How to cut a corner of a wide ceiling plinth

How to cut a ceiling plinth: work with or without a tool

Any repair requires attention to the smallest detail. On how well the finish is made, depends on the appearance of the room and its overall perception. To a greater extent, this applies to ceilings, which in most cases are not perfect, so to hide all the imperfections (their and the walls), many owners use ceiling plinths, which give the rooms completeness. If the installation of baguettes in straight sections does not cause particular difficulties, the joints of elements in the corners require maximum accuracy. Therefore, many owners, who are planning, or have already started the repair, are interested in how to cut the ceiling plinth, what tools can be used for this stage of the work.

The answer to the question of how to cut a ceiling plinth, depends on what material it is made of. Cutting is different, because the baguettes have different density. Therefore, the first thing to consider is the most popular materials, and at the same time the peculiarities of their cutting.


Such products have the lowest price, because the material is very unstable to mechanical influences. Foam is easy to scratch, damage in case of accidental impact. Advantages. minimum weight, which simplifies gluing, easy processing, the ability to paint in any color.

This foam material consists of small granules, which are quite easily separated from each other. However, they are the main disadvantage of such baguettes. They require a very sharp tool. Otherwise the skirting board might crumble, that’s why it will be useless for installation. This is true for both angled and straight cuts.


This contender is more expensive, but it does not differ from the first candidate very much, since it is a “relative” of Styrofoam: it is produced from expanded polystyrene. This material also consists of small granule bubbles, but they adhere to each other more densely. But also polystyrene foam will not tolerate a not too sharp blade, it will also crumble. Therefore, the master needs to prepare no less than a sharp tool.

The main advantage of foam and polystyrene foam is their softness, which allows you to avoid gaps by pressing the workpieces tightly to each other and to the corners.

Extruded polystyrene foam

EPPS is made from the same raw materials as conventional polystyrene foam, but in this case uses a different, more advanced technology. Conventional EPS is made with steam, which is passed through the microgranules.

To obtain extruded polystyrene foam, the particles are mixed at high temperature and the same pressure, and then a foaming agent is added to the raw material. Grain size in this material is much smaller (maximum 0,2 mm), as a result it is less crumbly and more durable. Very sharp tools are not required to cut it, but bluntness of the cutting edge is also not welcome.

Polyvinyl chloride

Plastic skirting boards (PVC). another type of ceiling products. They are usually purchased for finishing bathrooms. If we consider the topic “How to cut a ceiling plinth”, in this case they are exceptions, because to dock them use special, ready-made corners.

Generally speaking, these baguettes can be cut with a utility knife, a metal hacksaw or a sharp kitchen tool. Since PVC products do not restore their shape due to lack of elasticity, it is not recommended to put a lot of pressure on them when cutting.


It is another representative of polymer products. It is characterized by high density and lacks the disadvantages of previous competitors. It is easy to cut, so the tool must be sharp, but there are no maximum requirements to its sharpening. Polyurethane skirting boards do not crumble, do not warp, and can withstand almost any pressure with honor.


This traditional material is cut with the usual carpentry tools: for example, a jigsaw, hand or electric. The places of the cut are processed with sandpaper or a file. Since such products are more expensive than other plinths, the work requires accuracy. A serious mistake can be made easily, but there is no way to fix it. The consequence of negligence will be the purchase of a new baguette.

The ideal tool for cutting wood would be an electric mitre saw. Its biggest disadvantage is its high price, especially for high-quality models. On the other hand, customers have the opportunity to find an inexpensive tool that will do the job decently.

Tools to be used

First about how to cut a polymer or wooden ceiling plinth, how to do it correctly and quickly. In this case, 2 tools will be needed for the work. a plane and a cutting tool.

How to cut a skirting board?

As for the latter, the choice depends on the baseboard material:

  • Items of foam plastic (all polystyrene) suggest the use of a sharp office knife;
  • Baseboards made of polyurethane are usually cut with a hacksaw for metal;
  • Wood requires a jigsaw or saw to be “active”.

The second potential tool for polyurethane is the same office knife. The reason is the rather low density of the material. Another alternative. a sharply sharpened kitchen knife. A special requirement for it is not too thick blade.

A possible substitute for a wood jigsaw is a metal saw. The blade that has the smallest serrations is optimal. Otherwise the tool will get stuck in the material, and making a flawless cut under such conditions is extremely difficult.

Chisel and its independent production

The chisel is the second indispensable tool for working with baseboards.

What it is?

Not everyone may know what it is. This is a device that allows you to cut any workpiece at different angles (45-90°). This is a trough consisting of the bottom and two sides in which slots are made for tools. At the bottom of it lay the material, and in the slots are inserted hacksaw (knife, etc.). д.). After sawing baguettes, it produces practically perfect workpieces.

Chisel. a necessity for trimming any skirting boards, because the joints of the elements require a 45° angle. Otherwise, the connection of parts will not work: either between the adjacent skirting boards will remain a gap, or they will simply need to be trimmed again, since it will be impossible to dock the adjacent products.

Yes, the remaining hole can be masked with some kind of compound. However, this option is still not the best. The filler may soon change color slightly, and this discrepancy will become very noticeable. But even here there is an exception.

How to Make a Jigsaw?

For self-made will need to find a board length of about a meter or more, or a sheet of plywood (chipboard). Still need to prepare:

  • From the selected material cut out 3 parts with a width of 200 to 250 mm, their length. 300 mm (400, 500 mm). Using self-tapping screws, they are connected in a “U” shape.
  • Using a protractor, on the tops of the sides make marks corresponding to the angle of 45 ° (if necessary, and 90 °).
  • Then take a hacksaw, which sawed the holes so that the grooves reached the bottom of the tool.

Finished holes are bored with a rasp, so that a jigsaw or hacksaw can freely enter into them.

Chisel for baseboards: basic rules for 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 main ways to create beautiful and even blanks.

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

Chisel. 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, painting, restoration methods, the average cost. in our publication.

What is a power plier, how to use this tool

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

The main question. what to cut a plastic plinth. The result should be a perfectly flat angle of 45 degrees. Sawing the fillet is fast and easy, if you use a ready-made saw, or make it from available materials. The tool is placed on the floor and held with the left hand for safety. The hacksaw should be positioned in one of the oblique lines, depending on what angle should turn out. right or left.

For beginners it is best to fix the jig on the table so that it will not come off during the work

  • pencil draw a thin, barely visible line for the trimmer;
  • Tack is placed sideways in the jig and determine the angle of the cut;
  • The hacksaw must run exactly along the marked line;
  • The second bar is turned and cut from the other side, so that when the two parts are aligned, an angle is formed.

Before gluing it to the ceiling, the bumpers should be sanded down.

Stucco from polyurethane: what is it, what are the advantages and disadvantages, the main types, composition, manufacturers, the main selection criteria, the stages of independent installation, options for use with photos and cost.

Cutting with a jigsaw: inside corner

To get the right inside corner, it is easiest to use a professional tool. Of course, such work can be done without a joiner, but, in that case, you will need to make more effort. Consider the sequence of actions for cutting the inner corner with a jigsaw.

The first thing to do. to determine the distance from the corner on the outside to the nearest wall. Next, you need to mark the skirting board, thus preparing it for cutting. On the outer side of the tack you need to draw a fishing line for the trimmer on the length of the measurement. It is worth considering that in this case the upper part of the die must protrude a little.

After that you can start trimming. To do this, the ceiling plinth is placed in the cutting tool and securely pressed against the wall. After cutting the first piece you can start with the other piece.

Cutting corners without a jigsaw

Not everyone has the opportunity to buy professional cutting tools. Yes, and the feasibility of such a purchase is rarely justified, as spending money on the chair, which will be used only once. not the best solution. It is also possible to cut the fillet without it. There are several alternative ways to make the right angles.

Manual template preparation

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

Important! To create a simple template it is necessary to use thick paper. An excellent solution is to use cardboard. A template is cut out of it, according to which the cutting will be performed.

We apply the baseboard to the cardboard workpiece and cut it with a hacksaw. Some masters make a marking on the product itself. In this case, there is no need to use a template.

The second option. to make the cutting tool yourself. For this purpose you will need to prepare 3 boards that have the same dimensions (50×15 cm). Next, it is necessary to dock them together. The two side boards, which are the walls, must be fixed to the cross board at right angles. The next step is to mark on the walls an angle equal to 45 degrees. Necessary measurements can be taken with a simple angle piece. Ready-made tool will allow for a short period of time to formalize all the corners in the room.

The third method involves the use of improvised means. In this case it is not necessary to construct a pattern. It can be replaced by an ordinary table, which will need to be pushed to the wall. To the corner formed in this way, it is necessary to attach the fillet, and then conduct its marking. At the end of the part is trimmed with a hacksaw or construction knife.

Materials needed

Set of tools for making an angle ceiling connection without using a jigsaw is not so great, and in principle no different from the set with a jigsaw. Almost everyone has these tools at home:

You can use as a normal office pencil with a hardness HB, and a construction pencil, if you have it in stock. In all construction stores you can buy this pencil, it is rather cheap in the range of 50-100, depending on the manufacturer.

You will need a tape measure and a ruler for exact measurements and for making straight lines; everyone has them at home. Please note that without a ruler you can not draw a straight line for cutting corners in the first method.

A construction or office knife with interchangeable blades is an indispensable helper at home. Its cost, like a pencil, is low, and it is always available, it will give you the opportunity to cut easily and evenly necessary segments, cut corners, or cut thin plates for adjustment of the connection. Some skirting boards are made of material that should only be cut with a knife, not a hacksaw, due to the softness of the material.

You will need a hacksaw only if the material from which the baguettes are made, it is recommended to cut only with it. An ordinary fine-toothed hacksaw will do.

The ceiling plinth must be chosen for both aesthetic and practical reasons. It should fit harmoniously into your design, to cover the joints between the ceiling and walls, to hide defects and unevenness. When choosing a molding, it is necessary to take into account the material from which it is made. this affects the choice of trimming tool and glue for installation, as well as the type of coating on which the baseboard will be glued.

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How and with what to cut

Working with skirting boards of different material involves the use of different tools for cutting. When working with ceiling plinths made of wood it is more convenient to work with a wood saw. All others are better cut with a metal blade, including plastic, Styrofoam and other polymers. A smoother cut and fewer burrs. Saws are usually used when working with a jigsaw.

Corner corners that are properly shaped look attractive

When working with skirting boards made of foam without special devices cut them with a good office knife. Its blade is thin and flat enough to give a smooth, uncluttered cut. If you work with polyurethane or polystyrene with a saw, don’t press too hard: you could crush it.

In general, to get used to the tool and the material, take a piece and practice on it: cut, saw, trim. This way there will be fewer problems when working.

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Material and name

The first material that began to be used to make skirting boards for ceiling design was gypsum. They had to be cast in special molds, after which they were attached to the ceiling with a plaster mortar. Such decorative elements were called skirting boards, and these days they are practically not used, and you can see them in old houses, which have not survived for that time. These are expensive elements of interior decoration, so no one uses them today, and their name is almost unknown to anyone. Today there are cheaper and more practical skirting boards for finishing ceilings.

Part of the assortment in a specialized store

Nowadays, ceiling plinths are made of materials such as polystyrene or polyurethane. These are inexpensive decorative elements, which have a number of other advantages associated with ease of installation, with practicality and attractiveness, as well as “weightlessness”, compared to the elements of decoration from plaster, which have an impressive weight. Similar skirting boards of polyurethane or polystyrene are made of various widths (from 5 to 250 mm), and also have a wide range of forms and drawings, so there is an opportunity to pick up such decorative elements for any style of registration. The only exception are the buildings made of wood, decorated in the appropriate style, where elements of wood are taken as a basis and here it can not be helped, because the style always dictates its terms.

There are still skirting boards made of plastic, which are not afraid of moisture, so they are used for finishing rooms where there is high humidity. For the sake of justice it should be noted that the decorative elements made of polystyrene are not afraid of moisture.

Trim ceiling skirting boards in the corners with some methods, while these options are not suitable for trimming skirting plastic.

Tools used

Depending on the manufacturing material, for the fitting of baseboards are used different tools: when working with wood baseboards used hacksaw for wood, and when working with plastic or polyurethane baseboards is better to use a hacksaw for metal. Elements of the decor of foam can easily be cut with a regular, sharp office knife. In most cases, a plier is used, allowing you to evenly cut the skirting board at a certain angle. If you use a hacksaw for metal, you should not press much, because the cut can not turn out flat, with burrs, and the material can crumple and lead to disrepair. Polystyrene and polyurethane skirting boards require careful handling.

If there is no experience with such tools, as well as decorative elements, it is better to take a small piece of finishing material and practice with different force of pressure, which will later help in solving the problem.

How to cut a corner with a power drill

The chisel is a joinery tool that can be used to cut any material at 45 and 90 degrees. The plier can be made of wood, plastic or iron. Even the simplest device has openings for a hacksaw, the more expensive models even have a swivel mechanism.

The principle of working with a wire cutter is very simple. The slat is inserted into the depression, pressed down and cut through the side holes. As a result you get a cut at the right angle.

  • Measure.
  • Place the skirting board face up in the groove of the jig.
  • Press the slat with your hand, but not too hard (if the skirting board is made of foam plastic, it is easy to break it).
  • Insert a hacksaw at a 45 degree angle into the opening of the wood joiner and make the cut
  • In a mirror reflection in a similar way to cut the second piece. We get the formed inside corner.

Tip! You can cut the skirting board with a metal saw, but if the beam is narrow, it is better to use a construction knife, it makes the cut more even.

Cut the outer corner just as easy. Step by step instructions:

  • On the underside of the skirting board, we mark the desired length, but its edges must protrude slightly.
  • We put a slat in the jigsaw at an angle of 45 degrees and through the holes we make the cut.
  • In the mirror image cut the second bar.
  • Place the prepared elements against the wall. If everything is straight, we glue, and if there are flaws, we simply remove them with a sharp knife.

If it is the first time you work with a pitching jig, it is better to practice on extra pieces beforehand.

How to cut a corner without a jointer

It is possible to cut a corner and glue a baseboard without a joiner. Let’s tell you how not to spoil the appearance of the baguette.

  • Draw a fishing line for the trimmer on any solid surface.
  • From the line does an indentation of 10 cm and spend one more line for a trimmer.
  • At a right angle draw a line through the parallels.
  • From a line on each line we do marks on 5 cm and connect lines opposite points.
  • Lines with parallels as a result form an angle of 45 degrees.

In such a way we get a homemade jig, and now it is necessary to determine the slope and to make a cut of a skirting board.

  • Place the strips on the ceiling and determine the direction of the cut for accurate and correct installation.
  • For an inside corner, the top edge must be shorter than the bottom edge.
  • For the outer corner the upper edge must be longer than the lower one.
  • It is necessary to cut baguettes in a mirror reflection.
  • On the baseboard, which will be located on the right, you need to make the cut on the left side. On the slat, which will be on the left. the cut on the right side.
  • We lay the slats on a homemade jigsaw along parallel lines and, taking into account the direction of the angle, make the cut according to the marks.

To make the cut without roughness and splintering, you need to carefully advance the knife in one direction.

The first method. with the help of a power drill

The Professional Jigsaw with Swivel Hacksaw

The jigsaw usually looks like 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 to cut wooden parts at 90° and 45° angles. There are types of such a device and for professional work, with a rotating mechanism, in which the cutting tool can be rotated and fixed in any position.

How to cut a skirting board correctly

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

If necessary, it is possible to make a crosscut with your own hands. You will need three scraps of plywood or boards of equal size. First, they are attached in the form of an inverted letter “U” and make a marking of the corners. Then, according to the markings, cut notches under the hacksaw almost to the bottom, and the boards are twisted.

Interior corner

  • Making the right measurements.
  • Install the baseboard plinth in the jig so that this position exactly coincides with the placement on the ceiling.
  • The skirting board must be pressed tightly against the opposite wall of the jigsaw. Hold and press with your free hand.
  • We put a hacksaw at an angle of 45° in a special hole and cut the piece.

When cutting soft materials (PVC, Styrofoam) use a metal hacksaw or a regular construction knife. Then the work will be neat and with straight edges.

Outer corner

  • Measure the length of the baseboard from the nearest wall to the outside corner, leave a pencil trimmer fishing line on the underside, marking the desired length. Note that the edge (its upper part) must protrude a little.
  • The skirting board is moved to the mitre and cut.
  • The adjacent strip should also measure with a margin and cut in a mirror reflection to the first part.

Trying on the ceiling plinth: the joining of the parts must be perfectly flat. 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 make a perfect joint. by marking on the ceiling. Another example of how to cut a nice, even corner.

The result is an even angle of 45° if you run a trimmer line from the intersection point to the edge of the part. Note that the above method of marking works only when the angles are perfectly level.

Trimming the skirting boards

Trimming using a wire cutter

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

Chisel is a simple tool used by carpenters. With its help, you can cut any workpiece at the desired angle.

corner, wide, ceiling, plinth

Is usually a wooden, metal or plastic tray, which are made to cut 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 is available as a special plane. 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 applied to the ceiling, the required length is set aside.

Then this same plank is inserted into the plank exactly as it will be located on the ceiling. It is necessary to press 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, so that its angle is 45 degrees, and the handle is as close as possible to the hand. Trying to avoid pressing the saw, we carefully cut the workpiece.

Next, it is necessary to cut a mating strip at the baseboard. It is also placed at the far side of the tool, held and pressed, this time, with the right hand.

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

Then ready cut strips are joined together. the exact 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 cut areas usually need to be adjusted using a file.

Outer corner

The right thing to do, in order to observe more accurately the dimensions, first begin to measure the inner corner, and only then move on to the outer.

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

The strip is attached to the ceiling, and marks are made according to its size. Holding the left hand, the ceiling plinth is pressed to the closest wall, the handle of the hacksaw is close to the hand. The workpiece is cut.

The striker is pressed against the nearest wall, holding 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 workpiece is cut off, the corner is neatly docked.

This processing of the edge of the details with mash is good in cases where the angle between the walls is flat and straight (90 °).

If its performance leaves much to be desired, it is worth using another method.

Marking on the ceiling

The method with the marking on the ceiling allows you to cut a corner accurately and evenly. It has one disadvantage. it is quite inconvenient to hold the baseboard plank in the balance during the procedure.

In all other respects with this method you will be able to mark the angle for cutting even more accurately than other.

When the skirting board is placed at the proposed place of installation, all size deviations and inaccuracies are immediately visible and taken into account.

Cutting a corner

First you need to take a pair of blanks, then trim them at a right angle. Against the perpendicular wall, against the end of the skirting board, we enclose one skirting board. We draw a trimmer line on the ceiling along the contour of the baseboard. Remove the first skirting board and then, in the same way, against the wall, attach the second skirting board. Mark the trimmer line in the same way.

The intersection point of the two separate lines is the mark 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 line for the trimmer. Cut the baseboards according to the previously made marks, carefully join them together, place them in their place of installation.

This method allows you to process inside corners more accurately.

How to cut a skirting board properly. Important little things

Measurements needed to trim the skirting boards on the ceiling, should be done in a special way. To find and mark the inner corner, the length must be measured from the corner itself. To mark an outer corner, it is essential to take into consideration that the skirting board will extend into the interior of the room to a distance equal to its width.

It is not desirable to fix the skirting boards until their exact position is verified and the mating skirting has been cut. Only when both skirting boards match perfectly in a corner can they be fitted and fastened. If you are working with polyurethane or wooden skirting boards, you can fix imperfections and errors with a file or file. To fit the foam plastic product, you should arm yourself with a sharp knife.

If even a small crack remains after finishing the baseboards, do not rush to get upset. it is not difficult to seal it with an ordinary putty. Cutting a ceiling plinth accurately and neatly is not that difficult. But to gain at least a little skill, try to practice on small pieces beforehand.