Laser level construction is used to determine the accurate level of reference when doing jobs where layout is necessary. Most of these jobs deal with heights such as installing chair railings, ceiling tiles and receptacles for power for home or building construction or even when installing sewer pipes or making a site grading plan for a new building. This may also be used for smaller tasks like hanging pictures or decorations on the wall.

First, determine what kind of work do you intend to do? Is it outdoors, indoors or both?

Indoor applications of laser levels include aligning of walls, shelves and cabinets, levelling floors, checking door heights, installing drop ceilings, chair rails and checking door or window heights.

If it is for the outdoors, you can always perform any type of basic survey using laser level construction as well as easily check and level posts on fences, decks and porches.  Laser levels can also be used for site layout, masonry alignment and in checking land elevations. Some lasers are capable of grading proper irrigation and drainage and in contour farming.

It is important to take note that selecting a construction laser should not be limited to application.  Depending on the layout distance of a construction, you can choose from three different types of lasers that are less time consuming. The Plumb or Dot Lasers work like a laser plumb bob or a reference point on the wall or work surface. The Line Level Lasers or Laser Line Generators, however, produces a level line in one direction and is commonly used indoors because it is small and hand-held.  Rotary level lasers emit level line around the workspace of about 360 degrees. This is usually larger and used with surveying tripods. Rotary lasers can be used outdoors with the help of a laser detector or commonly known as laser receiver. This allows the human eye to see the laser even in daylight even at significant distances.

There are several types of units for laser level construction which include manual-levelling, horizontal lasers, self-levelling and automatic; and dual-beam lasers.

With manual-levelling lasers, operators manually adjust the unit by turning the thumb screws and levelling the equipment by looking at the bubble vials. For self-levelling and automatic-levelling lasers, the unit maintains its level within a specific range. The operator would tune the laser to somewhat close to being level and then the laser will do the fine levelling. However, some units may shut themselves down when they get out of level even by 3 or 5 percent.