Sub Floor Construction Details

In basements and in homes with slab on grade foundations the subfloor may simply be a concrete slab.

Sub floor construction details.

It may be made of boards laid either at right angles or diagonally across joists. During this video we will identify key installation practices th. Subflooring provides a base for finish flooring and also serves as a platform during construction. Joists are typically shorter and lay across the beams to give them horizontal support.

The subfloor is the bottom most layer and it rests on the joists. The subfloor is the foundation beneath finish flooring materials. Good subfloor construction depends on material selection and attention to critical details. Although cold formed steel framing for floor systems also is permitted by the irc it is not covered here.

69 chapter 4 floor construction woodframe floor systems and concrete slab on grade floors are discussed in this chapter. If you have a concrete slab floor the slab may be considered the subfloor. Beams are thicker and longer and are laid vertically. Typically made of plywood or osb and ranging in thickness from 19 32 to 1 1 8 thick the subfloor is truly structural second only to joists in this respect.

Beam and joist arrangements can form a supporting frame for a floor.