Attic Plywood Size

My attic is located above my garage and currently the former owner had random pieces of plywood placed up there.

Attic plywood size.

In attics built purely for storage purposes you may find 2x6 ceiling joists or in some cases. These openings not only allow mechanical and electrical contractors to. Cut the plywood into manageable strips about 10 inches wide to make the job easier. What size plywood for an attic floor.

Oversizing is an unnecessary expense but you don t want to fall through. If the attic were designed as living space those ceiling joists would become floor joists and be much bigger. Plywood comes in large sheets. The minimum size for an attic s access.

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. I assume 3 4 inch but there are many types brands to choose from. These project panels help eliminate waste cut costs and are easier to transport than full size panels. Oct 16 2019 what size plywood for an attic floor.

The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. Install two by four blocking between joists or wherever needed to support edges of the plywood that do not have support from the bottom. To give yourself enough space to ensure adequate insulation under the flooring construct a riser of 2 x 4 s in the attic over the existing joists. Ensuring adequate insulation under the flooring.

Attic access panels serve as an important safety and convenience feature in the home. 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 depends on the spacing of the ceiling joists. It might seem impossible to haul it up to the attic. While this is not the optimal setup it is acceptable to have ceiling joists covered with plywood or osb to use for light attic storage of dead loads.

If necessary block around them with plywood or corrugated cardboard to prevent the insulation from piling up on the vent. That s a big size and strength difference between the two types of attic joists even if the joist spacing is the same. I wanted to add more plywood to the area and wanted to know if any specific type i should use. Some screwed others not.

Ceiling joists are typically 2 8 lumber floor joists are usually 2 10 or 2x 12 lumber.