How to Use a Laser Level in Construction

Written by charlie higgins
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How to Use a Laser Level in Construction
A laser level needs to be calibrated before work begins. (level image by Willee Cole from

A laser level is a small tool that incorporates a traditional level and a laser beam, which is emitted in a straight line. Traditional levels can be useful for small jobs, but if you need to create a long, interrupted guideline, a laser level may be more appropriate. It can be particularly handy for construction tasks such as tiling, bricklaying and concrete slab construction, for which straight, level lines are essential. If you've invested in a laser level, some simple steps can ensure your levels are right on the money.

Skill level:
Moderately Easy


  1. 1

    Calibrate your laser level. To do this, twist the levelling pins attached to the base to raise or lower the level until the bubble in the liquid is centred between the two guidelines.

  2. 2

    Mount your level on a horizontal or vertical surface. If your level comes with alternate horizontal and vertical bases, check that the correct base is attached.

  3. 3

    Turn on the laser. When the laser is on, you should see a straight, level line projected from the laser level and along the desired surface.

  4. 4

    Align tiles and other materials using the line produced by the laser as a guideline to complete your construction task. For instance, if you lay tiles in your kitchen, align the laser level to provide a completely straight guideline across your floor or wall while you work. This will ensure that your tiles are always in perfect alignment.

Tips and warnings

  • You can also attach the laser level to a standard camera tripod in order to achieve a correct height.
  • Never look directly into the laser or point the laser at anybody. Looking directly into the laser can damage eyes.

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