Which term describes floor joists that extend beyond the foundation?

Which term describes floor joists that extend beyond the foundation?

• A. Cantilevered
• B. Overhanging
• C. Pinned
• D. Unsupported

Answer: (A)

Cantilevered describes floor joists that extend beyond the foundation. A cantilever is a beam fixed at one end that projects past its support. When floor joists extend past the foundation wall to create an overhang, that portion is cantilevered—the inner end is anchored to the foundation framing while the outer portion projects beyond, supported by that fixed connection. This term is the best fit because it precisely captures the structural condition of a projecting member with a fixed support at the inner end. The idea of something merely overhanging is similar, but framing terminology uses cantilevered to describe the engineered setup. Pinned refers to a type of joint that allows rotation and doesn’t describe the extension, and unsupported would imply no support at all, which isn’t the case here. In practice, cantilever lengths are sized within code limits (often up to about a quarter of the joist span) to manage the forces involved.

Cantilevered describes floor joists that extend beyond the foundation. A cantilever is a beam fixed at one end that projects past its support. When floor joists extend past the foundation wall to create an overhang, that portion is cantilevered—the inner end is anchored to the foundation framing while the outer portion projects beyond, supported by that fixed connection.

This term is the best fit because it precisely captures the structural condition of a projecting member with a fixed support at the inner end. The idea of something merely overhanging is similar, but framing terminology uses cantilevered to describe the engineered setup. Pinned refers to a type of joint that allows rotation and doesn’t describe the extension, and unsupported would imply no support at all, which isn’t the case here. In practice, cantilever lengths are sized within code limits (often up to about a quarter of the joist span) to manage the forces involved.