A spirit level is used for determining horizontal and vertical levels and can be used on a variety of DIY projects in and around the home.
A spirit level is used to designed to indicate whether a surface is a level on the horizontal or vertical planes, and there are a variety of sizes and designs for every project.
The best spirit level to buy is one that features both a horizontal and vertical vial.
The vials feature two graduation marks that are spaced to allow positioning of the bubble between these two graduations, which then indicate horizontal or vertical level.
Accuracy of the level depends on the quality of the spirit level used. Obviously, a quality spirit level, such as that manufactured by Stabila, will offer a more precise and accurate reading than a cheaper, more inferior model.
To use a spirit level properly the level should be positioned in the center, on a firm horizontal or vertical surface. If the plane to be checked is not even, place a straightedge on top and the spirit level on top of the straightedge.