How to cut a baseboard at 45 degrees

Sawing at 45 degrees

There are special tools for sawing, which you can buy in any construction store. The first of these is the jigsaw. This is a frame with special guides, which can be used to saw the slats at 90 and 45 degrees. The convenience lies in the fact that you can saw profiles standing on the edge and lying flat and get different types of angles for different types of joints. In our stores we have sample files, so you know what to look for if you’re going to buy them. On work with a jigsaw let’s dwell in more detail.

Step one. 1. Take the baseboard 2. Lay it flat, face up 3. Adjust the jigsaw to a 45 degree angle.

Step two. 4. Remove the corner with a 45 degree notch. 5. Take the whole skirting board (you can take a small cut, but make sure it is big enough) and put it face up. 6. Put the sawn slat squarely on the whole slat, combining them until it is a right angle. 7. Run straight fishing line along the cut of the superimposed part of the baseboard.

Step three. 8. Take the whole plank with the marking and put it into the jigsaw with the marking facing upwards. 9. The marking should overlap with the notches at 45 degrees. Check it. 10. Saw off the corner along the marking 11. Slide the strip with the sharp corner to the part of the jig where the notches for straight 180-degree sawing are located.

Step four. 12. Sawing off the corner in a straight line. It should turn out an even triangle. this is what we need! 13. Align the triangle and the baseboard in reliefs 14. Glue the parts together and attach the resulting skirting board to the wall. You have a great end piece with a nail file!

Step one. 1. Take the skirting board 2. Place it with its base on the bottom of the joiner. Place the back side of the skirting board against the edge (uncoated). Make a 45 degree notch on the jigsaw. Note the space between the sawed corner and the side of the jigsaw should be a sharp angle. 3. Saw off the corner piece.

Step two. 4. Take a new, straight skirting board. You can take a short piece. 5. Place it with its base on the bottom of the jigsaw. Let’s lean it against the edge with the back side (uncoated). Now make a 45 degree notch on the jigsaw. Attention, it must be on the other side!) from the first notch! Note the space between the sawed corner and the wall of the jig saw must be at an obtuse angle. 6. Sawing off the corner. We need it! 7. Aligning the skirting board and the corner. You have a great end piece with a fillet! Sawing the outside corner

Step one. 1. Take the skirting board 2. Place it with its base on the bottom of the frame. Leaning against the edge with back side down (uncoated). Let’s choose a 45 degrees notch on the jigsaw. Notice the space between the sawed off corner and the wall of the jig saw must make a sharp corner. 3. Sawing off the corner.

Step two. 4. With the second skirting board repeat the previous steps. Take the baseboard. 5. Put it with its base on the bottom of the chair. We touch it to the edge with the back side (without the covering). Now we make a 45 degree notch on the jigsaw. The only difference from the previous step. you need to lean against another 45 degree notch on the same side. Please note that the space between the sawed off angle and the wall of the jig saw has to make a sharp angle. 6. Sawing off the corner. 7. Aligning the two skirting boards. We have a perfect outside corner.

Step one. 1. Take the skirting board 2. Place it with its base on the bottom of the jigsaw. Leaning against the edge with the backside down (uncoated). Selecting a 45 degree notch on the jigsaw. Note the space between the sawed corner and the wall of the jigsaw should be a blunt angle. 3. Sawing off the corner.

Step two. 4. With the second rail repeat the previous steps. Let’s take the skirting board. 5. Place it with its base plate on the bottom of the jig saw. Left side of the skirting board against the edge (without cover). Select a 45 degree notch on the jigsaw. The only difference from the previous step is that you have to lean against another 45 degree notch on the same side. Note the space between the sawed corner and the wall of the jigsaw should be an obtuse angle. 6. Sawing off the corner. 7. Align the two skirting boards. You have a perfect inside corner.

Another tool is the mitre saw. This is the device where the saw blade is aligned with the stand. On the stand there are marks in a circle like on a drawing protractor, they measure the right degrees by which you can turn the saw. All the work boils down to setting the saw blade to the proper angle, turning the device on and immediately sawing. This is the fastest and easiest way to make the cuts. And in order not to buy an expensive tool that you will need once in the next 10 years, you can rent it. Since the speed of the disc is high, masters recommend gluing the area to be sawed, masking tape, so that no microscratches are formed, and the material does not crumble.

How to fix minor defects But even if you can not rent a tool and you doubt that you can even cut the corners, you can always use the filler glue “ADEFIX F”. It is a dense, white, thick composition based on acrylic micronutrient. When applied, the mass fills the voids and once dry, the joint can be sanded and painted if needed. And even if there are no big cracks, chips or irregularities, you can still buff out the seam with this putty. then the baseboard will look absolutely solid and integrated. But acrylic adhesive, like any other water-based sealant, can not stand direct contact with water and high humidity. Moisture will simply wash the acrylic particles out of the cured joint. If the joint is painted together with the skirting board, the acrylic, of course, insulates from moisture, but in very wet areas, such as bathrooms, to put skirting boards glued “ADEFIX F” manufacturer does not recommend.

Yes, on the one hand, to fillet the corners at 45 degrees, you need a little trouble. It is especially frustrating when, for example, you take a good, high-quality, expensive polystyrene skirting board, and then to install it you have to put some extra effort. and you are afraid to damage it, and you want to have everything at once for a high price, to work as little as possible. But, on the other hand, scoring is a routine construction operation, for which they came up with both special tools and grout for joints, if something goes wrong. So the question: “And how to decorate the corners??”When choosing a skirting board should not stand. You can not pay attention to the technical points, and be guided solely by your own preferences and design ideas. Have a simple repair!

How and what to cut a plastic baseboard?

The floor surface has a finished appearance only after the skirting board is fixed. Manufacturers offer products made of various materials, but plastic products are especially popular. They have a relatively low cost and are easy enough to install. We propose to get acquainted with the main varieties and learn the secrets of installation work when decorating the outer and inner corner of the floor surface, learn what tools you can use to cut off excess material and their distinctive features.

The method of cutting with a wire cutter

The most popular version of fixing using household tools. A well-known carpenter’s helper, helping to make the cut at the right angle. Usually it is a tray, wooden or plastic, which has vertical slots for the blade at 45 and 90 degree angles. How to cut the corners of the ceiling plinth with a mortiser?

Firstly, the material should be attached to the ceiling, set its plank in the jigsaw. The tool must match the position of the product. Holding the baseboard with the left hand, choose a position for the cutting tool (hacksaw) at a 45 degree angle. Cut the material without excessive pressure. After that, cut the counter slat, set it to the far wall of the mash.

Holding the working material with the right hand, select the position of the hacksaw at 45 degrees and cut.

In rooms with even corners and walls, cutting ceiling skirting boards with a plier, as a rule, is not very difficult. The tool has the form of a U-shaped trough with a saw guide made at an angle of 90 and 45 degrees. Placing the element requiring cutting inside the device, the saw is inserted into the guides. In the process of cutting the baguette must be firmly held in place, to avoid defects. It is difficult enough to cut a skirting board, as it is necessary to achieve simultaneous its adjoining to two planes. If the width of a molding is small, it is more convenient to press it to the near side. “How to Cut Ceiling Baseboards. Tools and Cutting Rules”.

How to cut the corner of the ceiling plinth, if the outer corner is designed:

  • Before you cut the corners of the ceiling plinth with a wire cutter, a 45-degree angle is made.
  • The chair is set in a comfortable position. This will make it possible to determine the exact position of the skirting board: first of all it concerns that edge of the product which will adjoin to the ceiling. To avoid confusion, it is most convenient to place the right-hand slat on the right, and the left-hand slat on the left.
  • The surface is pressed against the bottom surface of the jigsaw. In this case, the second part is lifted, being the closest. It should be so put on the wall of the jig to avoid during the work it wobbles. In this arrangement, the front side of the product is turned to the opposite side.
  • The cut should be made at an angle of 45 degrees from yourself. If everything is done correctly, when folding the two halves you get a nice outside corner.

After the correct sawing of the ceiling plinth in the corners is completed, both pieces should first be attached to the ceiling “dry” to check the coincidence of the geometry of the corner. If necessary corrections are made by trimming with a knife. Small gaps are easier to cover with putty, which should be treated with sandpaper after drying. As for the inner corner, it is much easier to make it.

The procedure, how to cut the ceiling plinth in the corners of the interior type is much like the above described. The first thing to do is to determine the side that will be adjacent to the ceiling. It is placed on the bottom of the skirting board. The back side is leaned against the near wall. After sawing the skirting boards on the ceiling is finished, the received fragments should be dryly attached to the corner, checking the quality of the junction. If necessary, fitting is carried out. After that, the installation of one and the second skirting board on the mounting compound. Small gaps in the corner can be filled with a special putty.

Need to trim the baseboards

Installing ceiling plinths (another name. fillets) must be carried out by the correct technology. However, there are no difficulties in it. the vast majority of fillets are mounted with glue. It is enough only to properly lubricate the product and hold it in the right place for a while.

But with how to properly trim the ceiling plinth in the corners, there are questions. In the arrangement of the ceiling there is always a need to handle corners. but their value can have both a standard value (e.g., right angle), and a certain deviation. The latter case is possible if the room has a complex shape, or if the repair was not possible to level it.

Tiles should be joined perfectly straight, regardless of the corners of the room. In addition, it is often necessary to cut baseboards on the outer corners. To properly carry out such work, you need to have the right tools and understand how to cut the corners of the ceiling plinth at home.

How to properly cut the corners of wooden baseboards

The most difficult and responsible process when installing floor and ceiling baseboards is to join the corners. Accurately and neatly executed work makes the interior beautiful, complete and coherent. To create a beautiful and correct joint, you need to know the trimming technique and installation methods.

Such different baseboards for your home

Currently on the construction market are skirting boards made of different materials. wood, fiberboard, plastic.

Wooden skirting boards are considered traditional. They have been used for a long time for plank, parquet and laminate flooring. They differ in relief or smooth outer surface, many models have special cable ducts. They are installed with self-tapping screws, nails or adhesives for fixing to the floor.

When installing on self-tapping screws, it is important to choose the correct design of the screw, on the tip of the screw must be a cutter, otherwise you have to do pre-drilling, which is your time.

Products are characterized by a long service life, environmental friendliness and safety. Can even be used repeatedly, dismantled and reinstalled with new floors.

It is necessary to paint baseboards with oils, varnishes or enamels. This is a prerequisite for their flawless appearance, long service life and a variety of shades and colors to match your interior.

How to cut and install wall baseboard trim 45° cuts

Wood of valuable species is not a cheap material, which affects the cost of the final product. To trim the corners here will require special tools.

Wooden skirting boards

Plastic skirting boards stand out for their simplicity and convenience. They have a clever design with cable troughs. To form corners, hide joints, disguise attachment points, there are corners and plugs. They can be quickly installed and come in many color variations. They do not need painting or puttying, they harmonize well with any finish.

Plastic skirting boards

Fibreboard skirting boards have an attractive appearance, are protected from dust and dirt and do not fade. It does not require special maintenance, it is easy to install. When trimming the edge of such a skirting, remember its fragility, carry out the work carefully.

Fiberboard floor plinth

Skirting boards made of any material are available in many color variations. That’s why it’s easy to find the right one for your interior décor. Often the color of the profile is selected by the shade of the floor or casings.

Trimming the edge of the plinth from different materials is not particularly different. The only difference is the density and density. Therefore, it is quite easy to work with wood.

Tools needed for work

  • Chisel. a special tray, consisting of three surfaces. Its sides contain special slots, located at certain angles to the axis. They guide the blade of the hacksaw at the right inclination when cutting.
  • A pencil, a erasable marker, a construction tape measure.
  • A knife, fine-toothed hacksaw or a good trimmer saw. Plastic baseboards can be cut with a regular sharp knife or a metal hacksaw.
  • Sandpaper, sanding the wooden skirting boards for painting is a must.
  • Fixing elements, self-tapping screws, nails, dowels.
  • Hammer, electric screwdriver.


baseboard, degrees

Before you start work, you first need to calculate the number of skirting boards you need. For this purpose, the standard length of the product (2.5 or 3 meters) is multiplied by the perimeter of the room and a 10% reserve for trimming is taken. For installation you need also fasteners, plugs.

How to properly cut the corners of the ceiling plinth

Ceiling plinth can be made of wood, plastic, foam plastic. The latter variant is the most common. It is reasonably priced, has many variations and is easy to work with. To trim it usually use a sharp knife.

Before you begin, you need to cut the material according to the perimeter of the room. Previously, you can draw a scheme on paper, noting all the corner connections.

Technology plinth corners trimming

Baseboard trimming in the jigsaw. Trimming technology

  • The right strip is placed in the jig from left to right. The base part, which will be attached to the ceiling, is laid on the bottom.
  • The profile is pressed firmly to the tray and cut at a 45º angle.
  • From right to left, another plank is placed and cut in the same way.
  • The corners of the cuts are docked at the attachment point and corrected with a knife (for foam and plastic).

Cutting the “inside” corners

The standard room has a rectangular shape with 90º corners. In fact, such perfect angles are quite rare and are only the dream of the installer. If you are lucky, then the procedure for cutting the corner of the edge of the skirting is as described above, it is very easy to do it with a facing.

When cutting, remember which side the skirting board will be positioned in. You can use putty to create a perfect corner for wooden surfaces or a joint, but a good carpenter will never do this, but will simply file evenly.

Cut out the inner corner

What is needed to form an internal angle that is not equal to 90º

  • It is necessary to make a preliminary marking on the floor with a pencil. On both sides the profiles are attached in turn and their borders are marked. A rhombus is created in the corner in this way. Its diagonal and will be the line of sawing.
  • We put the bar to the resulting figure and put a diagonal mark.
  • Connect the mark and the corner of the plinth. This angle will be the sawing line.
  • The resulting side edge must be painted to match the color of the skirting board.

If the inside corner is cut with a small exaggeration, it will allow you to make the most accurate fit. Sometimes a plug is inserted into the plastic or foam plastic at the final stage of the junction and a nice, neat corner is obtained. In wooden products, the joints are simply neatly fitted, puttying is the destiny of the unskilled.

Cutting out the “outside” corners

If the outer corner is standard and equals 90º, then the stages of installation are similar to the internal one. When carrying out works it is necessary to remember a site of the trimming. But if it is not standard, you will have to sweat.

External corners

Non-standard external corner is done so:

  • We put a profile to a wall and we draw all its internal and external edges with a pencil.
  • Similar manipulations are carried out with other moldings.
  • Similar to the inside corner we get the diamond. Only in this case it is on the outside. The diagonal of the figure obtained is the sawing line.
  • Cut corners with a jigsaw.
  • Finish and fit.

At the final stage, the skirting board should be finally fixed around the perimeter using self-tapping screws or liquid nails.

Unusual room configurations and corners

Some rooms have original, atypical configurations. In such situations it is rather difficult to install the skirting board beautifully. After all, corners are often external and internal at the same time. There are also rounded options. All of the above techniques do not work here.

If there is a round corner, the skirting board is cut into several (usually 4-5) pieces. Using plugs, a neat corner is formed from the parts. The plinth is fixed with liquid nails or self-tapping screws, with or without plugs

A non-standard inner corner

The procedure for cutting corners for a ceiling or floor requires preparing the necessary tools (depending on the material). The work requires attention and diligence.

How To Cut Baseboard Corners That Look Great

Irregular outer corner

All necessary materials for such works can be bought in our online store LesoBirch. We can also order delivery in all areas of Moscow and St. Petersburg.

Trimming the skirting board in the corners without special devices

The question of how to properly cut a corner of 45 degrees on the baseboard can be solved without a special device. To do this, carry out the following steps:

  • They take a sheet of paper and apply the skirting board to it.
  • Draw two parallel mowing lines marking the sides.
  • Then take a normal protractor and measure 45 0.
  • According to the mark made, conduct the line of the future cut.
  • Before trimming the ceiling plinth, it is laid on a sheet of paper, while controlling the alignment of the lines and sides.
  • The marking from the sheet is transferred to the baseboard and a cut is made in the right place.

The disadvantage of this method can be called the need to keep the saw in the weight while cutting.

With what and how to cut

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

Corner corners that are cut properly look nice

When working with skirting boards of foam without special devices cut them with a good office knife. Its blade is thin and smooth enough, the cut is smooth, not crumpled. If you work with polyurethane or polystyrene with a saw, don’t press too hard. you might crush it.

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

How to cut a skirting board at a 45° angle

Corner elements for ceiling plinth can be easily trimmed by hand or with a jigsaw. In the first case, you will need a power tool and a hacksaw, and in the second case, a pencil and a hacksaw/cardboard cutter. The blade of the hacksaw must be well sharpened, so you do not have to think what to cover the chips and roughness on the cut.

Trim the corner with a wire cutter

We take a polyurethane ceiling plinth, designed for the left or right side of the corner. We lean it to the future place of installation so that the opposite end of the piece from the corner into the edge of the already glued molding. In a place where the bottom edge of the ceiling plinth touches the top of the wall corner, put a point with a pencil or glue a piece of insulating tape. Repeat these steps with the second piece.

How to file a ceiling plinth on the inside corner? Everything is very simple, the actions will be exactly the same, only the location of the mark of the top of the corner is changed. Here it is vice versa: for the left piece. the rightmost slot, and for the right. the leftmost slot. Finished ceiling tacks should be combined, and then look at the joints in the light. there should be no gaps. If they are quite small, then straightening is not necessary, you can do with caulking with putty after installation.

baseboard, degrees

How to measure and cut angles for baseboard, crown moulding, etc

How to make a ceiling plinth corners: the location of the workpiece in the jigsaw

Important: sometimes the corners have too large deviations from the standard 45 degrees, and a simple skirting tool for ceiling plinths becomes useless. you can cut the excess. The way out will be the purchase of a rotary tool, but it is not cheap and this purchase “at once” will not be rational. In this case, you can get by with the method of intersecting points.

baseboard, degrees

How to cut the ceiling plinth corners without a jigsaw

If you wonder how to properly file a ceiling plinth without a joiner, the following information will be useful to you. We take the right piece of foam ceiling plinth, put it on the place of installation and mark out a fishing line on the ceiling by its upper edge. It should go beyond the vertexes of the corners of about 5 cm. Do the same with the left segment and put points at the intersection of the lines. Put the ceiling skirting boards one by one in its place and mark the marks you have made on them.

With the upper part of the ceiling moldings we are done, now move on to the lower part. Here everything is simple, the marks we need are the tops of the corners. Mark their location with dots on the lower edges of the left and right ceiling plinth. Next, you have to connect the dots on the moldings. that will be the trim line. This method will help to cope even with the most crooked corners. Adjustment, most likely, will not be required, and if it happens, it will be minimal.

How to cut a ceiling plinth without a special device: in the photo you can see the marks for the intersecting point method

Important: the work described here requires the marking of the surfaces. So first you have to start cutting and fitting the ceiling plinth, and then think about how to glue the wallpaper. Or, if you want to mount the skirting boards over wallpaper, marking and trimming do before finishing, and gluing after it.

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