Floor joists are horizontal wooden members designed to bear the weight of floors and their coverings.
A floor joist is a horizontal support element that carries the weight of a building’s floor. Commonly constructed from wood, steel, or engineered lumber, these joists extend between beams or load-bearing walls to create a sturdy framework that evenly distributes loads and upholds the flooring above. Correct spacing and installation of floor joists are crucial to ensuring the floor’s overall strength, balance, and durability.