Using a Laser Level

Summary: How to use a fixed or rotary Laser Level for accurate work

Don't want to do this job yourself? Let us help you find a tradesman local to you

A laser level is used to project a constant and common level line of light onto a surface on a horizontal or vertical plane. This is most useful in transferring a level from one place to another as is required, for example, when fitting picture rails or dado rails to the wall of a room.

There are many different types of leveling devices but a laser level will consist of a device which incorporates mainly a spirit level or pendulum level with the use of a laser to find a constant level line over distance.

Fixed Laser Level:

A fixed laser level is fixed in a set position to project a level line of light. It is just for projecting a straight line of light on a single plain from which markings can be made for positioning or using for calculations.

Rotary laser level:

A rotary laser line of light is projected with use of a laser and the use of mirrors. A rotating projection unit which spins at speed while projecting a constant line around an enclosed space (colours of laser lights most commonly used are red / green).

To set up a laser level on a tripod you must firstly erect the tripod. Most modern tripods come with a leveling bubble built in and individually adjustable legs. This process will be repeated on the laser leveling device once it is position on the tripod. More expensive models of the laser level will come with a fully automated leveling system. These levels are used when an accurate measurement for setting out, measuring and calculating a required distance are needed. If this much accuracy is required it is advisable to buy or use a device with a built in self leveling action.

The most common use of a Laser Level is to find a set constant height around a room for a vertical measurement (up or down) to be taken from the illuminated laser line for the use of setting or constructing i.e. level floor surface, also ceilings / suspended ceilings. Marks can be made on wall surfaces or other fixed points while the laser is projecting.

Laser levels are relatively inexpensive and can eliminate a great deal of possible error when transferring levels. See our tool store to the right of this page for different types of laser level.


Don't fancy doing this project yourself? We work with Checkatrade to ensure that we recommend only reliable and trustworthy tradesmen.

All project content written and produced by

Project Feedback