How to cut corners on plastic corners

Plastic corner than to cut. How to cut a plastic corner at 45 degrees. How to cut a ceiling plinth: learning how to make right angles

Plastic corners for soffits are the logical completion of repairs in the house. They act as a protective and aesthetic design of doorways, window soffits and corners.

Today we will consider how to glue plastic corners on the slopes with your own hands and what is better to glue plastic corners on the door slopes.

Area of application and additional information

Corner for framing is made by hot bending of PVC sheet. Decorative element gives the opportunity to choose colors that will suit any interior. Area of application:

  • Window lining inside the house or apartment.
  • As an exterior material to protect exterior or interior corners.
  • Door or arched opening.
  • To protect the corner of the wall when decorating with wallpaper.
  • Protect the corners when decorating with plastic in the bathroom.
  • Draping the joint when decorating the exterior cladding with siding.

Plastic element. a good protector from mechanical action, but like any material it has advantages and disadvantages:

  • Installed corner used as a finishing seam at the junction of finishing materials.
  • Long service life. up to 25 years.
  • Installation can be performed independently, you can glue a corner without prior preparation.
  • Plastic element is easy to trim, comes in many colors.
  • Fair price.

Why do we need plastic corners on soffits

Among the disadvantages, significant were the following:

    Plastic is a fragile material, so it must be cut with special tools. cracks may appear.

Let’s compare types and sizes

Framing always begins with the choice of type and size of plastic elements. The table shows the data about plastic corners their sizes and types for slopes:

View: Size:
Equilateral: 2020. 5050 mm, standard length, fixed for strength.
Not equilateral: 517 and 2025 mm, cladding of arch openings, it is accepted to install on curvilinear compositions.
T-shaped: 1210, 1810, 2010, 2210 mm, installation is necessary to hide the seams.
Removable (there is a latch): Standard, the shelf is bent for disassembly. Easy fixing, no need to glue.

During installation, it is required to cut the corner to form the desired length. A sharp pair of scissors will do the trick. If it is necessary to cut at a clear angle, you will need to prepare a plane and a metal saw.

Important! Plastic angle for internal slopes in color available in lengths of 2.6 m, 2.7 m, 2.8 m, 3.0 m.

Preparatory work

The installation process begins with the choice of adhesive mixture. Polyurethane adhesive fixes plastic elements well, allows you to frame surfaces where there will be a load. Gives the opportunity to glue details in the bathroom, if ceramic tiles will be glued.

Silicone sealant is used as a fixative with less load. Glued a corner can be with liquid nails, if the trim is a dark color, you can glue with a black composition, for light and white. transparent.

Installation of plastic corners

Work on installing plastic corners on the slopes is as follows:

  • Regardless of where you need to glue plastic corners. on the door, if not provided for casing or window, outside or inside, you must make measurements and properly cut the material to length.
  • Prepare the surface where the gluing will take place. remove excess elements, clean the base.
  • Install and properly glue the strips.

How to glue plastic corners on any slopes:

  • Degrease the surface well before attaching the corner piece.
  • Assembling foam is not used in the design process.
  • Excessive protruding plaster is scraped to a noticeable smoothness.

How to correctly glue plastic corners

  • The sticker provides for marking with a pencil.
  • Before you glue all the parts, you should take advantage of the advice: the corners for the slopes of doors and plastic windows is better to measure on the spot. First of all, install the upper horizontal element, and then using a cutting tool mark the vertical strips.

Important! Using the photo and video, every beginner will cope with the process of gluing independently. The metal element is also fixed with self-tapping screws.

Framing with the corners involves additional fixing strips using a narrow masking tape. Fix it in several places and leave it for about 24 hours. This is enough time to glue the corners securely to the surface.

If the corner is used as a finish, the place of its gluing should be scraped of finishing materials. This increases the quality of adhesion. When fixing on the area decorated with trellises, you should cut a strip a couple of millimeters narrower than the plastic corners. Adhering to the simple rules of design, fix the decorative elements will be quick and easy, and eventually they will please you with an aesthetic and casual look.

Wallpapered and putty outside corners need protection. Wallpaper from frequent contact is rubbed, putty deteriorates. The problem can be solved with decorative corners. Corners to protect the corners of walls can be made of different materials.

Corners to protect the corners of the walls: options for selection

This method of decorating wall corners. protective corners. not everyone likes it, but there are no special alternatives. In any case on the walls with wallpaper, the corner is still better than the sticking out and torn cloths.

what to cut and how to cut correctly, cutting methods

The plinth is an essential element, necessary for decorating the room and giving it a finished and neat appearance. It can be made of various materials, but the most popular now is the plastic plinth. It is easy to install, but even in this process, there are some subtleties that are important to know about. How to cut a plastic skirting board correctly, so that it could be accurately joined in the corners?

Formerly skirting boards were predominantly made from wood, and were considered to be just wood products. But now in construction stores you can find such decorative elements, which are created both from metal, and from plastic and other materials.

Wooden baseboard is a classic. It is a natural product, as it is made of solid wood. This type is characterized by high strength and durability. skirting boards, installed back in the days of the USSR, still faithfully serve in some apartments and houses. Now they are made mainly from pine, but there are also products from walnut, oak, ash and other species. However, this increases the cost of the products, as not everyone can afford such skirting boards.

Because of this, veneered skirting boards appeared on the market. their are an order of magnitude lower. However, outwardly, they are virtually indistinguishable from products made of expensive wood. The fact is that their upper part, which plays a decorative role, just made of a thin layer of expensive wood. Without some knowledge and experience, it is virtually impossible to distinguish a veneered skirting board from an ordinary wooden one.

For your information! To cut skirting boards. wooden and veneered skirting boards. a regular wood hacksaw is used.

Plastic skirting board, that is made of PVC, is especially popular now. It has partially displaced conventional wooden products from the market, as it has a number of advantages:

  • Looks nice and neat. capable of imitating natural wood products;
  • easy to install, flexible and very easy to cut;
  • can serve as a cable-channel for running wires;
  • It is not exposed to water, it does not rot, mould does not grow on it;
  • Is inexpensive in comparison with wooden or veneered products.

Plastic plinth is made of polyvinyl chloride, which is passed through special molds under high pressure. After the hardening of the mass you get a neat plastic product.

For your information! Some manufacturers decorate the edges of plastic skirting boards with rubber. This measure helps the product does not slip on the walls and floor during installation and fits snugly to the surfaces.

Plastic skirting boards are available in several types. for example, those used for carpeting (have a special L-shaped shape, fixing the material) or for linoleum. There are also universal products that can be installed on any type of flooring. They can also be classified according to their rigidity.

corners, plastic

Table. Types of plastic skirting boards depending on the hardness.

How to properly cut baseboard corners

Since during the repair more and more often it is used rigid plastic skirting boards, then it is about them and we will talk. Their installation is inevitably associated with the need to cut and form beautiful joints in the corners. On how the baseboard will be docked, in general, and will depend on the quality of the entire work and the appearance of the room where the repair is made.

Ways to cut plastic baseboards

Baseboard cutting. an apparently simple, but responsible activity. If the corners are not properly cut, they will not be properly joined, and the entire work will go to waste, since the product will no longer have a beautiful appearance. there will be gaps between the two sections of the skirting and decorative inserts (corners, junction elements, etc.). д.).

Most often for the cutting of the skirting board is used an ordinary hacksaw for metal. which has fine teeth. However, for thin baseboards it is not suitable, because the product will simply tear under the influence of this tool.

Sometimes the baseboard is also cut with metal scissors. But the method also has its disadvantages, because the product can crumple under the pressure of the blades. Less often, but still an angle grinder is used. However, the line for trimmer sawing after it can be sloppy, because the tool often “tears” the soft plastic. Especially often this method is unsuccessful for beginners in the world of repair, who do not yet know how to control the work completely. So the angle grinder can be attributed to quite specific methods.

As a side note! A sharpened knife or a utility knife can be used to cut thin skirting boards. But such work requires some skill, so it is recommended first to practice on the scraps of the old plastic skirting boards.

The most important thing in the procedure of cutting a baseboard. is the observance of the necessary geometry. The procedure is never performed “by eye”, here the accuracy of measurements and accuracy are important. Therefore, there are other methods of cutting the baseboard.

Plinth jig for baseboards

Carpentry Jigsaw is a device for making cuts at a certain angle. It is used with a hacksaw. In principle, you can make a jigsaw without assistance from others, collecting guides from boards and making cuts in the walls. On sale, there are different models ranging in price from 15 to several hundred bucks. They differ in abilities, materials, although they are all called “the jigsaw”. Professional models are made on the basis of a good hacksaw and have a scale that allows you to set the saw properly. With this equipment is not a problem to set any suitable cutting angle to correctly cut the skirting board for a perfect fit.

Professional carpenter’s chisel. a tool with a wide range

The most common chair is a plastic U-shaped profile, in the walls of which slots are formed. These slots are used as a guide for the hacksaw. They do not allow the blade to deflect. In any variant there are two cuts. straight and at 45 degrees. In some may be a couple more options.

How to cut a skirting board at 45 degrees? One method is to use a wire cutter

From time to time a hacksaw is included, from time to time it is not. Usually those that are included, are not very good. You can use any saw, selecting the blade under the material to be cut. The principle that the cloth was free to move in the slots.

How to attach plastic corners?

First, note that before the direct installation of plastic corners on the windows it is necessary to wallpaper the room, paint, etc. That is, you can begin to mount them only after all the finishing work is complete.

To mount a plastic corner you will need the following tools:

  • assembly glue (liquid nails)
  • masking tape (adhesive tape), and in a room with high humidity. silicone sealant
  • Metal scissors, or a hacksaw
  • Pencil
  • Directly PVC corners

Finishing of windows with plastic corners consists of several stages. Let’s look at each of them:

Depending on where they are used, plastic corners may be tapered, with L or F. shaped section, unequal, T-shaped profiles. L.shaped profile is most often used compared to the others. Mainly it is a masking of gaps in the joints of materials, edging sheet material, the angular connection trim.

As a rule, the angle between the shelves of the angle is 90 degrees, and they have sizes: 1010, 1515, 2020, 2525, 3030, 4040, 5050 millimeters. These corners are most often used to decorate window and door jambs. If the angle is installed in a place with significant influence of environmental factors, it is better to use angle with the size of 20 mm or more. and above. Smaller corners 1010 and 1515 are usually used for interior finishing, they seamlessly blend into the overall design.

Plastic corners with unequal cross section are used for finishing arches. The sizes of such angles 517, 1020, 1525 mm. Corner with this section is easier to attach, they are flexible enough and easily maintain the desired position, creates a smooth line to trim the bend and an even edge. On one side of such corners there is a section that allows you to make a line for the trimmer bend of the required degree.

PVC corners vary, depending on the type of finish work. So they can be exterior and interior. Outdoor corners have the angle of 90 and 105 degrees. When using the corner, with an angle of 90 degrees, for a window, one strip is left in sight, the other is inserted into the gap window frame. Corner, which has an angle of 105 degrees, is mounted with two shelves outward.

Self-adhesive plastic corners are especially popular. They are quite versatile, t.к. there is no need to purchase glue. They also have an increased ability to bend and unbend, providing easy installation and a perfect look. Another feature: such corners are sold in rolls, the length in a roll is 50 meters. This allows you to buy the necessary length and avoid joints.


How to cut ceiling plinths in the corners? The secret to a quality cut is to make cuts on both the outside and the inside. The inner cut is important if we make the outer corner.

Usually use professional equipment. trimmer saws or electric industrial saws. But supporters of home repair can get by with ordinary tools. The main requirement. at the end of the work the result should be clearly visible texture for the eaves, reflected in its front or back side.

Technology of corner cutting

So, at what angle to cut the ceiling plinth and how to start forming a corner with home tools?

First you need to measure the angle that is between the walls. to do this, you can take pieces of foam plastic from the technique. Usually the angle is 90 degrees. a strict perpendicular. In this case, it is necessary to trim the edges of the product at an angle of 45 degrees.

Similar actions are performed with the second piece.

In the case of unevenness and mismatched joints in the gap between the ceiling and the walls, you need to divide the radius of the corner in two. In this case it is not necessary to confuse the parts. Baguette for the left side is notched to the right, and the one on the right. vice versa.

Before you cut the ceiling baseboards in the corners, form a corner inside the material on the upper space. such a decision is based on the fact that the lower side protrudes over the top. When performing an outside corner, the procedure is performed vice versa. It helps to smoothly and accurately fit the parts the very texture of the polystyrene foam materials. If wooden or plastic elements for the baguette are used, you will have to work with them more carefully.

Types of adhesive compositions

It is necessary to consider the types of glue suitable for window finishing. They differ in characteristics, application.

Durable composition. Allowed point application, zigzagging. Liquid nails will keep the window for 20 years, do not cause chemical reactions leading to darkening, yellowing.


How to properly cut

The inner part of the workpiece is cut at an angle of 45 degrees, the outer part is left under 90, set higher, overlapping. Recheck the size by measuring.


Dimensions are selected on the basis of the type of work to be performed. inside or outside. Also assess the condition of the angle for the presence and nature of defects and damages.

For finishing of external slopes use wide corners

When you install corners on the slopes, it will be enough to use the elements of size 10 x 10 mm or 20 x 20 mm. Wider elements are used for outer finishing of windows.

Characteristics of PVC corners

Finishing is carried out by rigid corners of PVC, made by forming under the influence of high temperatures. This process is necessary to give them strength, durability.

  • when laying tile;
  • for framing arches, doors, windows;
  • around windows, doors when framing window jambs;
  • for smoothing and protecting wall surfaces at corners during plastering work.

Variety of shapes, colors makes it possible to choose a suitable material to give the final look to any interior. They do not burn out, so they can be used for a long time.

In addition to the aesthetic purpose, have a lot of other advantages:

  • close the gaps, hide the irregularities in the trim with the corners of 90°;
  • lightweight. weighs a little, it facilitates installation;
  • do not need processing;
  • Long service life, without loss of basic properties (up to 25 years);
  • easy to install, mounted with glue;
  • plastic, well trimmed;
  • reliably protects corners from scratches and chips;
  • unpretentious in care;
  • Have a small cost.

Corner on the window has disadvantages that do not affect the demand:

  • brittleness, you need to cut carefully;
  • toxic substances are released when heated strongly;
  • scratches may remain on the surface;
  • fading after expiration of the term.


Corner pieces are sold in narrow slats of length 2600, 2700, 2800 and 3000 mm with flanges of 10 to 100 mm.

corners, plastic

Depending on the field of application different sizes of angles are used:

  • for arched openings take 517 mm, 1020 mm, 1525 mm;
  • to create a perfect joint will need T-profile with dimensions 1210 mm, 1810 mm, 2010 mm, 2210 mm;
  • To reinforce the slopes you will need a corner from 2020 mm to 5050 mm;
  • for window linings, small size corners are taken as 1010 mm or 1515 mm.


Corner parts are available in narrow strips with lengths of 2600, 2700, 2800 and 3000 mm and flange dimensions of 10 to 100 mm.

Depending on the application use corners with different sizes:

  • For the arch openings take 517 mm, 1020 mm, 1525 mm;
  • To create a perfect joint you will need a T-profile with the dimensions 1210 mm, 1810 mm, 2010 mm, 2210 mm;
  • To strengthen the slopes, you will need a corner of size from 2020 mm to 5050 mm;
  • For slopes on the windows take the corners of small size 1010 mm or 1515 mm.


Installation of corners from plastic does not involve the need for deep knowledge in the field of construction and is available for independent performance.For this purpose, the following materials and tools are used:

  • A sharpened utility knife or metal scissors.
  • Special. glue or liquid nails.
  • Silicone.
  • The corner profile itself made of plastic.

Before you purchase tools and materials, it is strongly recommended to measure all the slopes and openings, where the planned installation of finishing elements.

It is not recommended to add up all measurements to the total length of material required, so the error value will only increase.

  • The first thing to do is to prepare the surface of the opening, and you should start by cutting off unnecessary, protruding and protruding parts of wallpaper, plaster or foam that prevent the fixation of the decorative element.
  • When the surface is ready, the corner itself is covered with an optimal layer of glue, sufficient? so that it sticks, but do not overdo it? Otherwise the glue will come out from underneath it and stain the surrounding surface. Another thing is the self-adhesive variant, from which you can simply remove the film and it’s immediately ready for installation.
  • It is important to apply the material absolutely correctly right away, so that you don’t have to correct its position by smearing glue on the work surface, and self-adhesive products have only one try for quality installation. In this case, the main thing, clearly, with minimal gaps, or better flush, dock corners and trim them very precisely. Bad joints can easily be disguised by filling it with silicone.

As a result, you can easily decorate any window or door opening. Angle profile made of plastic is made with compliance with all environmental standards, has a constant color and odorless, easy to care for with any damp cloth or tissue.

Price of such products made of plastic many times less than similar from other materials, and this is a major plus of this material, which, combined with almost eternal life makes PVC corner the most popular option for finishing sills and apertures.

  • First, from the type and shape of the section, as well as the size of the shelves, the more they are, the more it costs to produce a plastic corner and the more expensive the product.
  • Secondly, from the method of attachment, self-adhesive corners are already adhered to, which is included in their cost.

For example, white self-adhesive nooks are sold in rolls, each of which is 50 meters long and 35×35 already in 72 rubles.

Usual variants are on sale in pieces of 2.7 m and sold in packs of 100 pieces inside, and the option width of 50×50 sold at 90 per piece.

How to attach the plastic corners?

First, we note that before the direct installation of plastic corners on the windows, it is necessary to wallpaper the room, paint, etc. That is, you can begin to mount them only after all the finishing work.

To install a plastic corner, you will need the following tools:

  • assembly glue (liquid nails)
  • masking tape (adhesive tape), and in a room with high humidity. silicone sealant
  • Metal scissors or a hacksaw
  • pencil
  • PVC corners directly

Finishing of windows with plastic corners consists of several stages. Let’s consider each of them:

Preparatory work

Before you start finishing the walls with plastic corners, you should clean the work surface of dirt, dust and other construction debris. To apply the glue, buy a glue gun, and for installation. additionally the following tools:

You may also need a wire cutter, which is used to make blanks with a 45° angle. But if you do not have a tool, you can manage without it, using certain skills and our recommendations.


The place of attachment and the corner detail itself, degrease with a mild solvent or white spirit. Billet must be clean. Avoid getting wet.

“F” profile for soffits

This type of angle refers to the system of installation of plastic panels. Surely, many have faced with profiles of the system at home or at home. For example, when cladding a balcony. There is also an “L” profile, or so-called, starter profile. As well as connecting and various angles.

But, for me personally, the quality of the profiles of this system does not inspire confidence. Just like the previous type of corners, this corner cracks. That is, it must be cut very carefully.

There is another important nuance. The color of the “F” profile, although white, but very different in color from the most popular type of lining. sandwich panels. And for plastic panels, “F” profile fits perfectly in color. One system after all.

I should also mention that in the case when the edging edge of the slopes plastered, then use the “F” profile will not work.

How to treat the ends

The last step to take is to treat the corners at the cut points with an emery board. You can use an angle grinder, setting it with a special grinding wheel. You can use an electric emery board. The main thing is not to overdo the bevel size. They should not be conspicuous, you should only get rid of the edges of curbs from sharp protrusions.

So, now you know how to saw off the corner of the bathtub, no matter what material it is made of. Dare, and you will succeed!