How to cut ceiling plinth correctly. How to cut ceiling plinths in corners without a miter box the first time

In many apartments and houses ceiling plinth(fillet) is the final design element that gives completeness to the interior of the room. The main difference between a ceiling plinth and a floor plinth is that when cutting the latter, minor mistakes are allowed, because it can be puttied and painted. Cutting the corners of the ceiling plinth requires highest precision. In this article we will tell you how to correctly mark and cut the ceiling plinth so that after installation in place all the elements fit tightly together and there are no gaps.

What are ceiling plinths made of?

The most popular materials for making ceiling plinths are:

  • foamed polyurethane;
  • Styrofoam;
  • expanded polystyrene.

All these materials are characterized by low mechanical strength and ease of processing. They can be cut either with a hacksaw for metal or with a reward, a special hacksaw for wood for fine work. Trimming with a knife is not recommended, because a correctly marked and cut corner does not need adjustment, and if the marking or cutting is done incorrectly, then it will not be possible to correct the situation with a knife, as on wooden floor skirting boards.

Angle marking

First, the baseboard needs to be marked. There are two ways. The first is suitable for external and internal 90 degree corners. The second method is suitable for any angles. The essence of the first method is that a standard miter box provides cutting of any material at angles of 90 and 45 degrees. Therefore, only the corner of the wall is marked on the plinth, that is, the short part of the corner of the plinth. Then they are placed in a miter box and cut at an angle of 45 degrees. The second method is more complicated, but much more reliable. A plinth is applied to the junction of the wall and ceiling and the outer edge is marked. Then the plinth is also applied on the other side of the corner. The intersection of the marks is the outer edge of the joint of the baseboards, and the angle of the two walls forms the inner edge of the joint.

In this case, it is necessary to take into account the direction of the corner, because inexperienced finishers sometimes confuse it and the joint has to be redone. After this, the appropriate markings are applied to the plinth. This can be done either by measuring the marking distances on the ceiling or by placing a piece of plinth at the junction of the wall and ceiling and marking the outer and inner edges on it. After which the plinth is placed in a miter box with a variable angle and carefully cut off. If you don’t have such a tool, you can use a regular wooden miter box by cutting the appropriate grooves in it.

How to cut skirting boards - Video

There are several rules that will help you make an even cut on any baseboard:

  1. Be sure to use a miter box and never cut by eye, as this will lead to cracks.
  2. Position the plinth so that the main cutting force is directed towards the vertical wall to which the plinth is pressed.
  3. If you cut in the other direction, the baseboard will move, causing scratches and damage.
  4. To cut the baseboard, use a sharp tool - a hacksaw or a saw. If the blade becomes dull, replace it.
  5. Move the hacksaw in smooth movements without jerking, keeping the blade strictly parallel to the floor or table.
  6. Before cutting the plinth to size, practice on unnecessary pieces, this will help you get better at it.

– this is the shortest and seemingly simplest stage of repair. But probably many of you had to spend at least an hour trying to cut these 45 degrees. The only exceptions are the lucky ones with a technical mindset and those who were friends with geometry at school.

Today we will tell you how to cut the corner of a ceiling plinth and a floor plinth without resorting to complex calculations. You will see that this is not at all hard work, which can be dealt with in a short time.

How to properly cut a ceiling plinth at an angle of 45°

Corner elements for ceiling plinths can be easily trimmed using a miter box or by hand. In the first case, you will need a miter box and a hacksaw, and in the second, a pencil and a hacksaw/cardboard knife. The hacksaw blade should be well sharpened so that you don’t have to think about how to cover up chips and roughness on the cut.

Cutting a corner using a miter box

We take a polyurethane ceiling plinth designed for the left or right side of the corner. We lean it against the future installation location so that the end of the segment opposite from the corner is against the edge of the already glued molding. In the place where the bottom edge of the ceiling plinth touches the top of the wall corner, make a dot with a pencil or stick a piece of insulating tape. We repeat these steps with the second segment.

How to cut an external corner of a ceiling plinth:

  • We place the left blank in the miter box from left to right, pressing it to the edge closest to us. The corner vertex mark should coincide with the leftmost slot in the same edge
  • We place the right blank from right to left, pressing it to the near edge. The mark for the top of the corner is to the far right slot.

How to saw down a ceiling plinth at an internal corner? Everything is very simple, the actions will be exactly the same, only the location of the corner vertex mark changes. Here it’s the other way around: for the left segment – ​​the far right slot, and for the right – the far left. Ready ceiling fillets you need to align them, and then look at the joints in the light - there should be no gaps. If they are very small, then editing is not necessary; you can get by with sealing with putty material after installation.

How to make a corner of a ceiling plinth: positioning the workpiece in a miter box

Important: sometimes the angles deviate too much from the standard 45 degrees, and a simple miter box for the ceiling plinth becomes useless - you can cut off the excess. The solution would be to purchase a rotary tool, but it is not cheap and this “one-time” purchase will be irrational. In this case, you can use the intersecting point method.

How to cut the corners of a ceiling plinth without a miter box

If you are wondering how to properly cut down a ceiling plinth without a miter box, then the following information will be useful to you. We take the right section of the ceiling plinth made of foam plastic, apply it to the installation site and draw a line on the ceiling along its upper edge. It should extend beyond the vertices of the corners by about 5 cm. We do the same with the left segment and put points at the intersections of the lines. We put the ceiling plinths in place one by one and transfer the resulting marks to them.

We've dealt with the upper part of the ceiling moldings, now let's move on to the lower part. Everything is simple here, the marks we need are the vertices of the corners. We mark their location with dots on the lower edges of the left and right ceiling plinth. Next, you need to connect the dots on the moldings - this will be the cutting line. This method will help you cope with even the crooked corners. Adjustment will most likely not be needed, and if it is, it will be minimal.

How to cut a ceiling plinth without a special tool: the photo shows marks for the intersecting point method

Important: The work described here requires marking of surfaces. Therefore, you first need to start cutting and fitting the ceiling plinth, and only then think about how to glue the wallpaper. Or, if you want to mount the plinth on top of the wallpaper, mark and trim before finishing, and gluing after it.

We trim the internal and external corners of the floor skirting boards

It is no more difficult to trim floor moldings evenly than it is to trim ceiling moldings. We only select the cutting tool according to the material that we will cut. The work itself will also be similar, only for manual cutting there is a slightly different marking method.

Cutting wood floor molding using a miter box

It is necessary to measure the distance from the edge of the baseboard already glued to the wall to the top of the corner of the wall. Now we take a new piece of molding and set aside a length equal to this distance on its lower edge. We put a dot with a pencil or stick a piece of electrical tape. We perform this procedure for both external and internal corners. In the miter box we place the plinth pieces from left to right for the left side of the corner and from right to left for the right. In this case, they should be pressed as in the figure - to the side of the miter box closest to you.

How to cut a corner of a ceiling plinth - placing the workpiece in a miter box:

  • For the outer left one, we match the mark on the plinth with the leftmost slot. For the outer right - from the far right.
  • For the inner left one, we match the mark on the plinth with the rightmost slot. For the inner right - from the extreme left.
Clarification: the slot refers to the one that is on the side that is closest to you.

Cutting the plinth at an angle: the red line marks the place of the cut

Floor plinth: internal and external corner “by hand”

Floor moldings, as a rule, are quite wide and thick, and therefore finding only two points here, as for ceiling moldings, is not enough. For trimming internal corner First, we place a point at its top at a height equal to the width of the plinth - in the figure this is a green point. From it to the left and right we set aside a distance equal to the thickness of the plinth - points 1 and 2.

We apply the left segment to the wall, and from point 1 we draw a line along it, perpendicular to the wall and put a point on the edge. We repeat the action with the right segment, only draw from point 2. In the figure, the point is marked with the number three. We draw a line from it across the plinth to its opposite edge - we get point 4. Now we connect the green dot with points 3 and 4 - we get a line and an angle along which we can cut the molding.

How to cut a plinth: make the necessary marks in the corners

Important: It is easier to trim external corners than internal ones. We set points on the left and right segments: A – mark of the top of the corner of the wall; C – the point of intersection of the lines, which is obtained by alternately drawing the left and right sections of the plinth along the floor; B – from point C across the molding a line is drawn to its opposite edge.

By connecting these points with one line, we get a line along which the cut will be made.

Selecting a tool for forming an angle

The most economical option is to buy a simple plastic miter box. It represents plastic block with eight working slots. This device is designed for only two operations: trimming at 45, 90 and 22.5 degrees. An angle of 90 degrees is useful, for example, if you need to embed a socket box into the middle of the molding.

Some devices come with eccentric locks included. They are preferable because it is easier to work with - the plinth is clamped in the desired position and does not move during the cutting process. Accordingly, if any errors occur, they will be minimal and adjusting the angle will not be difficult.

What to cut plastic skirting board: simple plastic miter box

If you are undergoing repairs in own home, then perhaps it makes sense to purchase a more serious tool - a rotary single-plane miter box. It is designed for cutting at angles of 15, 22.5, 30, 36, 45 and 90 degrees. The design of this miter box includes 2 clamps - for clamping in horizontal and vertical planes, as well as a limiter that will allow you to cut workpieces to the same length. The hacksaw will be built-in here. If it is not clear how to cut a ceiling plinth, the video review below will help you.

How to trim a baseboard in a corner: a rotary miter box

How to cut down a ceiling plinth: video contains detailed description miter box, and information on how to use this tool.

This will be useful to you at work

As you noticed, the text mentioned marking using electrical tape. This is the most convenient way marking workpieces, since the pencil is not always visible on floor plinth, and sometimes it’s difficult to remove its lines from the ceiling. The bright pieces of electrical tape are very clearly visible, and when they are no longer needed, they are removed literally with one movement of the hand. There are no traces of glue left after removing such marks.

Sometimes you have to trim moldings with very large drawing. How to connect corners to make them beautiful:

  • From one long fillet we cut pieces according to the number of corners, each of which should contain an element of the pattern. On both sides of the pattern there should be 5 cm of the length of the plinth.
  • We measure the resulting blanks and find their middle, cut along the center line.
  • We make corner trims as usual, but taking into account the fact that the centers of the patterns on the workpieces should fall on the tops of the corners.

How to join the corners of a ceiling plinth if there is a large pattern on its surface

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 using certain technologies. You can decorate the interior using a variety of materials.

Today, a very popular technique is the use of ceiling skirting boards to hide unevenness 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 will help you understand the advice of experienced construction and repair professionals. They will tell you how to use various instruments perform the necessary manipulations with decorative finishing various types.

General characteristics of finishing

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

In the construction industry it is called (scientifically) a fillet. Of all the materials from which such finishing 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 the best material for those presented finishing products. But even it has a number of disadvantages. These should be taken into account before cutting corners on ceiling plinths. Polyurethane is susceptible to temperature changes. Therefore, it is not used for finishing in the kitchen or bathhouse. Otherwise, the baseboards will quickly crack and lose their aesthetics.

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

PVC skirting boards are relatively cheap. But it is very easy to leave dents or gouges on them. Therefore, you should work with such products very carefully.

Wood looks very beautiful, but not in all interiors. In addition, it is quite difficult for a non-professional craftsman to work with such material. Do you want to do the renovation yourself? Then you are better off choosing polyurethane or expanded polystyrene.

Shape, accessories

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

When choosing the size of skirting boards, take into account the type of interior, as well as the height of the ceilings. For small room, where the distance from floor to ceiling is no more than 2.75 m, will not fit wide baseboards. 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 shaped 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, it is necessary to perform even, beautiful trimming of the corners.

Preparatory work

To make the process quick and simple, use a tool such as a miter box. This is a template that has a U-shape. There are slot patterns in its side walls. They have different angle tilt

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, using such a tool makes the work much easier.

First you need to mark the baseboard. If you need to create an external corner, the length is measured along the ceiling, the internal one - along the wall. For fillets, a line slope of 45 and 90 degrees is used. Since this is a fairly small number of slot options, it is quite possible to make the template yourself. All you need is a sheet of paper or cardboard.

If the repairman has significant experience in carrying out such operations, he can cut corners without additional tools. The craftsman places the fillet against the wall, and then makes marks on the product right here. After that, he trims off the excess. An inexperienced craftsman will most likely not be able to cut it the first time. straight corners. Therefore, it is better to use a miter box or cover the unevenness with decorative corners.

Internal 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 there are no external corners in ordinary rectangular rooms, then these varieties will have to be cut out in any case.

A plinth is placed on the bottom of the miter box with the side that will be adjacent to 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 easy to handle sharp knife. The angle should be 45 degrees. If the pressure when cutting is too strong, snags and chips will form on the baseboard. cut according to the same pattern.

Before gluing, they are applied to the wall and, if necessary, minor unevenness is corrected. There should be no gaps between the baseboards. If this is the first time you are doing this kind of work, you can practice on small pieces.

External corner

Quite often the outline of the walls in a room has 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 placed on the bottom of the miter box in the same way as in the previous version, with the side adjacent to the ceiling.

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

Difficulties may arise if it is necessary to cut the same plinth on one side to external corner, and on the other - for internal. This is where many people make a mistake. First you need to cut out the inner corner. Otherwise, too short a plinth will not fit together 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 an inexperienced master. Not always home handyman There is a tool such as a miter box at hand. You can do without it.

To do this, markings are made directly on the wall. First measure the required length decorative item. It is cut at a right angle. Next, each piece is applied to the ceiling. Their outline is outlined with a pencil. This creates an intersection. It is applied to both baseboards.

An inclined line is drawn from the intersection point to the edge. This is the trim limit. It is adjusted before gluing by placing both skirting boards against the corner. This is a fairly simple method, but even it requires a good eye and accuracy in work.

Homemade instrument

Don't have a miter box? No problem! You can do it yourself. When performing pruning for the first time, it is better to apply it in your work. To do this you will need a plywood board, paper or cardboard.

Wondering how to cut outside 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. Next, using a protractor, angles of 45 degrees are made along the edges.

A homemade tool is applied to the baseboard, making appropriate notes. The cutting 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, such discrepancies result in gaps between the joints. Therefore, pruning is done in the previous way. Before installation, the edges must be adjusted.

Relief plinth

So, we already know how to cut corners on ceiling plinths. But we have considered the procedure for performing work if there is simple shapes. Now you should pay attention to the relief varieties. There are increased requirements for their installation. Due to availability decorative elements cutting such products is a little more difficult.

The corners are joined in those places where stucco or other volumetric elements protrude more than the surface. The angle then becomes expressive. It is better to take into account the components of the design and do the cutting 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 mark on the wall. But using a miter box will make it easier to cut out 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 go quickly and easily. This finish will fit into almost any interior. If all actions are performed carefully, carefully gluing the joints, decorative effect will be amazing. The interior will please the eye for a long time.

The renovation of a room and its interior decoration most often ends with the installation of ceiling plinths. Although some prefer to abandon them, even if the most professional master does interior decoration accurate to the millimeter, the repair will seem incomplete if the ceiling plinth is not glued. When you do redecorating, most likely, against the background of other questions, there is one more problem - how to cut the corners of the ceiling plinth?

The ceiling plinth completes the interior decoration, giving the room a neat, finished look.

Some features

Initially, everything seems extremely simple. During real repairs, people who are faced with cutting corners discover that everything is not as simple as it seemed initially.

This problem arises because you cannot cut the ceiling plinth at an angle of 45 degrees. How to cut the corner of a ceiling plinth if you do not have certain knowledge and experience? Let's try to answer this question.

To know the technology of working with a certain material, it is necessary to determine the properties of this material. To do this, let’s find out what these products are made of? Materials for production:

For work you will need the following materials:

  1. Miter box. This carpentry tool is sold in all construction stores. Choose the simplest option so you can cut at 95 and 45 degree angles.
  2. Hacksaw for wood or metal. When choosing this item, take the one with small and dense teeth. IN in this case the cut will be even and smooth.

But sometimes it is not possible to buy a miter box. Therefore, we will consider two options for cutting the corners of the ceiling plinth:

  • without professional miter box;
  • with a miter box.

Cutting the corners of ceiling plinths with a miter box is as easy as shelling pears!

Trying on the plinth on site before gluing is a mandatory stage of high-quality work on installing the ceiling plinth.

If you bought a miter box or already had one, then cutting corners will not be difficult. In order for the angle to be even, you need to place the plinth in the miter box in the position in which you will further attach it to the ceiling.

Hacksaw or knife? For wood - only a hacksaw; for the rest, you can use a knife, but only on condition that it is sharp and thin. Otherwise, you risk ruining the baseboard.

Once the cut is made, it may be necessary to adjust the angle before installation. This is done with a file - for wood, for polystyrene foam and polystyrene - with a sharp knife.

Cutting ceiling plinth requires softness, tenderness, smoothness and calmness.

Do not apply force under any circumstances, as this can break not only fragile foam, even wood can crack if you press harder than required.

Cutting the corner of a ceiling plinth without a miter box is also not a problem!

But it is not always possible to buy a miter box (not in material terms, it is relatively inexpensive). There are cases of repairs at the dacha when they forgot to buy it in the first place, and a trip to the city will cost more than the miter box itself. Therefore, let's consider the following option - how to cut a plinth without a miter box.

  1. For this option, you will need a simple pencil, an eye, a knife or a hacksaw for metal (or wood). Choose a tray similar in shape to a miter box. It will be analogous. You can even choose the angle between the wall and the floor. First, mark the places on the material where you will make the cuts. Further, the work is similar to working with a miter box. Place the product in the position in which it will be mounted on the ceiling. Holding the knife (or hacksaw) strictly in a vertical position, make cuts along the intended meters. Tip: Use a protractor or student's ruler to mark correctly.
  2. Another method requires cardboard or thick paper. A template is made from cardboard and drawn in it with a simple pencil line is a reference point. After this, take two small boards and assemble them at an angle of 90 degrees. Next, the process is the same as with the miter box. Lay and begin cutting the ceiling plinth in the direction of the selected angle.
  3. The third way to cut ceiling skirting boards is also quite simple. The method is similar to the first two - an analogue of a special construction miter box is also made. Take 3 boards and knock them together in the position the miter box suggests. Take a student's protractor and draw lines of 45 degree angles. Next, everything is the same as with a regular miter box.

Additional rules

With the help of the above tips, it becomes clear that cutting the corners of the baseboard for the ceiling is not difficult. But in order for the result to be of high quality, it is worth familiarizing yourself with some rules:

  1. Before attaching one part, it is worth adjusting the second one. Before applying glue and attaching the product directly to the wall, attach both halves of it. In this case, the wall surface must be dry. So, you will check that the connection is correct so that there is no gap or gap. In case of inconsistency, straighten the joint with a sharp knife.
  2. Don't be nervous if it doesn't work out right away. It's quite normal. Sometimes, in order to cut correctly, you have to trim the element several times.
  3. It happens that the tops match perfectly, but there is a small gap in the middle. Such a corner can be fixed, then the gap can be sealed with putty. This is not scary, since the baseboard must be painted after installation with water-based paint.
  4. Particular attention must be paid to the length of the planks in the corners. The following rule applies here: for an internal corner, the length of the strip is adjusted from corner to corner. For an external corner, a measurement is taken in the direction of the room from the internal point.

During the consideration, it is clear that cutting the corners of the ceiling plinth when you have only the most basic tools, such as a knife, hacksaw and miter box, is quite simple. You can save some money and do without the help of a specialist.

If cutting is too difficult for you, you can buy ready-made parts to which straight strips are attached. Basically it all depends on your abilities, skills and, most importantly, patience. Good luck!

From beauty ceiling decoration The aesthetic perception of the entire room directly depends. This is especially true for the quality of gluing baguettes: if it is not difficult to do this on straight sections of walls, then when decorating corner sections you will need to know how to cut ceiling plinths.

Types of ceiling plinths

Classification of baguettes is carried out according to the material of manufacture:

  • Plaster. The most ancient representatives of ceiling plinths. Special dies were used for their casting. Various solutions were used as adhesive installation composition. The name “fillets” is also applied to gypsum moldings. IN modern construction they are used very rarely due to the high cost and inconvenience of installation. In addition, more reliable and inexpensive imitations of gypsum fillets have appeared.
  • Polystyrene (polyurethane). The most common type of ceiling plinth. Products of this type are characterized by low cost, excellent aesthetic characteristics, ease of installation and a rich assortment in terms of external design. The width of polystyrene baguettes varies between 5-250 mm. They can be used in any type of room, complementing various interior styles.

  • Wooden. Expensive and rather bulky baguettes, with the help of which they are mainly decorated wooden houses with a matching interior. For installation wooden planks In addition to glue, screws and nails are often used.
  • Plastic. Great option for bathrooms and other rooms with high humidity. Installation is carried out using special moisture-resistant glue or hidden 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 corner adapters.

What tool is needed

When installing the ceiling plinth, it must be cut to size or in the corners.

As a rule, the following tools will help you cut the corner of the ceiling plinth:

  • Wood saw. Used for working with wooden products.
  • Hacksaw for metal. This tool is convenient for cutting plastic, foam and polymer friezes. As a result, it is possible to obtain a fairly clean joint without burrs. When working with saws, it is convenient to use a miter box.
  • Stationery knife. With its help, you can cut foam baguettes without using special tools. The main thing is that the knife is well sharpened and has a thin and even blade. If you act carefully, the cut will be smooth, without any dents.

When using a saw, it is important not to use excessive force, otherwise the baseboard will be dented. It is best to practice on some unnecessary piece first. This will allow you to get beautiful fragments in the future.

Ways to get a beautiful angle

The most difficult area during registration ceiling surface The frieze is the corner areas. If you simply cut the baseboard at the right angle, you will be left with unsightly gaps. To achieve a tight fit between two adjacent products, it is also necessary to trim their edges. There are several ways to do this.

How to cut a corner using a miter box


How to cut off a corner of a ceiling plinth if an external corner is being formed:

  1. Before cutting the corners of the ceiling plinth with a miter box, make a cut at an angle of 45 degrees.
  2. The miter box is placed in a comfortable position. This will make it possible to determine exact location skirting boards: first of all, this concerns the edge of the product that will be adjacent to the ceiling. To avoid confusion, it is most convenient to place the right-handed bar on the right, and the left-handed one on the left.
  3. The surface is pressed against the lower surface of the miter box. In this case, the second part rises, turning out to be the closest. It must be placed against the wall of the miter box in such a way as to prevent it from wobbling during operation. With this arrangement, the front side of the product is turned in the opposite direction.
  4. The cut must be made at an angle of 45 degrees away from you. If done correctly, folding the two halves creates a beautiful outer corner.

After the correct sawing of the ceiling plinth in the corners is completed, both pieces must first be applied to the ceiling “dry” to check the coincidence of the corner geometry. If adjustments are necessary, trim with a knife. It is easier to cover small gaps with putty, which after drying must be treated with sanding paper. As for the internal corner, it is much easier to design.


Procedure for cutting ceiling plinths in corners internal type is very similar to the one described above. The first step is to determine the side that will be adjacent to the ceiling. It is placed at the bottom of the miter box. The reverse side leans against the near wall. After sawing off the plinth on the ceiling is completed, the resulting fragments must be applied dry to the corner, checking the quality of the joint. If necessary, adjustments are made. After this, the first and second plinths are installed on the mounting structure. Small gaps in the corner can be filled with special putty.

Other pruning methods

As a rule, in ordinary rooms the walls and ceilings are rarely even. If there are minor deviations, they can be adjusted during the fitting process. If the deviation of the angle from the standard 90 degrees is large, you need to know how to cut the ceiling plinth without a miter box.


There is only one way out in such a situation - to carry out the procedure for cutting corners on the baseboards on the ceiling in place:

  • To carry out the procedure on how to correctly cut a plinth for the ceiling, you need to arm yourself with a finely sharpened pencil (with its help you can make clear marks that are not visible from afar), a piece of baguette, a ruler and a good stationery knife (if you are installing a plastic or wooden baseboard– then with a saw).
  • Having attached the frieze to the corner, make a mark with a pencil along the outer edge. Do the same with the other side of the corner. As a result, the lines should form a cross on the ceiling. The intersection point of the marks will be where the edges of the ceiling frieze converge. To transfer the diagram of how to correctly cut the ceiling plinth at the corners, apply the frieze and rest the end part against the corner.
  • Next, using a ruler, you need to connect the edges of the frieze and the markings. A simple operation like cutting a plinth for a ceiling on a hard surface will not give a positive result: there will still not be a complete connection along the corner cut of two separate baguettes. In this case, it is necessary to carry out additional pruning in place. This option will do for not very wide friezes (up to 5 cm).
  • To cut the corner more accurately, you need to place the plinth on the end. When cutting, the knife should move diagonally at an angle of 45 degrees (to ensure a sharp edge). After this, local adjustment, if necessary, will be on a very small scale.
  • A similar procedure for how to properly cut a plinth on a ceiling is also carried out for the second plank. It must be attached to the place of future installation, resting its end against the adjacent side of the corner. Next, mark the point with a cross, apply markings and cut at the bottom. If adjustment is required, it is carried out before applying glue.

Similar actions are carried out on the outer corner. It is most convenient to first trim one corner, and then adjust the second one along it.

Using decorative corners

This refers to special corner adapters, which are usually equipped with polyurethane and polystyrene friezes. Decorative corners They are glued to the very corner, and the baguettes are adjacent to them on both sides. In this case, adjustment is either not required at all, or is carried out with a simple stationery knife.


Docking on straight sections

The most difficult areas when decorating the ceiling perimeter with a frieze are the corner areas. Having passed the first corner, they usually begin to move in both directions at once, gluing plank after plank one by one. If the entire frieze fits when joined directly, no problems arise: using a miter box, cutting both edges at an angle of 90 degrees, they are connected assembly adhesive. The main thing is to achieve maximum invisibility of the joint.


A slight difficulty arises when installation work are approaching next corner, and the frieze needs to be cut to length. This must be done with a certain margin for cutting the corner. Experienced craftsmen It is recommended to leave a margin of at least 10-15 cm, taking into account possible mistakes during registration (sometimes it doesn’t work the first time). After the corner of the frieze is trimmed and checked, the plank is applied dry to the area remaining from the corner with a straight cut towards the nearest baguette. Having marked the required length with a simple pencil, cut off the excess at an angle of 90 degrees, and glue the manufactured and adjusted section.


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