The quality of the ceiling finish greatly influences appearance premises. That’s why they try to do everything perfectly, or very close to it. The finishing touch to the design is ceiling plinth. They give the finish a finished and holistic look. The planks themselves smooth surfaces easy to install: using special glue white, but problems arise with the design of corners. Without knowing how to make the corner of a ceiling plinth correctly, a lot of material is spoiled. We’ll tell you how and with what to cut it in the corners.
What is it made of and what is it called?
The very first plinths on the ceiling were made of plaster. They were cast in special molds, then installed on the ceiling using mortar. Such figured decorations were called fillets. Today you can rarely see them: they are expensive, but in appearance they are almost no different from cheaper options. And this name is almost lost.
The most popular ceiling plinths today are made of polyurethane or polystyrene. They are inexpensive, look great, are easy to install, and have a wide range of profiles and patterns. The width can be from 5 mm to 250 mm. They are used in almost any room, decorated in any style. Exception - Most often used here wooden crafts— style dictates its conditions.
There is also a similar plastic finish. It is mainly installed in bathrooms. But even in damp rooms you can safely install polyurethane strips - they are not afraid of dampness.
You need to cut ceiling plinths in corners from any material using one of the methods described below. The only exception is plastic skirting boards: You can create such a corner only using ready-made corners.
What and how to cut
Working with skirting boards from different materials implies the use different instruments for cutting. When working with wooden ceiling plinths, it is more convenient to use a wood saw. All others, including plastic, foam and other polymers, are better cut with a metal blade. This results in a smoother cut and less burr. Saws are usually used when working with a miter box.
When working with foam baseboards without special tools, cut them with a good stationery knife. Its blade is quite thin and even, the cut is smooth and not wrinkled. If you work with polyurethane or polystyrene with a saw, do not press hard: you can dent it.
In general, to get a little used to the tool and material, take a piece and practice on it: cutting, sawing, trimming. This way there will be fewer problems during work.
How to get the right angle
The most problems when working with ceiling skirting boards arise when decorating the corners. Since the surface of the products is complex, simply cutting at the desired angle will not work: it is also necessary to trim so that they fit together and, preferably, without large gaps. In fact, there are several ways to make the corner of the ceiling plinth ideal (or almost).
Using a miter box
If the corners and walls in the room are smooth, you can use a special carpentry tool- miter box. This is a gutter in the shape of an inverted letter “P”, in which lines are marked for cutting at an angle of 90° and 45°. The part to be cut is placed inside, and a saw is inserted into the guides. The part is held in place and cut at the required angle.
In the case of baseboards, not everything is so simple: they must simultaneously adhere to two surfaces, so they need to be pressed against one or the other wall of the miter box. When working with ceiling ones, they are pressed against the side closest to you.
The sequence of actions when finishing the outer corner is to make a cut at an angle of 45 degrees. Place the miter box in front of you. You try on how the plinth will be positioned, determining which part of it will be attached to the ceiling. In order not to get confused and to cut the ceiling plinth correctly, place the plank that will be located on the right on the right, and the one on the left on the left.
Press the part that ends up on the ceiling to the bottom of the miter box. The second side is closer to you and raised. You rest it on the wall of the device so that it does not wobble when cutting. That is, the front part of the plinth turns away from you. Make the cutting direction as shown in the photo below. By putting the two cut pieces together, you get a protruding corner - an outer or outer corner.
How to make an outer corner of a ceiling plinth using a chair
First place the sawn parts in place “dry”, without applying glue. If the geometry of the corner turns out to be not so ideal, you can correct it a little with a knife. It is easier to cover up small errors with special putty.
The situation with the inner corner of the ceiling plinth is very similar. First, try on which side will be on the ceiling, press this part to the bottom of the miter box, rest the second part on the wall closest to you and make cuts as shown in the photo below.
And again, first try it on without applying glue, and if necessary, adjust it slightly. Then apply thin strip glue on both surfaces that will be glued to the wall or ceiling.
Your version of how to use a miter box correctly is shown in the video.
How to make a corner of a ceiling plinth without a miter box
Few apartments or houses have angles exactly 90°. Small deviations can be easily corrected after trying on. But not always. Then you have to mark everything “in place” - under the ceiling.
You will need a finely outlined pencil (hard - it is not so visible on the ceiling, but leaves fairly clear marks close up), a small piece of plinth, a ruler and a good stationery knife if you are working with polyurethane (polystyrene) baguettes or a metal saw for working with other materials.
Place the plinth against the corner and draw along the outer edge with a pencil. Apply to the other side of the corner and also mark. You have a cross on the ceiling, the center of which marks the place where the ceiling plinth strips should meet (look at the photo). Having placed a piece of plinth in the corner that will be glued there and resting its end against the wall, transfer the mark to it.
How to make corners on ceiling plinths without using special tools
Now take a ruler and connect the edge of the baseboard with the marked mark. If you just put the plinth on the table and cut it along the line, the two parts in the corner still won’t fit together: it will get in the way inner part. It can be trimmed later by trying it on the ceiling. The second way is to install the piece that needs to be cut on the table with the part that will be on the ceiling. And cut along the line, but holding the knife at an angle of about 45°. You will still need to make adjustments, but much less (and less likely to make mistakes).
Repeat the same operation with the second bar. You attach it to the right wall, rest the end against the adjacent wall, mark the place where the cross is drawn, draw a line and then cut it off. Adjustment is carried out “dry” without applying glue.
You repeat exactly the same steps for the outer (protruding) corner. Now you know another way to make a corner of a ceiling plinth, without a chisel or other special devices.
Using decorative corners
There is another, easiest way. For skirting boards made of polyurethane or polystyrene, use ready-made, factory-made decorative corners. They are installed in a corner, and the strips are glued tightly to them. Trimming them if necessary is very simple: a few millimeters with an ordinary stationery knife.
How to join in corners
If the installation of the first corner is completed, you can assume that you have already learned how to do almost everything. “Almost”, because you still need to learn how to connect the corners and cut the planks to length. When some part has already been glued and there is a small distance left to the corner, how can you not make a mistake with the length? The answer is simple: leave a reserve.
At first, you can cut a piece 10-15 cm longer: you will have the opportunity to redo it several times if something doesn’t work out right away. Then you make an angle in the manner described above, try it on dry, adjust everything so that the result suits you. Only after this can you place the already cut strip in the corner and mark the place to which it can be shortened. You need to cut exactly 90°. It is not necessary to use a miter box. Just try to place the knife (hacksaw) perpendicular to the surface.
To install a continuous plinth, it is necessary to correctly connect it in the outer and inner corners, exactly as with the adjacent elements and the wall. In this article we will talk about how to properly cut down a ceiling plinth.
Methods for cutting corners on ceiling plinths
There are three main methods for cutting corners on skirting boards:
- using a miter box;
- using a drawing on the table;
- using markings on the ceiling.
How to properly cut down a ceiling plinth using a miter box?
What is a miter box? This is a special tool that looks like a tray with slots. The grooves are designed for precise cutting of corners on bars, slats and other elements. As a standard, the miter box has stencils for angles such as 45, 60, 67.5, 90 degrees.
Formation of internal and external corners
How to saw off a ceiling plinth for an outer corner? In order to cut it off, you need to insert the plinth into the miter box on the side from which the element will be fixed to the ceiling. Thus, the ceiling baguette is applied to the near wall of the miter box. After this, the plinth itself is cut along the gutter, which has a slope of 45 degrees.
The fillet is applied with the bottom part to the top of the miter box. Thus, we will see the element exactly from the angle in which it is attached to the ceiling. Do not forget that the lower point of the cut will border the corner of the wall, that is, it will be the extreme point of the profile.
In order to cut the left plinth of the outer corner, the hacksaw is positioned from left to right, and for the plinth on the right, on the contrary, from right to left.
What should you do to cut off the inner corner of the left plinth? In this case, the bottom extreme point of the element will protrude, so the left fillet is cut from right to left, and the right fillet is cut from left to right (read: " "). Thanks to this, we will get an internal angle.
Cutting corners using a drawing on the table
But how to cut down a ceiling plinth if you don’t have a miter box in your arsenal? You can do it differently. To do this, we need a drawing on the table that will imitate a stencil with corners.
First, two lines are drawn in parallel on the surface, the distance between which is equal to the inside of the miter box groove, namely 8.5 cm. Now, using these lines, a square is made in which two diagonals are drawn. Thus, we got guide angles of 45 degrees.
Cutting off the inner corner of the left skirting board
Subsequent operations are no different from how we made the inner corner using a miter box. Only in this case we press the plinth not against the side (which simply does not exist), but against the drawn line. To make it easier for you to level the baseboard, place a box against the line. This will give you a surface on which to rest the baseboard. Remember that the baseboard should not lie directly on the line. This is why the box is used.
When cutting, the bottom of the baseboard will be facing away from you. For an external corner, the upper corner of the profile will be protruding, and for an internal corner, the lower corner will be.
Marking the ceiling for installing skirting boards
This method is used if the corners of your room are not straight, that is, not 90 degrees. In this case, cutting according to a miter box or stencil on the table will not give the desired results.
First you need to make a simple drawing. The plinth is placed in the corner and a line is drawn along its level on the ceiling. A similar operation is performed on the adjacent wall. Now, if you place the baseboard against the wall, one of the lines will intersect it (see photo). This point and the bottom corner of the baseboard are on the cutting line. Thus, the required cutting angle is obtained.
To form external corners, a similar drawing is made. Only in this case the upper part of the plinth will protrude.
For cutting skirting boards from hard materials(wood, plaster, polyurethane) use a hacksaw for metal. Fine teeth allow for an even cut. But this does not mean that a hacksaw with fine teeth will achieve the same results.
A sharp construction knife is used to cut the corners of the foam baseboard. Cutting with a hacksaw this material it is forbidden.
Sometimes you need to cut a particular part or product at a certain angle. As a rule, you need to cut baguettes, fillets, platbands, baseboards and other similar interior elements at an angle of 45 degrees. Anyone can cope with this task. The main thing is not to rush, don’t be nervous and everything will work out.
Buy ready-made corner elements
Of course, the easiest way is not to bother with trimming this or that part, but to buy a ready-made one that does not need processing or trimming. Such parts and elements are sold today everywhere in large supermarkets or smaller stores.
For example, as for baguettes or fillets, special corner elements are sold for them that fit perfectly into the corner and do not need to be trimmed. They just need to be glued into place and pressed well.
Method of joining platbands without trimming
Today, platbands are often not cut at an angle and then joined together, but the joints are made at right angles. This method of connecting platbands does not require any special trimming, which is very convenient. In addition, this method looks more modern and attractive.
Cutting at an angle using a miter box
If you still need to cut this or that part at an angle, then you should stock up on a miter box - a simple device that looks like a small box. The miter box has slots that are designed for a saw or a long sharp knife. Of course, these slots are made to form a smooth and precise 45 degree angle.
However, a miter box can have many slots at once, at different angles. This is convenient because with the help of one device you can trim any parts at different angles.
There are adjustable miter boxes on sale. The slots in such a miter box can be adjusted, which allows the master to set exactly the angle required in the this moment. In particular, it is quite simple to move the slits of such a miter box to a position of 45 degrees.
Now you can trim the workpiece simply. A baguette, platband or plinth is placed in the miter box, after which a saw is inserted into the slots and the excess is simply cut off. The angle ends up being perfect, exactly 45 degrees.
What to do if there is no miter box? Very simple. You need to make a template according to which it will not be difficult to transfer the necessary markings to the workpieces. As a template, you can choose thick cardboard or anything else that will be appropriate in this case.
Cutting parts at an angle using a protractor
You can cut the part at an angle using a protractor. This is a measuring tool that is easy to use, and which is designed specifically for measuring angles or making the necessary markings on certain parts. The protractor is applied to the part, the angle is marked and the markings are made with a pencil. Using these markings, cutting the workpiece at the desired angle will not be difficult.
Using Templates
If you don’t have a protractor, miter box or ready-made corner elements, you’ll have to look for a suitable template. Of course the template must have desired angle. It is applied to the workpiece and the workpiece is marked with a pencil. This is one of the most simple ways achieve the desired result.
Trimming "on the spot"
The walls, floor and ceiling will not always be perfectly flat in practice. Most often they have irregularities. For this reason, there is no need to cut the workpieces at clear and precise angles, because anyway they will not fit perfectly.
Instead, it is sometimes convenient to trim the same ceiling plinth in place. That is, first they glue one strip of the plinth, trim it in the corner, and cut the second strip under it.
Of course, it is hardly possible to cut the workpiece perfectly. However, if a small gap appears in the corner, it can always be covered with putty or gypsum plaster. Nothing special.
Video: How to cut the corner of a plinth or baguette without a miter box
During renovation or construction, there is often a situation when it is necessary to make a joint between two parts so that it fits perfectly into corner rooms. If it is necessary to cut corner at 45º, proceed in one of the following ways.
You will need
- - ruler;
- - pencil, pen, marker;
- - paper;
- - protractor;
- - miter box;
- - knife, scissors, jigsaw and other cutting tools.
Instructions
If the surface of the material is large enough to allow marks, draw one of the cut lines using a ruler. Then draw a perpendicular to this line using corner A notebook or any object with smooth edges, such as a sheet of paper or a book.
Using a ruler, mark equal segments on each side of the corner, for example, 10 cm. Measure the distance between the resulting points and divide it in half. Connect this point to the vertex right angle. You received corner at 45º, now cut the material along the drawn lines using scissors, a knife, a jigsaw or other tools.
Mark one of the cut lines, take a protractor and apply it to the line. Find the 45º mark on the scale and connect this point to the center of the protractor. Cut the material along the marked lines using available tools.
Cut paper, film, foil or other easily bendable material as follows: find or draw a straight line corner(for a sheet of paper this is any of its corners). Fold the sheet so that adjacent sides match. Cut the sheet along the fold line.
If you need to cut corner at 45 degrees several times, for example, when adjusting the baseboard, make a template. To do this, take thick cardboard, draw a square on it and cut it diagonally.
In order to cut materials at an angle of 45º in large volumes, buy a miter box; this tool can easily be found in any hardware store. Place the baseboard or batten inside as it will be positioned in the space, and cut it with a knife, jigsaw or other tool.
Sent by: Nikolaeva Kristina. 2017-09-15 21:54:59
How to cut ceiling plinth so that the corners are perfect
In the corners of the room, when installing ceiling plinths, for example, made of polystyrene foam, small inconsistencies can often arise that spoil the overall appearance of the room. This, of course, can and should be avoided. So, how to cut a plinth straight with your own hands? The first assistant in this matter will be a tool such as a miter box. But buying one for one-time repairs is not always advisable. Although, if you decide to help all your relatives and neighbors with repairs, and in the future also earn money from it, then you need this device.
Example of ideal angles
If you still limit yourself to just installing the plinth at home, then it is not necessary to use such a carpentry tool. You can do without it. In order to consider all the ways to properly cut a ceiling plinth, let’s find out what it consists of.
To understand how to properly cut a plinth, you need to understand its composition. This will help you choose the right tool and cutting technology.
- Styrofoam. The price and strength of this material are the lowest. But since we are creating a decorative decoration for the ceiling, strength is not particularly required.
- Ceiling plinth made of polystyrene foam is more dense. than regular foam. To cut such material, the most ordinary knife is used.
Tip: sharpen the knife well before use. This will eliminate the presence of torn edges at the incision sites.
How to cut a skirting board straight
- Tree. Here you will have to put more effort into processing. For wood, use only a hacksaw.
Tip: the smaller and more frequent the saw tooth, the smoother the edges will be. You can even use a metal cloth.
- Plastic. How to cut plastic baseboard? The same method is suitable here as with wood - a saw, a hacksaw. Alternatively, you can also use a grinder.
Using a regular hacksaw blade
Cutting methods
The product is installed around the perimeter of a rectangular room. Trimmed to finish right angles. Therefore, we will consider how to cut the baseboard at 45 degrees.
Cutting using a miter box
What is a miter box? This is a special tray made of wood, aluminum or plastic with grooves provided to guide the saw at the desired angle.
Here are brief instructions for using such a carpentry tool:
- Preparation. We take the product and put it in the tray. We align it to the position in which it will be installed on the ceiling.
- Cutting. With the other hand, insert the cutting tool into the groove. It could be a knife or a hacksaw. And we cut it boldly. The device will not allow you to miss the intended place.
You should know: the metal blade is also suitable for cutting foam plastic.
- Treatment. The wooden baseboard may need to be further processed with a file to align the edges of the cut. Plastic or foam can be trimmed with a knife, as long as it is sharp enough.
Tip: when cutting, do not put pressure on the product. The polystyrene foam may crumble, and the wood may even split.
This miter box is so easy and simple to use
Cutting without a miter box
If you do not have such a device, and you are not going to purchase it for one-time use, then you can use the following methods on how to cut the baseboard at 45 degrees.
- The first way is to make this simple carpentry tool yourself. To do this, knock down the most ordinary wooden tray. Then we measure the lines of the slots using a protractor or a school square. We cut the grooves and we have a primitive device ready.
- Second way. How to cut a plinth at an angle is even simpler. It is especially painless to use in cases where the corners of the room are not even.
We don't need a tray. All you need is two boards bent at 90 degrees and a cardboard stencil with a line drawn for orientation.
- Third way. In this case, we don’t knock anything down at all, but simply use a table placed against the wall or any other similar structure.
We mark future joints directly on the product itself, on the wall and on the ceiling. We place the plinth the way we are going to mount it and cut according to the marks.
The simplest way without the use of special devices
Remember: when cutting, keep the tool strictly vertical to obtain a right angle.
Features of cutting various angles
We have discussed the general technology of how to cut ceiling skirting boards.
How to cut a part or product at an angle of 45 degrees
But there are also some nuances when cutting different corners of this product.
Indoor floor
View of the internal corner
First, let's set the left and right plinths at right angles. We insert the left product into the miter box, applying it to the outside, and cut off the left inner corner. Then we perform a similar operation with the right one. Ready.
External floor
View of the external floor corner
In this case, using a miter box, we set the mode not to the inner, but to the outer edges. Otherwise the operation is similar.
External ceiling
View of external ceiling corner
We already cut the ceiling corners on the inside of the device.
Inserting the left plinth into the miter box, cut off the left outer corner. We substitute the right one – the mode is right outer edge.
Internal ceiling
View of the internal ceiling corner
By analogy with the outer corner, we also cut the inner one. Just cut the inner left and right edges respectively.
It is important to remember: the product is always attached to the ceiling upside down. Therefore, insert it upside down into the miter box. This will help you cut the baseboard correctly.
- Install the plinth strip only when you have already prepared the next one. It's better to do this on the floor rather than near the ceiling.
- Patience, patience and more patience. Sometimes joints have to be corrected more than once. Don't be nervous, be careful, and everything will work out.
- By using polystyrene foam and plastic, you can afford to leave small gaps at the corner joints. The putty hides them well. Be careful with the tree.
Results
Effort pays off
If you still have any questions, then the visuals in this article will help resolve them.
By carefully following the recommendations and taking into account the characteristics of the material you are working with, you can give your ceiling beauty and originality. Choose the method you like and go ahead! You will succeed (read also about the advantages of polyvinyl chloride skirting boards).
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Such an angle occurs quite often in geometric problems, so it is important to understand what it is and how to construct it.
The easiest way is to construct a 45 degree angle without special tools (like a protractor) on a sheet of notebook in a box.
Cutting the corners of the ceiling plinth: tools and cutting methods
To do this, you need to understand that an angle of 45 degrees is equal to half a right angle, that is, an angle of 90 degrees:
45 = 90 / 2.
Using a ruler, you can easily construct a 90-degree angle (that is, a straight line) on a squared notebook sheet:
To do this, you need to select one point at the intersection of the cells and draw a vertical and horizontal line from it.
To construct half an angle of 90 degrees, you need to draw a straight line from an arbitrary point, and the second straight line needs to be drawn along the diagonals of the cells. It is convenient to mark several such points on the diagonals of the cells (as in the figure), and then connect them with a straight line:
After connecting these points we get half an angle of 90 degrees, that is, an angle of 45 degrees.
It's also helpful to remember that a 45-degree angle is an acute angle, since it's less than 90 degrees.
To construct a 45 degree angle, it is not necessary to put several points on the diagonals of the cells. To do this, it is enough to mark one such point and connect this point with a straight line to the starting point of the first side of the angle.
