Glossary of Defined Terms

Joist

Horizontal members in a frame structure that support the floor decking and ceiling covering and transmit the weight of the floor or ceiling by distributing it evenly to wall plates or sills. In light frames joists are made to serve as girders to bind opposite sides of the structure together and carry the weight of the internal elements of the structure, that is, keep the floor or ceiling from sagging from the walls toward the center of an enclosed space.

January, 2003