Plywood Thickness For Attic Floor

Don t use 7 16 osb as it is intended for.

Plywood thickness for attic floor.

5 8 is cheaper 17 00 a 4x8 sheet vs 21 44 a 4x8 for 3 4 can i get away with the 3 4. In that case you will need to use 3 4 thick plywood. Plywood comes in 4 by 8 foot sheets with thicknesses ranging from 1 4 to 1 1 4 inches. These lightweight easy to manage panels can be installed by even the most inexperienced homeowner in about 15 minutes.

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. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or. 3 4 inch plywood is nice and stiff but it is also heavy so installing a large area of 3 4 plywood may c. Measure the plywood and attic door.

The recommended thickness of the plywood subfloor is governed by the spacing of the joists. Attic storage might be a good idea but other issues such as insulation joist spacing and intended usage should be taken into consideration. A single 4 pack covers approximately 10 sq. The thickness that builders use most often for subfloors is 3 4 inch and when they need extra reinforcement.

As an alternative 3 4 osb can be used. Take the measurements for your subfloor and measure enough plywood so that you can cover the entire frame. You ll need to make sure that the plywood can fit through your attic door. Attic flooring panels are easy to install with their interlocking edges.

However the same can t be said if you are planning on using the space as a living space. More product details close. An attic can be floored with 1 2 cdx plywood if it is being used only for storage. Plywood flooring thickness is important for proper weight distribution.

The thickness of plywood for an attic floor depends on the reason for it and the load bearing ability of the ceiling joists that support it.