How to cut the laminate flooring at 45 degrees

Laying laminate flooring on the diagonal: pros and cons, photos, installation tips

The most popular way to install laminate flooring. lengthwise. It is the easiest and most economical. This method is often indicated on the instructions that come with the packaging of coverage. Most of those who have decided to make repairs themselves, try not to deviate from the basic rules of laying. Of course, this is not a bad option, especially if there are no problems with the layout of the room, and the error during installation is a few degrees. But what to do if the room is uneven walls, protrusions? In a difficult situation is better suited to laying laminate on the diagonal.

With the classical method of laying laminate boards are parallel to the walls. along or across the room. On the diagonal, the laminate flooring is laid at an angle of 30 or 45 degrees. The latter option is considered the most optimal.

The basics of laying laminate flooring at an angle

It is common for many homeowners to buy laminate flooring and install it according to the instructions on the package, but there is no elegance and zest in this kind of flooring. No construction company will not present photos of such flooring as an advertisement for their own services, because they do not attract potential customers.

Use such a method is reasonable only when certain conditions of the room require laying boards butt to butt, and not otherwise.

If the room has any flaws in the layout or, on the contrary, a designer’s idea (rounded walls or characteristic overhangs of the ceiling), it will look aesthetically pleasing if the laminate flooring is laid at an angle to the walls.

Traditional flooring installation involves laying the boards parallel to one of the pairs of walls. Diagonal laying involves an angle of 30 to 45 degrees. Angle is chosen depending on what angle is observed at the junction of two walls. “Which laminate flooring layout is best for the room?”.

Key points about installing laminate flooring.

Allow the laminate flooring to lie in the room for two days before laying. This is necessary so that it adapts to the microclimate of the room and equalizes its humidity with the humidity of the room. This rule is especially important during the winter months when it is picked up from unheated storage areas.

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The optimal temperature for laying the floor. is 18-22 degrees and humidity 40-65%.

The laminate flooring is laid on the principle of a floating floor. That is, it is not fastened to the substrate and is not spread by the walls of the room. Compensation gaps must be left between the walls of the room and its edges, approximately 8-12 mm. These gaps are necessary to compensate for the thermal expansion of the laminate with changes in temperature and humidity in the room. These gaps can easily be bridged with small scraps from the laminate. Its thickness is just right for this.

It is better to lay the panels so that the joints are perpendicular to the window in the room. In this position the joints will not be illuminated by daylight.

Before you start the installation you need to calculate the width of the last row of laminate. It must not be less than 50 mm. If it is less, the first row has to be trimmed accordingly.

Width of the last row of panels.

If you install a laminate floor that is 7-10mm thick in a room that is more than 8m long and 6m wide it is advisable to leave extra expansion joints 2 to 3cm wide. If you are laying a laminate floor with a thickness of 10mm you can lay the floor without expansion joints on a maximum 10x12m surface.

Expansion joints in a room with a large surface area.

laminate, flooring, degrees

Expansion joints are closed with special strips. The panels must not be screwed or glued in place. These planks are fastened to the subfloor.

Decorative strips for closing expansion joints.

Laying methods for laminate flooring.

If the laminate flooring is chamfered on its edges then it is better to lay it following the pattern. This can be offset by half or 1/3.

  • laying using the cut off piece. In this case the leftover cut-off board from the first row is laid at the beginning of the second row, and then the whole pieces are laid. If the leftover length is less than 30cm then the row has to be rearranged so that the last panel in the row has to be at least 30cm long. To do this, you will need to trim the first panel by the required number of centimeters and then you will need to make sure that the remaining length is not less than 30cm.
  • Laying diagonally at a 45 degree angle to the wall.
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Laying methods.

Features of diagonal laying of laminate flooring

Laminate is loved by modern homeowners and craftsmen for its versatility. The material is easy to install and easy to maintain. It is not afraid of the slightest scratch, like varnish on the parquet, does not fade like linoleum, does not squeak like a boardwalk. On sale you can find laminate with a top layer, surprisingly accurately imitating wood or stone. In short, it is a good ratio of quality to the cost of acquisition.

laminate, flooring, degrees

Are there any disadvantages to installing laminate flooring diagonally? Yes, defects can be removed in this case, too. First of all it will increase the consumption of building material and complication of calculations before laying. The work will be more laborious, requiring attention and diligence. The amount of construction waste will increase if the room is small.

Attention ! Reject the diagonal laying of the laminate and in the case where the room is often high humidity, such as in the dining room. Excess moisture can make the laminate flooring swell, the surface of the floor in this case loses its perfect smoothness, and in diagonal laying the irregularities will be even more noticeable.


Before you lay a laminate floor you should pre-plan the layout, following some important rules.

  • The flooring should not have cross joints. Laying should resemble masonry, where the joint rests in the middle of the previous row of panels. This option is the most reliable, but requires a lot of trimming, so most craftsmen shift the seam on the length of the segment that remained after laying the last strip of the previous row, if its length is not less than 30 cm.
  • The direction of the panel can be longitudinal, transverse or diagonal. The latter method is the most difficult to implement and requires greater material consumption.
  • The minimum thickness of the trim on the wall along the grain line is 5 cm.
  • It is recommended to draw by hand a simple plan in scale and sketch the future layout.
  • The simplest and most economical scheme is that the cuttings from the last panel of the laid row is laid as the starting element of the next row. The docking of the panels is chaotic.
  • Joints are better placed along the flow of light.

Advice! If the width is a small balance, it can be overlapped, stepping back from the wall 1-1.5 cm, which will be covered with a baseboard.

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Floors and corners: preparing to lay laminate flooring

The floors were initially perfectly smoothed with a mixture such as screed. Plastered the corners beforehand. My prefab house was built by soldiers, so I do not need to explain how bad everything was. Unfortunately, I didn’t take any pictures “before the renovation”.

After everything was completely dry, I glued wallpaper, made the ceiling In general, the flooring was mounted last. All dust was removed from the surface. It’s a good thing my wife didn’t see it. I’m sure she would challenge my mental incompetence if she saw me use a Rainbow Cleaner.

Floors prepared for laying. not a speck of dust, not a grain of dirt

How to calculate the right amount of material

Laying laminate flooring at an angle of 45 degrees is technically more complicated than the classical method of installation and requires more materials to implement the conceived. For this reason, counting the required amount of laminate, add 15-20% to the resulting value. Professionals with extensive experience in installing laminate flooring can reduce extra costs to a minimum. up to 5%. If you decide to do the repair yourself and have little experience in such works, it is better to reinsure and take more material.

So how to lay laminate on a diagonal? Before you begin, get paper, a simple pencil and a ruler. Draw a diagram of the room to scale and sketch a board layout on the plan. Take into account the position of the windows: the boards should be laid so that the sunlight falls on them parallel. Thanks to this, the seams between the blades are almost invisible. You have a detailed diagram like this

laminate, flooring, degrees

In today’s video you will see how to install laminate flooring diagonally in a master class. You will learn the following things from this material.

I think you have something wrong with the formula ?! (ACxCD) (1.42 AC x width of one board). As you write: “When installing laminate on the diagonal, it is desirable to take the material with a margin. 15-20%. “AC. 4.0 m (room width); CD.5.0 m (length of the room) 1,42. square root of the number 2 The area of the room. 20 sq.m. м. 15% ( 3 sq. м. ) = 23 sqm.м. According to the formula: 20 ( 1.42AC x 0.2 = ) =. Where you have ERROR ?

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