Board For Attic Floor

What size plywood for an attic floor.

Board for attic floor.

Attic dek 4 5 out of 5 stars 63 ratings. If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists. Also if the attic insulation is thicker than your ceiling joists you can raise the height of the joists to above the insulation by attaching 2 3 s to their top edge before you attach the attic floor boards. You ll have to construct a wooden frame or sub floor with boards 16 inches apart to provide extra support for the floor.

Use the tongue and groove feature to lock multiple boards together and improve the organization of your storage space. Plan to pull up the flooring and layer new. Sistering is the process of adding a new joist next to each existing joist. If you ever need to cover them with finished flooring you can always nail down another subflooring before installing tile or hardwood.

Enjoy a clean look and increase the usable square footage of your attic by multiples of 8 sq. But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. Place a 2 inch by 3 inch board directly on top of the joist nearest to the edge of the attic with its. The decision regarding the thickness of plywood to use for the subfloor in the attic has a lot to do with how you intend to use the attic and it also.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Strengthening attic joists for live loads by sistering. You can install inch plywood or oriented strand board osb in 4 foot by 8 foot panels over existing 16 inch oc joists. Modifying an attic floor s joist system is a job for the pros.

Osb attic decking has a convenient tongue and groove design for easy installation. You don t want lots of different floor heights or walking in the attic will be difficult. Use old boards that are close to the same thickness in a given section of the attic however. Stop using your attic for storage.

Start with the attic floor. To floor an attic you ll need to install a sub floor for support before laying your plywood floor.