Bathroom Floor Joists

If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.

Bathroom floor joists. Stand each of. Exit the area below the subfloor through the crawl space and obtain a piece of framing lumber as the replacement joist. If your home is more than 20 years old your floor joists are most likely solid wood 2x8s 2x10s or 2x12s.

The notching and boring rules of thumb for solid lumber are shown in fig. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. The sill plate also known as the sill or mud sill is comprised of lengths of.

Plywood 60 grit sandpaper construction adhesive metal bridging. The subfloor is the bottom most layer and it rests on the joists. The subfloor rests directly on the floor joists and is the lowest layer of flooring material.

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. Put the sill plate in place. Required materials for this project 1 1 2 in.

This is commonly caused by moisture issues deteriorating the wood but it can also be caused by improper. Typical floor joists are two by eight or larger. Yellow pine douglas fir.

To strengthen the floor work out roughly where the bath feet will stand and fix some extra noggins between the joists to stiffen the structure by carefully cutting from a minimum 150mm x 50mm. Joist hanger nails 16d nails 2x12 2x4 2x6 3 4 in. Set and fasten the rim joists.