FLOOR FRAMING IS A SYSTEM
All parts of a floor have to work together for it to function properly. Posts should be spaced so the main beam is not over spanned. Joists need to be deep enough to support their loads without bouncing excessively, and the subflooring must be thick enough to span between the joists without sagging. Mid-span bridging helps to minimize joist flexing. vapor retarders protect the finish flooring from moisture rising from below. Finish flooring usually runs perpendicular to the joists for...
