Laser level is designed to determine the horizontal and vertical lines and planes in the construction of building structures and the implementation of finishing. With this device, the geometry of the element can be observed with great accuracy. This is important for the strength and durability of the constructed object. But it is not always possible to purchase an industrial device. However, a skilled master is able to create a laser level with his own hands. Consider how to do it, and whether it is possible to repair a broken level at home.


  • 1 What is a laser level
  • 2 What is the device for?
    • 2.1 Leveling floor, wall and ceiling surfaces
    • 2.2 Laying ceramic tiles
    • 2.3 Wallpapering
    • 2.4 Assembly of furniture
    • 2.5 Redevelopment
  • 3 How to do it yourself
    • 3.1 Necessary tools and materials
    • 3.2 Walkthrough
    • 3.3 Video: do-it-yourself laser level
  • 4 Setup and Calibration
  • 5 How to repair

What is a laser level

The body of this tool has LEDs that are sources of laser radiation. With the help of a bright luminous line you can mark up any object both in the horizontal and in the vertical plane.

And with this work one person can easily cope.

Lasers are of three types:

  • prism;
  • rotary;
  • point.

Prism instruments create a linear beam projection. When a luminous line collides with an obstacle, the device captures the data and shows the desired markup. Such levels are equipped with auto leveling system, necessary to compensate for errors up to 6 °. The angle of projection of the laser beam does not exceed 120 °.

The prism laser level has a short range of the beam - on average from 10 to 50 m.

Prism laser level

The prism laser level allows you to get horizontal and vertical planes intersecting at a right angle

Rotary machines are classified as professional tools. They are equipped with point laser devices, but not fixed, but rotating with adjustable frequency. Designed for marking on very large areas, for example, on a construction site. The rotary level can project a plane through 360 °.

Rotational levels have a greater range of the laser beam - from 200 to 500 m.

Rotational Laser Level

By installing a rotational level in the middle of the room, you can mark all the necessary points around the perimeter

The point level is the easiest to set up: the laser device is clearly fixed, and behind it is only a focusing lens. It directs the light flux in one point. Adjust the device manually. Such levels equip one or several lasers. In the latter case, they are directed in different directions, which makes it possible to transfer the markings from several planes - walls, floor and ceiling of a large area. The angle of projection of the laser beam does not exceed 160 °.

The working range of the point level is from 15 to 50 m, depending on the model.

Spot Laser Level

Compact and versatile point laser level designed for any leveling work over short distances.

What is the device for?

The purpose of laser devices is diverse. They are required for the following types of work:

  • the breakdown of the territory and the installation of equipment with the control of the position horizontally and vertically;
  • markup and direction determination;
  • surface leveling of the floor, walls and ceiling;
  • arrangement of concrete screed and assembly of floors with an adjustable level;
  • carrying communication lines;
  • installation of bulkheads and hanging accessories;
  • installation of stairs.

In the latter case, the device uses the ability of the marking of inclined planes. For example, it is necessary to mount the railing on the staircase. Fixing on it a level with a laser, it is easier to mount the railing parallel to the march.

To understand how to use the level, it is possible on the example of common construction and repair work.

Leveling floor, wall and ceiling surfaces

When conducting such work, additional benchmarks will be needed. Then direct the laser beam along the plane. The labels rearrange the laser to more accurately determine the flatness of the surfaces.

Leveling the floor with a level

When using a laser level and getting the same data, the floor is absolutely flat

Laying ceramic tiles

For such work it is better to take the device with the function of cross-projection of rays in the horizontal and vertical. Thanks to them, even a novice master can flawlessly lay tile.

Laying tiles with level

The intersection of the lines of the level put on the center of the proposed inter-tile seams


By itself, the process of sticking is quite easy, but using the level allows you to make the process of work even easier. Focusing on the laser beam projected on the wall, it is much more convenient to align wallpaper panels.

Wallpapering with a laser level

Horizontal projection will contribute to the proper gluing of fillets and borders

Assembly of furniture

Even in the presence of even walls in the house, which is quite an infrequent phenomenon, the interior can be ruined by crooked wall cabinets, shelves and other mounted accessories. And with the help of a laser that creates a circular level line, you will immediately see how to install hanging furniture without distortions.

Furniture assembly by level

The horizontal beam of a laser level will help at installation of eaves for curtains


The plane builder allows you to simplify this process. To determine the exact placement of the walls of plasterboard and partition elements will be required set the laser so that its projection on the floor, walls and ceiling is a label for the intended partitions.

Redevelopment using level

When installing the metal frame under the plasterboard wall, the laser level is installed on the floor, the beam is directed upwards so that it marks the installation line of the profile

A simple device can be used outdoors only in cloudy weather or at dusk.

If a lot of external work is expected (digging trenches, carrying communication lines, foundation), it is better to acquire a professional plane builder with a beam that is noticeable when sunshine.

How to do it yourself

The idea of ​​a laser level with your own hands is quite simple - the pointer is mounted on a mobile platform. The use of this mechanism allows you to markup, turning it at the same level of 360 °.

Necessary tools and materials

In addition to the laser pointer, you will need the following materials:

  • glue;
  • metal files;
  • jigsaw;
  • a piece of corrugated plastic (for example, a bicycle headlight).


You can make a laser level with your own hands from a pointer in just an hour:

  1. Improve the pointer. Saw off its tip, leaving the threaded part.
    Preparation for work

    Laser pointer emits a point

  2. From a piece of plastic, we cut out a circle with a diameter, like the tip of a laser pointer.
    Measurements of details

    If you pass the pointer beam through the corrugated plastic, you get the line

  3. Glue the plastic circle on the tip of the pointer.
    Finished level design

    The place of gluing parts can be additionally coated with cold welding and grind.

The imperfection of this level option is its one-sided mobility - only in the horizontal.

Laser level work

The laser level must be fixed perpendicular to the plane.

If you need to mark up not only horizontally, but also vertically, you can try to mount a more advanced device:

  1. A hole is drilled in the wooden post so that a long groove is obtained (or a finished plastic tube is taken). A pin, a bolt or a screw is inserted and fixed into the hole in the center. The hardware is placed down with the bonding with an adhesive.
  2. A wide articulated fork is installed on the pin. In order to prevent its loosening and scrolling, a rubber gasket is installed between it and the stand. In the plug is placed the base of plastic or wood. Through it passes screw fasteners, fixing the workpiece on both sides of the fork.
  3. On the basis of fixed construction level and an improved pointer.

This type of assembly allows the device to change the location of the laser in the vertical direction. If you show ingenuity and pick up the right plug, really assemble the device with a 270 ° rotation.

It should be borne in mind that the larger the fork size, the wider the blank required to create a stable position.

This device is collapsible. To stabilize the base, you need to find a fork with a hinged part of the desired cross section.

If there is no suitable plug, you can make it yourself from a durable metal-plastic ring of the desired cross section.

It will be necessary to drill three holes: two from the sides, opposite each other, and the third is exactly in the center between the two future “teeth” of the plug. Then the ring is cut so that a semicircle with three holes is formed.

A homemade laser can be modified: screw an ordinary nut or “lamb” onto the fastening screw, allowing you to quickly loosen and fix the base, and also change the direction of the laser up or way down.

Video: do-it-yourself laser level

Setup and Calibration

After assembling a homemade device, you need to set up a laser level yourself. It is necessary to check it - calibrate for measurement accuracy. To conduct the test, you will need an additional bubble level. Calibration is performed as follows:

  1. The device is placed in the center of the room and marks are made on opposite walls at the intersection of the planes.
  2. The level is transferred to one of the walls at a distance of about half a meter, another mark is made above or below the first.
  3. The device turns on the opposite wall, put a mark.
  4. The distance between marks on both walls is measured and the error is calculated.

For example, the difference between the marks on the first wall is 4 mm, and on the second - 3 mm. As a result, the error is 1 mm. If it is larger, the device requires adjustment.

DIY laser level

The measuring device, assembled independently, can be placed on a tripod or an adjustable pedestal, which will give the product convenience and functionality

To calibrate the vertical, mark two points in the vertical plane and check the marks on the bubble level.

If no deviations are noticed, the plane builder is ready for operation. If there is a discrepancy in the readings, the homemade laser device is adjusted by changing the location of the platform or the articulated fork.

How to repair

Due to the failure of the laser mechanism, it may show an incorrect level or not work at all.

Self-made fixture needs repair:

  • if the diode breaks down;
  • when sticking or failure buttons and switches;
  • in case of malfunction of the radiator, when the laser does not glow or the beam is very dim.

Most often, repair of laser levels is required after the fall of the device. In this case, the settings are lost, which leads to the device issuing incorrect indicators.

If you need to repair a homemade laser, you must disassemble the device and reassemble it. If the problem is in the pointer, it is easier to replace it with a new one.

In order to avoid repairing a homemade laser level, it is important to be careful when working with it, especially on the street.

For building flat planes on large-scale construction sites, industrial levels with a large working range have been created. For minor repairs, you can do the laser level yourself.