How to cut a ceiling plinth inside corner

How to file a ceiling plinth: methods of cutting corners with a wire cutter, a drawing on the table and marking on the ceiling

Classification of baguettes is carried out by the material of manufacture:

  • Gypsum. The oldest representatives of ceiling plinths. Special molds were used to cast them. Various mortars were used as an adhesive mounting compound. To gypsum baguettes also applies the name “battens”. In modern construction, they are used very rarely due to the high cost and inconvenience of installation. In addition, there are more reliable and inexpensive imitations of gypsum fillets.
  • Polystyrene (polyurethane). The most common type of ceiling plinth. For products of this type are characterized by low cost, excellent aesthetic characteristics, ease of installation and the richness of the range in terms of external design. The width of polystyrene skirting boards varies from 5 to 250 mm. They can be used in any type of room, complementing the various interior styles.
  • Wooden. Expensive and quite bulky baguettes, which are mainly used to decorate wooden houses with the appropriate interior. To install wooden planks, in addition to glue, often use screws and nails.
  • Plastic. An excellent option for bathrooms and other rooms with high humidity. Mounting is carried out on a special moisture-resistant adhesive or countersunk self-tapping screws.

When installing the above products, you need to know how to cut the ceiling plinth. This does not apply to plastic products, which are equipped with special angle adapters.

What tool do I need?

Carrying out the installation of the ceiling plinth, it is necessary to trim it to size or in the corners.

ceiling, plinth, corner

To cut the corner of the ceiling plinth, as a rule, the following tools will help:

  • Wood hacksaw. To be used on wooden materials.
  • Metal saw. This tool is very handy for cutting plastic, styrofoam and plastic fascia boards. The result is a fairly clean, burr-free cut. A compound saw is handy when working with saws.
  • A office knife. It can be used to cut foam baguettes without the need for special tools. The main thing is that the knife should be well sharpened and have a thin and smooth blade. If you act carefully, the cut is smooth, without any dents.

It is important not to apply too much force when using the saw, or the baseboard will crumple. It is best to practice on a scrap piece first. This will allow for beautiful pieces in the future.

Chisel for baseboards: basic rules of use

Everyone will be able to understand how to properly cut the corners of the ceiling plinth. For the process to go smoothly, you should familiarize yourself in advance with the basic ways to create beautiful and even blanks.

The main rule of work is to observe the slope of the corners. If the baseboard is fixed to the right, the corner will be cut from the left side, and vice versa.

The chisel is a handy tool for fast processing of blanks

Polyurethane ceiling plinth: what is it, advantages and disadvantages, what it consists of, what kinds there are, how to choose, step-by-step installation of a molding, coloring, restoration methods, the average cost. in our publication.

What is a crossbow, how to use this tool

Beginning repairs in the apartment, many people wonder how to cut the corners of the skirting boards on the ceiling. It is important to familiarize yourself with the rules for using the equipment. A chisel is a device consisting of walls with side cuts and a bottom. The detail requiring processing is laid out in the middle and corrected with a file.

The main question is what to cut the plastic skirting board with. The result should be a perfectly even angle of 45 degrees. Sawing the tack is quick and easy if you use a ready-made chair, or make it from existing materials. The tool for reliability is placed on the floor and held by the left hand. The hacksaw should be placed in one of the oblique lines, depending on what corner should turn out. right or left.

Beginning craftsmen are better to fix the jig on the table so it will not come off during the work

ceiling, plinth, corner
  • A pencil draws a thin, barely visible line for the trimmer;
  • Put the side of the tack into the jig and determine the angle of cut;
  • The hacksaw must pass exactly along the marked line;
  • The second fillet is rotated and make the cut on the other side, so that when the two parts are combined, an angle is formed.

Before gluing on the ceiling, the baseboards should be treated with sandpaper.

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What tools can be used to cut corners

Cutting a skirting board (outer corner) with explanations will be a good help for the novice craftsman.

How to trim a baseboard without a plough

Suppose you urgently need to glue a ceiling plinth.

How to make a corner without a joiner? It is possible, although you will have to spend more time. Proceed as follows.

  • Both parts of the skirting board are first cut at right angles.
  • The position of the elements is marked on the wall and a trimmer line is applied to connect them. As a result we will see two intersecting lines. The point of their intersection is projected directly onto the baseboard parts.
  • The skirting board is placed against the ceiling and a cut trimmer line is drawn from one edge to the other.
  • Parts are finished off with a utility knife or a construction knife.
  • On a paper depicts a virtual jig with the drawing of lines at the right angles. The baseboard tacks are attached to the plinth and cut (with the blade of the knife should be vertical).

How to cut the corner of the ceiling plinth with Комментарии и мнения владельцев from a specialist will help deal with this problem.

Advice! Since far from always has a perfect shape inner or outer corner, the ceiling plinth will have noticeable gaps in the joints.

To make them less noticeable, before gluing the baseboard on its ends should be applied gypsum putty. After joining the elements, the extra putty is removed with a rubber spatula. All the gaps will be filled and the joint will be less noticeable.

It is not easy to glue and properly dock the tacks with the pattern. What do you do in a case like this?? The answer will prompt video.

How to correctly join the baseboards in the corners

Corner corners that are properly shaped look attractive

As a rule, the design of corners, both internal and external, takes the bulk of the time. Due to the fact that the ceiling plinths are characterized by a very complex shape, then simply take and cut them at the right angle is not so easy. It is necessary to cut so that they dock in the corner without noticeable gaps. To make the corners literally perfect, there are several ways.

Use of a power drill

The mortar as a tool is suitable if the room corners are joined at 90 degrees. The tool is a “U” shaped trough, upside down. On the walls of the chute, cuts are made at different angles. To evenly cut the decorative element, it is placed inside the gutter, then the saw cuts the element at the desired angle.

This is what a chair looks like. Can be plastic, wooden or metal

Because of the complex shape of the skirting boards, they must be placed in the groove so that they simultaneously press against two surfaces. the bottom and the side. Depending on which corner is formed, the baseboard is pressed to the bottom and side, or the opposite, or the near surface.

As a rule, corners are trimmed at an angle of 45 degrees. First of all, it is necessary to determine the length of the skirting board by placing certain marks on it. After that, the element of the decor is placed in the jig so that the mark corresponds to the maximum length of the element, and then the element is cut. It is also necessary to remember that the left part of the baseboard is placed on the left side of the chair, and the right. on the right.

How to cut a corner on the ceiling plinth: properly install it in the jigsaw

Ceiling baseboards are attached to the ceiling with one side and the other to the wall, so the part that is attached to the ceiling is laid on the bottom surface of the chair. It is very important to hold the plinth firmly and reliably while cutting, because otherwise the surface of the cut is unlikely to be flat and smooth. By cutting off the left and right side in this way, you get either an inside corner or an outside corner.

How to cut a corner on the ceiling plinth: properly install it in the jigsaw

First, both parts are glued to the fixing point without glue, so that you can check the quality of the work. If the corners do not match, they are adjusted with a suitable tool. The advantage of polystyrene ceiling plinths is that small errors can be hidden by covering them with putty.

After a final check, a thin layer of special glue is applied to both surfaces of the skirting board.

ceiling, plinth, corner

How to make the inside corner of the ceiling plinth using a wire cutter

The technique of fitting ceiling plinths in the corners is almost the same, regardless of which corner it is, internal or external. After applying the glue, the skirting board is pressed onto both the wall and the ceiling. Naturally, the effort must be controlled, especially if the decor elements are made of foam plastic. Not only that, you need to work with gloves so as not to smear the surface of the baseboards, which easily gets dirty.


Despite the fact that it is not so difficult to glue ceiling skirting boards, there are tips that you should heed:

  • The walls must be clean and dust free. Any dirt will reduce the adhesion properties of the base.
  • The underside of the skirting boards is better to make rough, as the smooth surface has a low quality of adhesion to the surface.
  • It is important to choose a quality glue with a good fixation, especially for heavy baguettes. Also, do not use solvent adhesive for polystyrene skirting boards, such a composition can ruin the material.
  • After attaching the ceiling skirting boards must not allow draughts in the room within a day, the glue must be well cured.


Trimming ceiling plinths without a joiner

The walls in the room are not always flat, they may not be between 90° to each other. How to cut the ceiling plinth in such a case? You can use a simple marking on the ceiling.

  • Cut the skirting at an angle of 90 °, attach it to the ceiling, pointing at the corner of the wall.
  • On the surface of the ceiling draw a line for the trimmer with a pencil over the strip. Repeat the process with the second skirting board.
  • At the point where the lines intersect, you need to cut the batten. Your trimmer line should go against the part of the batten that is against the wall.

If you do not have a jigsaw, you can measure the angle by hand

When cutting the ceiling moldings be sure to note that the inside corner is measured directly from the corner, and the outer corner will protrude into the depth of the room. Therefore, it is better to start with cutting the inner corner, and then move on to the outer corner. Glue the skirting board after the two joints formed by the mating strips have coincided.

Not every interior design involves the use of a ceiling plinth, but most often the overall appearance of the room seems incomplete without it. In the attachment of this element. the baseboard. there is nothing complicated, almost all types of baseboards are attached to the glue. But the question of how to properly cut the ceiling plinth in the corners of the premises, can puzzle many.

After all, even in the simplest rooms, there are interior corners where ceiling plinth strips must be accurately and beautifully docked. And in a more complex configuration of the room will also have to dock the skirting boards, performing the outer corner. In this article, we will consider different options on how to cut the ceiling plinth with or without the help of hand tools.

First we should deal with the question of how to cut the ceiling plinth, the answer depends on the material from which the fillet is made. At the moment, sold ceiling skirting boards made of polyvinyl chloride (PVC), polystyrene foam (plastic foam), polyurethane and wood.

PVC ceiling baseboards are the cheapest.

Dents and creases easily form on them, which cannot be eliminated, so the product has to be thrown away. Also their disadvantage is electrostatic. the ability to attract dust. They can be cut with a sharp construction knife or hacksaw.

Skirting boards made of expanded polystyrene also belong to the cheapest ones. This material is very fragile, when processed easily crumbles, so cut polystyrene foam must be a sharp knife or hacksaw for metal, not making too much pressure.

Skirting boards made of expanded polystyrene are a bit more expensive than polystyrene boards, they are denser and harder to cut. However, they are less crumbly, so they are easier and more comfortable to work with. They can be cut with a construction knife and a metal saw.

Polyurethane ceiling plinths are the most expensive at the moment. They are strong, flexible and moisture-resistant, can be easily cut with a construction knife and will not crumble.

A disadvantage of polyurethane skirting boards is their dependence on temperature differences. For example, over a gas stove, a polyurethane skirting board will become warped and start to crack slightly. If you try to trim or trim such a skirting board, it can warp or otherwise deform.

Wooden ceiling plinths are dense heavy products, which can only be cut with a hacksaw, preferably with small frequent teeth. You can also use a metal blade.

Before we go on to list ways how to properly cut a ceiling plinth, I would like to note that there is a possibility not to cut the plinth with particular precision.

Special mouldings are available to fit the edges of the skirting board into. In this case, the baseboard plank is enough to trim at an angle of 90 °, and the corner element will hide all the flaws. But this method is not always used, because the size of the corner elements are somewhat larger than the baseboards themselves, so the corners in the room will stand out against the general background.

Sometimes it can look clumsy. Nevertheless, if the design of the room allows the use of corner elements for ceiling plinths, it makes sense to use them. The following instructions are useful for those who have nevertheless decided to precisely cut the skirting boards to a predetermined angle.

The first way. with the help of a jigsaw

The Professional Jigsaw with a Pivoting Hacksaw

Chisel usually looks in the form of a tray with vertical holes for a hacksaw. It can be made of wood, metal or plastic. This tool represents the oldest and simplest carpenter’s tool, designed for cutting wooden parts at an angle of 90° and 45°. There are types of such a device and for professional work, with a rotating mechanism, in them the cutting tool can be rotated and fixed in any position.

How to cut a skirting board properly

Ceiling corners are divided into internal and external, the way of joining them is slightly different.

If necessary, you can make a plier with your own hands. Three pieces of plywood or boards of equal size are needed. First, they are attached in the form of an inverted “U” and make a marking of the corners. Then according to the markings cut slots under the hacksaw almost to the bottom, and the boards are twisted.

inside corner

  • Measure the skirting board correctly.
  • Install the baseboard plank in the jig so that this position is exactly the same as the placement on the ceiling.
  • The skirting board must be pressed tightly against the opposite wall of the chair. Hold and press with your free hand.
  • Putting the hacksaw at a 45° angle in the special hole and cut the piece.

When cutting soft materials (PVC, polystyrene foam) use a metal saw or a normal construction knife. Then the work will be neat and with straight edges.

Outer corner

  • Measure the length of the skirting board from the nearest wall to the outer corner, leave a trimmer line on the underside with a pencil, marking the desired length. It is necessary to consider that the edge (its top part) should protrude a little outside.
  • The skirting board is moved into the mortiser and cut.
  • The adjacent strip should also measure with a margin and cut off in a mirror reflection to the first part.

Try on the ceiling plinth: the joining of parts must be perfectly straight. If the result is not achieved and the joints are uneven, you can trim the edges with a regular knife to perfect the joint.

The second method. without additional tools

For the inside corner, you can use the easiest way to perfect the junction. by marking on the ceiling. Another example of how to cut a corner nice and flat.

The result will be an even angle of 45 ° if you run a trimmer line from the intersection point to the edge of the detail. Note that the above method of marking works only with perfectly straight corners.

Trimming the tile

Trimming with a power plier

How to evenly trim a ceiling plinth corner with it?

A plier is an uncomplicated tool used by carpenters. With its help any workpiece can be cut at the required angle.

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

There are complicated designs, which in addition to the named angles also have a hole to make a 60-degree cut.

For professional work, a special power tool is available. Its swivel mechanism allows you to fix the cutting blade in relation to the workpiece at any given angle.

Inner corner

The prepared skirting board is put against the ceiling, the required length is put aside.

Then this same plank is inserted into the mortise exactly as it will be positioned on the ceiling. It should be pressed against the far wall of the device. Hold the skirting board in this position with the left hand.

The blade of the hacksaw should be in such a position that its angle is 45 degrees, and the handle would be as close to the hand. Trying not to exert pressure on the saw, we carefully cut the workpiece.

Next, the skirting board must be cut from the mating bar. It is also placed at the far wall of the tool, held and pressed, this time, with the right hand.

Similar to the previous procedure, the position of the hacksaw is similar. its handle is brought closer to the hand at an angle of 45 degrees. The skirting board is cut.

Then ready, already cut slats are docked. accuracy of fit is checked. It is believed that for better orientation, when making an inside corner, it is better to start cutting from the front part of the product. The cutting areas usually need to be adjusted with a file.

Outer corner

The correct way to observe more accurately the dimensions, first start to measure the inside corner, and only then proceed to the outer corner.

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

A slat is attached to the ceiling, marks are made according to its size. Holding with the left hand, the ceiling skirting board is pressed against the closest wall, the handle of the hacksaw is brought closer to the hand. A blank is cut off.

The skirting board is pressed against the nearest wall, gripping it with the right hand. The blade of the hacksaw should be at an angle of 45 °, the handle of the tool is close to the hand of the master. A piece of the piece is cut, the corner is neatly joined.

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

But if its indicators leave much to be desired, then it is worth to use another method.

Marking on the ceiling

The method with the marking on the ceiling allows you to cut a corner exactly and smoothly. It has one disadvantage. it is rather inconvenient to hold the baseboard by weight during the procedure.

Otherwise, using this method, you will be able to mark the angle for cutting even more accurately than other methods.

When the skirting is applied to the proposed place of installation, all dimensional deviations and inaccuracies are immediately visible and accounted for.

Cutting a corner

First you need to take a pair of blanks, then cut them at right angles. Pressing the end of the slat against a perpendicular wall, we place one slat against the perpendicular wall. We outline a trimmer line on the ceiling along the contour of the baseboard. We remove the first slat, then in the same way, pointing at the end into the wall, attach the counter slat. Mark the contour with a trimmer line in the same way.

The point of intersection of the two separate lines is the point at which the piece is cut. Each slat is placed against the surface again, on both marks the point of the future cut. From the found point to the other edge of the skirting board, draw a trimmer line. Baseboards are cut to the previously made marks, neatly connect, and place in the place of their installation.

This method allows you to process inside corners more accurately.

How to trim a ceiling plinth properly. Important trifles

The measurements needed to trim the skirting board to the ceiling should be made in a special way. To determine and mark the inside corner, the length should be measured from the corner itself. To mark the outer corner, be sure to take into account that the plinth will protrude into the interior of the room at a distance equal to its width.

It is not desirable to fix the skirting boards until their exact position is verified and the counter skirting board is cut. Only after a perfect convergence in the corner of the two mating strips can you begin mounting and fastening them. If you are working with polyurethane or wooden skirting boards, you can fix the defects and imperfections with a file or file. To fit the product of foam plastic, you should arm yourself with a sharp knife.

If even after finishing the skirting boards remains even a small gap, do not rush to upset. it is not difficult to patch it with an ordinary putty. It is not that difficult to cut accurately and neatly a ceiling plinth. But in order to acquire at least a small skill, first try to practice on small workpieces.