How to properly cut corners on plastic corners

Required tools and materials

When the doors and windows are installed, it is necessary to deal with the finishing of the slopes, as a rule, this is the final stage. To hide small roughness and give a complete aesthetic look, many use ready-made corners. How to properly cut and glue a corner made of plastic, cork or MDF? Below are detailed recommendations for their installation..

Plastic, wooden or MDF – which ones to choose?

Making sure that the installation of corners is not just a whim, but a necessity, we will study the construction market in order to make the right choice. These products are divided into types depending on the material from which they are made. So, the corner can be plastic, wooden, bamboo, made of cork or MDF. Absolutely each type has its pros and cons, we will consider them in more detail.

Plastic corners are made by hot folding a sheet of polyvinyl chloride. Basically, they have the same shelf width – from 10 to 40 mm in 5 mm increments. However, there are asymmetric specimens, for example, 10×25 mm, but regardless of this parameter, the angle between the sides is 90 degrees. If it is necessary to transform the arched opening, then this is done by means of a special flexible profile. Their advantages can be called a relatively low cost, they do not need painting, unlike the same tree.

The next type is cork corners. Such decorative elements are quite often used for arched openings, but this does not mean at all that their use is limited only to this area. They can also be used for finishing slopes of various shapes. The cork has a number of advantages, including strength, fire resistance, practicality and environmental friendliness. In principle, this material has practically no drawbacks, except that if your pet wants to sharpen its claws on it, this will damage the surface.

It is also worth noting wooden and bamboo products, which will always be signs of excellent taste and will fit into almost any interior. In addition, we must not forget about their environmental friendliness. True, such elements are somewhat more expensive than their counterparts from other materials, and besides, they often need painting. A material such as MDF can also be compared with natural wood, only it costs significantly lower, because wood dust is used to create it.

Photo gallery: finishing materials

It can be seen that the assortment is quite extensive, and there is plenty to choose from. But what should be guided by this? Of course, no matter how we would like, but almost always the budget is limited. Therefore, first of all, we have to proceed from our financial situation. As mentioned above, plastic products have a very reasonable price, while their appearance is not much inferior to analogues made from natural materials. But, in addition to the price, you should also pay attention to the fact that these decor elements harmoniously fit into the design of the room..

For arches, you should purchase special arched corners of different sexes, they ideally retain their position when bent. Please note that the wider the sides of this element are, the more loads it can withstand.

Installation of corners on the slopes of a window or door

Having figured out what such products are made of, what are their features and having decided on the choice, you should study how to install the corners on the slopes. Detailed instructions are given below.

What glue to use

In addition to the corners themselves, we also need an adhesive composition with which we will fix the selected element. When choosing it, it is worth remembering that quite often, especially if it is necessary to glue a narrow product, the glue seeps out from under it and, naturally, falls on the walls. As a result, the latter can be damaged, which, accordingly, will negatively affect the appearance of the room as a whole. Therefore, you should choose such an adhesive composition, the excess of which can be removed from the surface..

Basically, the corners are glued to new slopes, but nevertheless, check that the surface is relatively flat, since no decoration can hide large bumps. It should be free of foreign objects such as nails, self-tapping screws, etc. It also needs to be degreased, for this purpose white spirit is suitable.

Why do you need to fasten the corners to the slopes

Let’s start with the most important – why is it necessary? What role do the corners play – only decorative or do they have more serious functions? Let’s not argue with the fact that if you frame the slopes of doors or windows with special decorative elements that fit perfectly into the design of the room, then the interior will immediately change for the better..

Corners protect slopes from damage

But besides this, they also perform a very important protective function. Sooner or later, you have to carry bulky things through the opening, which is fraught with damage to the corners, and you can simply accidentally touch the outer corner and damage it. There can be a lot of situations, most importantly, the result is the same – a damaged surface and, accordingly, a view. In addition, as practice shows, most often the wallpaper begins to flake off precisely in these places. So it is best to protect the outer corner of the slope with a decorative element that will also transform the interior..

Corners are not only protection, but also a neat aesthetic appearance

How to cut correctly

Before discussing how to attach the corners to the slopes, you should find out how to cut them correctly. After all, this stage of everything is the most time consuming and, perhaps, even the most important, since it depends on how much their edges will join, and this directly affects the aesthetic appearance of the entire room. The best way to do this is with a fine-toothed hacksaw. First, you need to measure the length of the opening, then we put marks on the corner itself so that the segment corresponds to this parameter. Then we cut off the part that will adjoin directly to the slope strictly according to the marks, and the part that will be against the wall at an angle of 45 °.

Use a fine-toothed hacksaw to trim the corner.

Materials for the manufacture of plastic corners

If you classify products by material, then there are two types of corners for arches:

  • metal;
  • plastic.

Metal are only perforated for plaster. They serve to reinforce and prepare external corners for final finishing. When used, they have to be cut.

On curved surfaces, when the perforated corner metal profile is bent, bumps appear, and the round arch becomes polygonal. Therefore, when strengthening the openings, a plastic perforated corner profile is used. It is fixed with glue or screwed to the wall.

Perforated corners are made of plastic for finishing corners and slopes. They are flexible and inexpensive. Products are made of PVC or polyurethane. They hold their shape perfectly when bending. The corners are so soft that they can be used to trim curved surfaces with a minimum radius. Also, PVC and polyurethane plastic products are more durable and do not fade.

Methods for mounting arched corners

Installation begins with surface preparation. Regardless of what the arch is made of (brick, drywall or other materials), you must first carry out the preparatory stage. It is also necessary to strengthen the surface of the opening before gluing the decorative corners. Consider how to glue a plastic corner on an arch in two situations:

  • In a new building, where the walls are only plastered and not finished with anything;
  • In a residential building with finished walls (painted, papered).
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Methods for mounting arched corners

Methods for mounting arched corners

Methods for mounting arched corners

In the first case, the scope of work is small, it is easily performed even by novice builders:

  • Products are attached to brick walls with plaster or quick-drying putty..
  • The corner is screwed to the drywall with screws, glued with liquid nails or put on a plaster putty.
  • At the next stage, the installation site is plastered, sanded, painted or pasted over with wallpaper. After that, decorative protective corners are installed..

In the second case, when the opening has already been made, and the wallpaper is pasted, it is necessary to carry out more complex work. Procedure:

  • To begin with, you need to carefully draw a parallel line from both sides of the arch to the width of the perforated corner. To do this, you can make a template from the plank.
  • Remove excess plaster from both sides of the corner with a spatula.
  • Secure the perforated corner using one of the above methods (nails or glue).
  • Putty and level the walls in one plane.
  • After puttingtying work, check the plane with an even long ruler or strip. There should be no gaps between it and the wall..

If the plane is flat, proceed with the sticker.

If the walls are crooked, the corners will need to be opened.

The nuances you need to know about:

  • To fix the perforated profile in the opening, prepare spacers from wooden planks.
  • First, the upper part (in an arc) of the profile corner is installed and the places at the lower points are marked with a pencil on the wall.
  • Then the lower pieces of the corners on the right and left are installed and fixed.
  • After the lower profiles are fixed, the upper part is installed. Due to the elasticity of the plastic, the profile will be pressed against the base and will not fall.
  • Another option for fixing is gluing the corner to the wall with masking tape, if the wall surface allows this.

If in some places the perforated corner moves away from the surface, press and fix it with a self-tapping screw, and only then treat it with putty. If the screw sticks out above the surface, ignore it. After the putty seizes, you can unscrew it and close the hole.

How to glue a plastic corner the first time and without mistakes (21 photos)

Arched corners are used for finishing the premises. They have two main functions:

  • decorative;
  • protection of corners from damage.

Arches, as an element of architecture, appeared in ancient times for one reason: there were no reinforced concrete beams, and wooden lintels did not last long. Recently, the fashion for decorating doorways with arches has returned. Plastic corners protect sharp edges from accidental damage, abrasion and from people passing by.

Types of corners for finishing arches

At the place of use, the corners are divided into:

  • those that are installed on plaster;
  • corners that are glued under the plaster.

The first ones have a wider assortment: they are made of different materials, they can be of almost any color. The latter have special holes for better grip. Available in both metal and plastic.

  • alignment of external arched corners;
  • protection of corners from accidental damage;
  • surface decoration.

Wallpaper has a tendency to peel off from the base over time. The doorway, trimmed with decorative corners, will keep them on the wall, and also give the room a finished look.

Perforated corner for strengthening corners and slopes.

How and how to glue plastic corners to the corners of the walls?

For this purpose, liquid nails or other universal PVC glue are used. There is nothing complicated in the process itself. First, apply on one side a continuous line of glue about 5 mm wide and spread it with a spatula or other handy material over the entire plane of the corner. Repeat the procedure on the other side. Wait about 5 minutes and press it firmly against the wall. Fix the first part of the decorative corner with tape. Please note that soft pads must be placed under the spacers: cloth, foam, polyurethane sponges or other materials at hand. If you forget to do this, there will be a risk of damage to the surface of the decorative corners. While the first part is drying, measure the remaining distance and glue the last pieces of the profile on both sides.

Adhesive for PVC plastic corners.

During gluing, excess glue can be squeezed out and protruded outward. Wipe it off immediately with a damp cloth and check the residue after a while. If there are any, roll them into balls with your fingers and remove.

properly, corners, plastic

Remember to use a metal square to mark and cut off excess material. It is more accurate than wooden.

Outside Corner Application of adhesive film: European Option

How to glue a flexible corner to an arch

Before proceeding with gluing, it is necessary to accurately measure the opening and length of the corner. Measure the perimeter of the opening from the plinth with a margin of 2-3 cm from each edge (just in case). Please note that the perimeter of the opening will be at least 5 meters, and corners longer than 3 meters are not for sale. Thus, it will not work to paste over it in one piece. First, attach a flexible corner to the arch and start marking from top to bottom..

Plastic protective corners.

The lower ends of the corner should be at the same distance from the floor. You can level them with a water level. If not, then take the marks from the floor. Let’s assume that it is horizontal. Even if he is not, the human eye will not be able to catch it. The seam between the corners will be visible in any case: if one end is lower than the other, then in aesthetic terms, such a design will lose.

How to glue a flexible corner to an arch

How to glue a flexible corner to an arch

How to glue a flexible corner to an arch

How to glue a flexible corner to an arch

Tools for the job

Prepare the following tools and additional materials:

  • square;
  • stationery knife;
  • water level;
  • masking tape;
  • wooden planks;
  • rags to remove excess glue;
  • metal scissors or hacksaw.

If there is no square, but there is only a school ruler, then remember geometry lessons from high school. Draw a right-angled triangle on anything with sides 3 and 4 centimeters and a diagonal of 5 centimeters. Or take a school notebook on arithmetic and draw a right angle in it, and then transfer all measurements to the surface. If the volume of work is small, then several cuts can be made even with a hacksaw blade, holding it in your hand.

properly, corners, plastic

To make the cut straight, attach a metal square to the surface. Its side will be the guide and will not let the hacksaw blade go to the side. The cut must be strictly perpendicular to the longitudinal axis, otherwise the seam will be visible.

Although the corners for the arch are not an obligatory element of the room’s decoration, they are recommended to be used in order to give the interior a finished look..

Preparatory work

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

The silicone sealant is used as a fixer with less stress. The corner can be glued with the help of liquid nails, if the edging is dark, then it can be glued with the help of black composition, for light and white – transparent.

How to Cut a 45 Degree Plastic Corner

During renovation work in the premises, the skirting boards play a decorative role, they are the finishing touch of the design. They are also designed to close blemishes between different surfaces. Correct gluing of ceiling and floor skirting boards is an easy task, but a responsible one. In this regard, the issue of their installation becomes especially important..

The photo shows the joining of skirting boards in the inner corner of the room.

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The skirting board is represented by a very wide range of products:

  • Foamed PVC, plastic, available with cable ducts for wiring and in their absence.
  • Made of wood, made of different wood species, solid, in other words, laminated; Installing a wooden plinth is no different from installing plastic fillets.
  • Iron, iron and duralumin, with cable channels and flat.

Included with plastic or iron products are different connections and ends, with which it is easy to install. Therefore, in fact, the question is never really what, in fact, how to cut plastic skirting boards at the joints. The wood is devoid of such connecting parts. They need to be cut for a perfect connection..

Fundamentally. Fillets made of wood must be kept before installation about the room for which they are provided for more than a day. Just like any wood product, it must adapt to temperature and humidity..

At work, the following comes in handy:

  • miter box;
  • a hacksaw with a small tooth;
  • sandpaper.

Let’s see how the pruning process is carried out.

To connect the planks when walking around corners, the question is, how to cut the plinth at 45 degrees? This is done painfully simple, but it is better to have a special device called a miter box..

Scope of use and additional information

The framing corner is made by hot folding the PVC sheet. The decorative element makes it possible to choose colors that suit any interior. Application area:

  • Window slope inside a house or apartment.
  • As an external material to protect external or internal corners.
  • Door or arched opening.
  • To protect the corner of the wall when wallpapering.
  • Corner protection when finishing with plastic in the bathroom.
  • Draping of the joint when decorating the external cladding with siding.

A plastic element is a good protector against mechanical stress, but, like any material, it has advantages and disadvantages:

  • The installed corner is used as a seam finish at the junction of the finishing materials.
  • Long service life – up to 25 years.
  • Installation is carried out independently, you can glue the corner without preliminary preparation.
  • The plastic element is easy to cut and comes in a variety of colors.
  • Acceptable price.

Why do we need plastic corners on slopes

Among the shortcomings, the following were significant:

  • Plastic is a fragile material, so it must be cut with special tools – cracks may appear.
  • Flammable finishing element does not tolerate high temperatures.

Installation of corners on the slopes of a window or door

Having figured out what such products are made of, what are their features and having decided on the choice, you should study how to install the corners on the slopes. Detailed instructions are given below.

Photo gallery: finishing materials

It can be seen that the assortment is quite extensive, and there is plenty to choose from. But what should be guided by this? Of course, no matter how we would like, but almost always the budget is limited. Therefore, first of all, we have to proceed from our financial situation. As mentioned above, plastic products have a very reasonable price, while their appearance is not much inferior to analogues made from natural materials. But, in addition to the price, you should also pay attention to the fact that these decor elements harmoniously fit into the design of the room..

For arches, you should purchase special arched corners of different sexes, they ideally retain their position when bent. Please note that the wider the sides of this element are, the more loads it can withstand.

What glue to use

In addition to the corners themselves, we also need an adhesive composition with which we will fix the selected element. When choosing it, it is worth remembering that quite often, especially if it is necessary to glue a narrow product, the glue seeps out from under it and, naturally, falls on the walls. As a result, the latter can be damaged, which, accordingly, will negatively affect the appearance of the room as a whole. Therefore, you should choose such an adhesive composition, the excess of which can be removed from the surface..

Basically, the corners are glued to new slopes, but nevertheless, check that the surface is relatively flat, since no decoration can hide large bumps. It should be free of foreign objects such as nails, self-tapping screws, etc. It also needs to be degreased, for this purpose white spirit is suitable.

DIY decorative PVC corner installation

Plastic (PVC) corners are very widely used in interior decoration, they are installed on the slopes of plastic windows, they frame the outer corners of the walls and the slopes of doorways. In this article, we will take a closer look at the process of installing a PVC corner on the slope of a plastic window, and also consider how to make a neat joint between two corners..

Step 1. Making the markup. We need to attach a PVC corner to the slope and make a mark along the edge of the vertical slope:

The minimum length of the applied angle (L) must be greater than the height of the slope (a) by the width of the angle (b), taking into account a small margin (c):

For example, if the height of the slope is a = 1500 mm, and the width of the corner is b = 30 mm, then the length of the corner must be at least a b c = 1500 30 15 = 1545 mm.

Step 2. Make a cutout on the PVC corner, removing one edge, as shown in the photo below:

We apply a corner to the slope:

The corner fits perfectly, you can proceed to the next step.

Step 3. The plastic corner is glued only to the slope, this is enough for fixing, so we apply glue only to one of the edges.

“How to glue the PVC corner?”

As glue, you can use “Moment Montage”, “QUELYD Masterfix” and their analogues. It is not recommended to use super glue, as it will be almost impossible to correct mistakes..

Glue is applied to the inner surface of the corner in a dotted manner or in a thin strip:

We fix the PVC corner with masking tape (while the glue dries):

Step 4. Repeat step 1-3 for the right slope:

Step 5. We mount the corner on a horizontal slope. The length of the corner is taken with the same margin as for the vertical one, but taking into account both sides. Marking is also performed, and then cutouts are made and the corner is glued to the slope:

Step 6. Mark the place of the cut. The corners will mate at a 45 ° angle:

Step 7. Carefully cut two corners at once. It is very important that the knife is sharp:

A Simple Trick to Install Baseboard Corners Perfectly

Step 8. Cover the joint between the corners with white acrylic sealant. After the glue dries, remove the masking tape. Installation of PVC corner is complete.

How can you make your work easier?

Use cardboard layouts. If this is your first experience, then a life-size cardboard layout will not hurt. It is quite simple to make it. But he will clearly show how to make corners for ceiling plinths of any size.

Attach a sheet of paper to the ceiling using masking tape. Sketch out the outlines of the corner as they actually look. Remove the sheet, and, based on the measurements taken, make a template from thick, thin (not corrugated) cardboard, plywood or fiberboard. It will help you adjust the corners as accurately as possible..

The very joint of the ceiling plinth may not fit exactly because of the existing irregularities in the wall. Minor flaws are remarkably masked with either a putty mixture or a suitable sealant. At the same time, the joint of the ceiling plinth will look perfect if you use a special tool.

In the case when you need to make repairs on a large area with your own hands, it makes sense to rent or borrow from friends for a while a miter saw with a rotary platform that allows you to set any thread angle in the vertical and horizontal plane. With its help, cutting can be done in a matter of minutes. The main thing is to correctly measure the angle at which the walls and ceiling join. The saw is leveled to the desired position and the cut is made. Fast and convenient. At the same time, there is no rigid framework, like a miter box. And you can set any angle value.

How else can you get the required foam blank? You will need an instrument called a string. It consists of a power supply unit, as well as a nichrome thread stretched over the table at a suitable height. In this case, the workpiece is placed on top of the nichrome according to the markings on the plinth itself or on a flat template under the string. The ceiling plinth is cut like butter, and the question of how to make corners of a non-standard size or shape loses its sharpness.

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As you can see, you can make a beautiful transition from walls to ceiling in any situation, using various tools, as well as the knowledge you have acquired..

Stupid

In this case, joining the ceiling plinth in the corners is complicated by the fact that the finished internal elements will protrude from the wall by a few millimeters. This is ugly and ruins the whole look. What can be done?

There are some simple solutions:

  • heat the skirting boards made of polystyrene and plastic with a hairdryer until softened, then give them the necessary shape by expanding their “shoulders”;
  • plaster models cannot be corrected, therefore, the side elements are adjusted through the gash at a given angle, and the material is slightly shrunk on the back side so that the fitted joint looks good.

Making a corner using a miter box

A carpentry tool such as a miter box is specifically designed for cutting various materials that are subsequently planned to be mounted at right angles. Its design, or rather its appearance, may be different, but the principle remains the same..

There are variations of the tool with the ability to manually adjust the cutting angle, but the simplest miter box looks like a wooden tray with vertical slots in the walls for the possibility of inserting a hacksaw (see How to paint a ceiling plinth – the final touches of the repair). It allows vertical trimming at 45 or 90 degrees. If you wish, you can make something similar to such a tool yourself..

There is also a more complex tool in design, with which you can make the corner of the ceiling plinth. It is presented in the form of a plastic tray with similar slots in the side walls for a hacksaw, but, in addition to angles of 45 and 90 degrees, there is also a slot in 60 degrees, as well as the possibility of not only vertical cutting of the material, but also with an inclination of the hacksaw blade at 45 degrees.

Miter box for cutting ceiling plinth

As for professionals, they usually use a miter box with a swivel mechanism, which allows you to fix the hacksaw at almost any angle in relation to the workpiece (see How to glue a ceiling plinth to a stretch ceiling: simple solutions to a complex problem). If the first two types of tools are suitable only in cases where there is an even catch in the room (90 degrees), then the third is effective regardless of the magnitude of the angles..

It is important to have with you!

Piglet bookmark

This time, the corner will need pink. You also need to cut out ears and a patch from cardboard. Of black and white paper – eyes.

We glue all the components of the pig, finish drawing the piglet and the pig is ready.

Here he is on the book, comfortable and funny. You can also make a corner in the shape of a heart..

Today we will bookmark a corner.

2.

3.

four.

five.

bend over or bend over.

6.

8.

ten.

To make a big one you need:

eleven.

12.

attach to a regular corner.

thirteen.

External slices

How to join ceiling skirting boards at the outer corners? The outer corner is formed by shortening the lower edge of the profile, since the upper perimeter will be larger than the lower.

The corner for the ceiling plinth is selected according to the size and shape of the fillet. Use items from the same collection and batch.

Features and methods of forming the corners of ceiling plinths

You need to understand that corners in rooms are not only internal, but also external, which, in fact, is the main difficulty of our task.

However, the problem is completely solvable and it can be solved in several ways:

  • Firstly, it is possible to avoid cutting the material altogether by purchasing special fittings. Corner pieces for skirting boards are both internal and external corners that are attached to the corners of a room. The ends of the outer skirting boards are inserted into this corner for the skirting board. This option is the simplest one that does not require any special skills..

Special element for arranging the corner joints of the ceiling plinth

  • Well, the second option is trimming the edges of the skirting boards at a certain angle, which will ensure a tight and even fit of the skirting boards to each other. Cutting, in turn, can be done in two ways:
  • using a special template tool called a miter box;
  • manually according to the markup made by a certain method.

How to Make Corners – Bookmark Corners for Books: Funny Animals

Plastic ceiling skirting boards and their installation

PVC ceiling skirting board 3m

No matter how carefully and diligently you carry out the repair work, there are always minor irregularities and defects. Most often they are observed in the area of ​​joints of different surfaces and materials. And here special decorative elements come to the rescue. And for each case they are different. For example, the joints of PVC ceiling panels with walls are masked with ceiling plinths for plastic panels. They differ from their polystyrene and plasterboard counterparts by the presence of a fastening lamella added along the entire length. It is with her help that such a plinth is attached to the ceiling and walls..

Before purchasing any finishing material, you need to calculate the required amount. And it’s very easy to do it.

First, measure the length of all the walls in your room, not forgetting the ones on which the doors and windows are located. Add up all the values ​​obtained – this will be the perimeter of the room. A plastic ceiling fillet (as this decorative element is also called) usually has a length of 3 meters. Divide the resulting value by 3, round to the nearest multiple of three, and add one more – just in case.

This is exactly the amount of material you need to close the joints..
How to do it right?

Installation of skirting boards

The purchased blanks need to be “cut” to the size of your room. The length of the walls is already known. According to these dimensions, using a miter box and a hacksaw, cut pieces of the required length with cuts at the desired angles..

There are two ways to fix the ceiling plinth for PVC panels:

  • Just hang it on the edge of the ceiling surface. The remaining small gaps between the wall and the fillet can be filled with a sealant of the corresponding color.
  • Install a standard UD profile under the ceiling and attach the ceiling plinth to its lower part. In this case, gaps may also remain, and not only under the fillet itself, but also under the profile. They need to be sealed using the same sealants..

Ceiling skirting board

If for some reason none of these options suits you, then the plastic skirting board for the ceiling can be installed directly on the wall under the ceiling using fasteners.

To do this, make small holes with a drill in the extended wall under the pressure lamella. It is good if they turn out to be slightly smaller in diameter than the intended fasteners. Further, depending on the material from which the wall is made, parts for fasteners are selected and with their help a fillet is installed. And only at the end a PVC panel is inserted into the groove.

This method is more reliable, accurate and, if successfully performed, gives a better aesthetic result. But this requires one condition. The walls to which the ceiling plastic skirting board will be attached should be as flat as possible. Otherwise, the decorative element will only emphasize their curvature, and may also not withstand the stress of bending and simply break..

In general, plastic fillets are the final touch in the decoration of your home, allowing you to add completeness and integrity to the renovation..