the budget, calculated in advance.

Miter box cutting: inner corner

The easiest way to get the correct inside corner is to use a professional tool. Of course, such work can be done without a miter box, however, in this case, more effort will be required. Consider the sequence of actions for cutting an inner corner using a miter box.

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The first thing to do is determine the distance from the outside corner to the nearest wall. Next, you need to mark the plinth, thereby preparing it for cutting. On the outside of the fillet, you need to draw a fishing line along the length of the measurement. It is worth considering that in this case, the upper part of the die should protrude slightly outward.

Then you can start trimming. For this, the skirting board is placed in the cutting tool and firmly pressed against the wall. After trimming the first part, you can start processing the counter element.

Cutting an oblique angle

Walls do not always have a perfectly flat surface. In this case, it is very difficult to carry out the installation of ceiling plinths, since few people know what exactly needs to be done in such a situation. The most preferable solution to cope with this problem is to mark the corner in place.

For marking, you need to prepare a regular pencil. Before starting work, it is recommended that you familiarize yourself with the video, which describes the nuances of cutting fillets. The first step is to attach the plinth to two walls (in turn). Along its edge it is necessary to draw a fishing line, which is marked on the ceiling. The point that corresponds to the intersection of the lines is marked with a pencil.

In the horse, it is necessary to connect the point to the lower edge of the fillet. Next, trimming is done. It is recommended to use a ruler during work. If the work was done correctly, then the resulting angle will repeat the relief of the wall.

In order to cut the correct corner of the ceiling plinth with your own hands, it is not necessary to use a professional tool. There are other methods that do not require anything complicated from the master. In such work, the most important point is the correct markup. Before you start cutting, be sure to make sure that you are doing everything correctly.

Write to us in the comments:

What advice can you give for cutting the corners of ceiling plinths??

And if the angle is not even?

In Soviet houses, the walls are often uneven, respectively, and the corners. We will find out what to do in this case, because the miter box will not help here.

Installing PVC skirting boards is easy. You just need to correctly measure the angle. Often a special tool is used for this. a protractor. If it is not there, you can make a template out of paper, and then use a protractor. Using a self-made template, you can cut out the required future inner or outer corner.

Features of the ceiling plinth

Ceiling plinth. one of the important decorative elements. It allows you to hide various errors in the repair. Fix it after the wallpaper is glued in the room. Ceiling skirting boards are located at the junction of the ceiling and walls.

You should take your skirting board seriously. The correct model and size of the skirting board can visually increase the space. Now let’s consider how to connect the ceiling plinth in the corners correctly.

Outside corner of ceiling plinth

Some rooms have outside corners. They are quite common, so you need to know how to make a corner. Styrofoam ceiling plinth is most often used for decoration of apartments. It’s easy to work with.

To correctly cut the baguette, you must correctly draw the marks on it. To do this, attach the element to the ceiling and mark the cut point on the baguette.

After that, we put the element in the wort and cut it off at an angle of 45 0. How to make a corner? A foam ceiling plinth for the outer corner is made in the same way as for the inner corner. If a large part of the element is located on the left side, it must be cut off according to the left designation. The second element is made according to the same principle.

After trimming the elements, you should make sure that there are no errors. How to adjust the angle of the skirting board? You just need to attach both parts and determine if they fit perfectly together.?

How to properly trim a baguette?

Modern manufacturers offer a wide range of ceiling plinths. They are made from plastic, foam, wood, polyurethane foam, gypsum.

Wooden skirting boards look more aristocratic, but it is quite difficult to work with them. The same applies to plaster.

By the way, ceiling plinths are also called baguettes and friezes.

Pruning may require a variety of tools that can be found in every home. Styrofoam strips can be easily cut with a knife or scissors. A wood saw is used for trimming wooden skirting boards. A hacksaw for metal is useful for trimming a plastic baguette.

How to fit the ceiling plinth in the corners? How to cut a corner on a skirting board

There is no person who, at least once in his life, is not faced with the need for repair. Some people prefer to accumulate a certain amount of funds and entrust the work to specialists. Others, on the other hand, want to do all the work on their own. In this case, it will be useful to get acquainted with the technology of performing some work, in order to then apply the knowledge in practice.

Today we will talk about an important component of any repair. the installation of a ceiling plinth.

The most difficult thing in performing this type of work is the design of the corner. Here you need to carefully and accurately join the planks, because the appearance of the decor may suffer. Not sure how to fit the ceiling plinth in the corners? Not confident in your abilities? Then you can use ready-made blanks, which are installed in the corners.

But the ceiling elements connected together look more harmonious. And on special corners, you can save additional money. So, how to dock the ceiling plinth in the corners correctly, how to properly process the seam?

Bonding prepared parts

Ready-made parts are installed on liquid nails or glue. It is necessary to apply the adhesive to the back of the material. Make sure that the glue is in those places that are in contact with the ceiling and wall.

How to join the ceiling plinth in the corners? Yes, just like the rest. The glue-coated strip must be attached to a specific place between the wall and the ceiling. Then, not too hard, gently press the element against the wall surface. Experts recommend performing this procedure with the edge of the palm. This method is definitely recommended to use for skirting boards made of foam. After all, dents quickly form on the surface of this material.

Be aware that glue may come out at the edges as the skirting board is connected in the corners. It should be removed immediately with a tissue or clean cloth. All parts can be fixed with masking tape for a while until the glue dries.

After the glue has dried, the paper tape must be carefully removed. Fill the gaps at the joints between the planks with a sealant or putty. If necessary, the skirting board can be painted in any color.

Special corner pieces

If you are not sure how to make a corner on a skirting board, you can use ready-made corner pieces. They come in different sizes. Often, designers use ready-made corner pieces larger than the entire perimeter of the baguette. In this case, the corners of the room stand out especially. The trimming of the ceiling strips for connection with these elements should also be done using a miter box. If this device is absent, then the baguette can be trimmed by yourself. Cutting must be at right angles.

If there is no miter box

What if there is no miter box at hand? It is very easy to fit the strips without using a special device. There are 2 ways to solve this problem quickly:

  • independently build an imitation of a miter box;
  • mark the required angle on the wall.

If you don’t have a special tool at hand, then how to cut a corner on a ceiling plinth? It’s simple, because you can build this device yourself.

Making a miter box with your own hands:

  • Draw 2 parallel mowing lines on a smooth plywood sheet.
  • We put a point on one of them. Using a protractor, connect it to the opposite line at an angle of 45 0. Draw the line to the left.
  • From the first point at a distance of 10 cm we put the second point.
  • We connect it at an angle of 45 0 with the second line drawn to the right.
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The homemade miter box is ready. It is enough to attach the lower edge of the right ceiling element on the right side to the mowing line closest to you from the wrong side and cut along the mowing line. The same should be done with the left bar, applying it on the left side.

In the second case, the procedure is as follows:

  • The left lane is pressed tightly against the ceiling.
  • A line is drawn directly along the ceiling along the upper edge of the ceiling plinth.
  • A second ceiling element is attached to the ceiling and a second line is drawn along the upper edge.
  • At the intersection of these lines, a mark is placed on the left element.
  • Attach the right element and also mark it at the intersection.
  • On each strip, markings are connected to the end of the lower edge of the plinth. On the received mowing line, the plinth is cut at an angle.

This method allows you to neatly cut a corner on the ceiling plinth.

Now let’s find out how to connect the planks correctly.

Remember that pvc ceiling skirting boards can be cut with a knife. But first it should be sharpened well. Otherwise, the edge of the baguette will crumble. For such purposes, a special construction knife is often used.

DIY ceiling plinth corner

Before gluing, be sure to try on the skirting board to check the accuracy of joining the corners.

To begin with, we take a part of the skirting board, which will be used as the right side of the corner, and apply it to the joint in close contact with the corner and mark the line on the ceiling along which the skirting board adjoins it. We put this part down, and try on the second plank of the created corner (left), which we again apply to the joint and mark out the line on the left side, as we did on the right. The crossed out mowing lines must intersect and the crossing point must be shifted one by one to the right and then to the left plinth of the corner. On one of them, for example, on the left, we cut off the angle that is formed between three points. two corners directly on the plinth and the intersection cutter line transferred from the ceiling. And on the second, right, we cut off a similar corner, but we do it by slightly tilting it, so that the back of the material remains intact. Now you can attach the parts to the joint and, if there are no flaws, gaps, for example, hang them on the glue. If there are still defects, they need to be corrected somewhat by slightly cutting or leveling the butt sides of the skirting boards that are combined in the corner.

Finishing the outer corner of the room, you need to alternately mark out the outer edges of the applied plank on the ceiling, mark the intersection point and transfer it to each plinth. Cut the corners again in different ways. The left one is approximately 45 degrees so that the cut runs parallel to both the front and rear walls of the skirting board. And we cut off the right part of the joint being created, leaving the whole front wall of the plinth intact. Again, before putting the cut out parts on the glue, it is recommended to try on dry parts of the ceiling trim in order to be able to fix something.

Ceiling plinth corners

To cut out the inner corners, the plinth must be inserted into the miter box, press its edge a little further than the slot along the right 45-degree mark and cut off with a hacksaw blade.

The only concern that a person who begins to install a ceiling plinth may face is cutting and cutting out the corner joints of the plinth on the ceiling. The problem lies in the fact that the joint of the corners of the skirting board should be measured approximately by eye, since the ceiling fillet is attached to the surface at an angle of 38-45 degrees in relation to the base. In this regard, at the junction points, a 45-degree cut will be very problematic.

There are several ways to successfully cope with the task. For example, use the tool of locksmiths in your work. a construction miter box. Its function, after all, is to cut corners at an angle.

In order to properly cut the inner corner, you will need to cut each of the butt elements in turn at an angle of 45 degrees.

The ceiling plinth is inserted into the miter box, with the longest part on the left. The corner is cut at the left 45 degree mark. The right part of the corner must be cut off in the same way as the left.

But, if the first one is usually cut, then the adjacent one is performed in an absolutely mirror technique. The outer corner is done in a similar way. The only difference is that the cut is performed “inside out”. This is how this process looks simple. All that remains is to glue the strips to the place provided for them. However, it’s too early to rejoice, since this option for cutting corners is suitable only in those rooms where the wall, ceilings and floors are strictly perpendicular to each other, that is, there is an angle of 45 degrees between the joint wall and the ceiling. Only a rare room has such evenness.

You can successfully and correctly cope with the task and cut the corners of the ceiling plinth using even simpler tools than a miter box. To make a fillet with our own hands, we need:

  • ruler;
  • simple pencil;
  • stationery knife.

The miter box is a tray with slots at a certain angle. To cut plastic skirting boards, it is enough to use a miter box with angles of 45 and 90 degrees.

At the same time, the clerical knife must be very sharp, because the porous, but at the same time, rigid and durable structure of the ceiling plinth is difficult to cut. And if you use a dull blade to make a cut, it will turn out to be uneven. That, subsequently, will affect the inability to dock it correctly with the adjoining part. In case you do not have a clerical knife or it is out of order, you can replace it with a well-sharpened kitchen knife. As for conventional gear saws, they are not recommended for working with polystyrene, as they can damage the appearance of the finishing material.

Ceiling plinth

Ceiling skirting boards are widely used today. It is made of lightweight, harmless to human health, polystyrene, which can be easily mounted to the ceiling or wall. In addition to the fact that this building material is easy to use and environmentally friendly, it is also very inexpensive.

Trimming the corner of the skirting board for the ceiling

Any construction work sooner or later passes into the stage of finishing or decorative. If it comes to walls, then they resort, in most cases, to pasting them with wallpaper, the ceiling can be painted, made stretched, or suspended again with wallpaper. But as for the joints between the wall and the ceiling. They also need finishing, because they often look impartial. At this particular moment, when both the walls and the ceiling are already finished, it is important to choose a fillet that will beautifully cover the junction. In its capacity, it is customary to use a ceiling plinth, which decorates both the ceiling and the upper part of the wall. How to glue an even plinth, usually no one has any questions, but not everyone knows how to cut the corner of the ceiling plinth correctly.

To cut the outer corners of the plinth into fillets, use 45 degree slots

Features of working with a ceiling plinth

The work of gluing the ceiling plinth, especially if you need to do it yourself and correctly, will be very long and exhausting. It requires tremendous perseverance and attention, so if you do not have the desire to sit on your own for an hour over every corner of the room you are finishing, then it is better to turn to professionals for help. If, after you have already glued everything, you suddenly notice a small gap at the junction, do not be sad. Since it can be masked with grout in the same color as your material.