Recommended Screws 3 4 Plywood Flooring

The recommended thickness of the plywood subfloor is governed by the spacing of the joists.

Recommended screws 3 4 plywood flooring.

A thicker subfloor takes a 3 inch screw. Keep some 2 1 2 inch deck screws for screwing into end grain plus some stronger 3 inch screws for attaching into end grained boards or when a little extra added power is needed. The proper steel screw sizes for securing 3 4 inch plywood to the floor joists are 8 10 and 12 screws. The 3 4 inch thick subfloor takes a 2 inch screw.

The number refers to the thickness of the screw. Hey there i m getting read to screw and glue some subfloor in. A wider gap between clusters of nails may indicate a floor 1 5 inches thick which would require subfloor screws that are 2 to 3 inches long. Framing flooring and sub flooring screw pattern and size for 3 4 plywood subfloor.

If it were me and i was going to put additional underlayment down on top of the new 3 4 ply i would use at least 2 1 2 screws and do my best to find the floor joists below. If you are using the new ply directly as underlayment i would use 1 1 2 screws to attach to decking. Floors with nailheads 16 19 inches apart are likely about 3 4 inch thick which suggests the need for screws at least 1 3 4 inches and possibly up to 2 inches long. Conventional wisdom has always been that screws with fine threads are best for hardwoods oak cherry maple birch etc.

Use 1 1 4 inch screws for basic tasks where strength is less of an issue or when attaching two 3 4 inch thick boards across the grain. Typically the 3 inch variety is used to secure plywood subfloors. Once the point has pulled a wood screw down into the material it s up to the threads to continue driving it the rest of the way in. Three fourth inch sheets are the standard in plywood subfloors.

Each is available in lengths from 1 1 4 to 3 inches. Once reserved for subfloors and sheathing construction grade plywood is now making a splash as affordable residential finish flooring. There are two basic ways to go. While coarse threaded screws drive and hold better in softwoods plywood and.

I bought subfloor glue and will be putting. The floor joists beneath a plywood subfloor can be a range of heights but 6 inches is a standard. Some experts suggest that 15 32 inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less but slightly thicker 3 4 inch plywood should be used for joists spaced further apart.