Floor joists are the major component of a floor of a structure. They are responsible for holding up the weight of a building, carrying load across a room and creating structural support so the floor is secure and also to absorb any impact on the floor itself. The joists are installed early on during the construction process. Most homeowners never see them unless they are involved in a construction or remodeling project in the home.
The floor joist makes up a portion of the subfloor, which is a structure that goes beneath the flooring that people walk on. Subfloors provide support to the floor and also make a structure more stable so it can withstand years of use. Joists are typically placed perpendicular to beams and connect to supportive framework of this structure in order to reinforce it.
Wood is a common material used on these joists. Other options include engineered wood and fabricated metal products. Ultimately, a contractor will use materials that meet the building’s code which will reduce any need for maintenance later on.