How to Use Laser Level

How to Use Laser Level

How to use laser level

Depending on the model and type of device, the control may differ, but in general it comes down to the following principle. First you need to remove the mechanical suspension suspension, which is used to protect against damage during transportation. Often this switch is combined with the on function, and when the lock is released, the device starts automatically.

When mounted on a relatively flat surface, the pendulum calibrates itself. If the slope exceeds the auto-alignment range, a beep will sound. In this case, you will have to adjust the position of the device using rotating legs, focusing on the readings of the bubble level built into the housing.

One of the buttons turns on the projection of the horizontal line, the second – vertical. Repeated pressing changes the number of lines and also completely turns them off to save battery power or the built-in battery.

There is a special mode for projecting oblique lines, which is activated by a separate button. In it, the calibration of the pendulum is blocked, and the level stops beeping when tilted.

For vertical positioning, the laser level is attached to a tripod, rod or simply mounted on any support at the desired height. To move in the horizontal plane, the device rotates around its axis manually or using fine adjustment screws.

Installation of lighthouses on the walls

When aligning the walls with plaster, you can not do without installing beacons. Using the laser level, this procedure is very simple.

  • Turn on the device in the projection mode of vertical lines. Using the level with a pencil, make marks on the wall for places under the beacons with the desired step – usually 20 cm shorter than the length of the rule with which you will pull the mixture.
  • Switch to vertical plane mode (closed loop on the floor, walls and ceiling) and move the laser to the leveling surface.
  • Attach the level to the wall and mark the thickness of the plaster layer on it, taking into account the height of the lighthouse.
  • Fix the beacons one by one, pushing them into the mixture with the rule until the marks coincide.

Use laser

Installation of beacons on the floor

A truly even screed can only be poured over the lighthouses, but the easiest and fastest way is to find the highest point and set them precisely at the laser level.

  • Place the level at an arbitrary height (for example, 1 m) for easy reference. Turn on horizontal line projection.
  • Measure the distance from the subfloor to the beam in different parts of the room with a tape measure to determine the highest point.
  • Consider the thickness of the backfill, insulation, and finish coat and calculate how far from the beam the top of the screed will be.
  • Install and secure the beacons, aligning them so that they are exactly at the same height from the laser line.

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Partition marking

Without a laser level, marking the frame of interior partitions is not such an easy task: it requires a whole pile of tools and experience in handling it. With the plane builder, this work becomes much easier and more enjoyable.

Turn on the projection mode of the vertical plane and position the level so that the line is in the place where the partition should be. Mark with pencil or chop line on the floor, walls and ceiling. Fix on them guides.

To form angles, switch the device to the projection mode of two perpendicular vertical planes and align one of the rays with the previously marked line. Repeat the procedure to mark other adjoining walls.

Marking guides of a false ceiling

Guides for suspended or suspended ceilings are even easier to mark than for partitions. The only thing to tinker with is the level bracket.

With markup, everything is clear: just turn on the projection of the horizontal plane. The difficulty is to fix the device at the desired height. If you have a spacer bar at hand, then this is not a problem. If it is not, build a small area from the profile or a piece of plywood, attach a level to it and install the structure at the required height on the wall or ceiling.

Laying floor tiles

The result of all the work depends on the correct laying of the first row of tiles , so it is important to approach this very responsibly. The benefit with the laser level is easy.

Switch the device to the projection mode of two perpendicular planes and lay down the first tile, aligning it with the cross-hairs of the rays. Continue laying the rest of the tiles in the row, exposing them along the line of the beam. To control subsequent rows, you can use the same method.

Laying wall tiles

With tiled walls, things are exactly the same. At the same time, laying the first row of tiles is even easier, since one horizontal line is enough.

Turn on the projection of the horizontal beam and set the device at the required height. Fix the profile as a guide on the mark, or immediately lay the tile, focusing on the line projected by the laser.


For smooth wallpapering you need a clear vertical line on the wall. It is easy to mark on a plumb line, and even easier to do it with the laser level.

Switch the device to the vertical line mode and draw a mark on the wall with a pencil in the rule. You can not do this and glue the first strip of wallpaper, immediately aligning one of its edges with a laser beam.


It is much more convenient to cut the strobes for laying cables into the wall, not by eye, but along lines clearly marked with a laser: this is faster and less risk in the future to damage the wire that has gone to the side.

For marking, turn on the plane builder in the projection mode of horizontal and vertical lines, and then move the cross-hairs to the desired places.

Sewer pipe laying

For proper operation of the sewage system, the pipes must be located at a strictly defined angle – deviation neither up nor down is allowed. Setting the differential manually is tedious and inconvenient, but the laser is a completely different matter.

Sewer pipe-laying

Turn on the device in the projection mode of the horizontal line and block the automatic calibration of the pendulum. Tilt the laser level at a given angle and draw a line or immediately set the tube along the beam.

Hanging pictures, shelves

Hanging exactly one frame is not so difficult, but a composition of several is not an easy task. With the shelves the same story. However, having a plane builder is not a problem.

Switch the device to the horizontal line display mode and fix the paintings or shelves on the wall, aligning them with the beam. If necessary, turn on the projection of the vertical line to align the second and subsequent rows.


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