In ordinary wood‑frame construction, the wood floors are typically supported by which structural element?

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Multiple Choice

In ordinary wood‑frame construction, the wood floors are typically supported by which structural element?

Explanation:
Floor joists are the horizontal members that carry a wood-floor system. They span between bearing walls or beams and support the subfloor and finished floor, taking the load of the occupants and furnishings and transferring it down to the supports. In typical wood-frame construction, these joists are spaced evenly (often 12–24 inches on center) and run parallel to each other across the space. Beams and posts exist to support the ends of the joists, while slabs are used with concrete construction, not as the direct floor support in a wood-frame building.

Floor joists are the horizontal members that carry a wood-floor system. They span between bearing walls or beams and support the subfloor and finished floor, taking the load of the occupants and furnishings and transferring it down to the supports. In typical wood-frame construction, these joists are spaced evenly (often 12–24 inches on center) and run parallel to each other across the space. Beams and posts exist to support the ends of the joists, while slabs are used with concrete construction, not as the direct floor support in a wood-frame building.

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