floor joist
Horizontal structural timber
A floor joist is a horizontal beam that supports a floor, running parallel to other joists and spanning the distance between walls or foundation supports.
Joists form the structural framework beneath floorboards or subflooring: The carpenter sistered a new board to the damaged floor joist.
In construction, spacing and sizing of floor joists determine how much weight a floor can bear.
- beamStructural support member
- subfloorBase beneath finished flooring
- lumberSawn wood for building
- spanDistance between endpoints
- supportTo uphold or sustain
load bearing wall · crawlspace · plywood · header · girder · framing · carpenter · nail · level · sagging · wood rot · creaking · basement · foundation · building code · structural · structural integrity · crawl space
- constructionconstruction site, building site, hammer, building, beam
- beamsI-beam, H-beam, T-beam, steel beam, wood beam
- foundationsfoundation, foundations, base, footing, footings
vertical position in structure
floor joistceiling joist
Structural ceiling support beam
ceiling beam · roof beam · rafter · roof truss · purlin