Flooring Plywood Thickness

X 96 in plywood is a powerful structural product plywood is a powerful structural product used where strength and stiffness are required for subfloors wall or roof sheathing and do it yourself projects.

Flooring plywood thickness.

Plywood is often sold in 1 4 1 2 or 3 4 nominal thicknesses but the actual thickness is often 1 32 thinner. Plywood is the most common type of subflooring. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8. When used in flooring plywood functions as the subfloor that supports hardwoods tile and carpet floors.

It is rot resistant with knots replaced with football shaped plugs to give it a smooth moisture resistant surface. The recommended shed floor plywood thickness is 3 4 inch pressure treated exterior grade cdx plywood. This type of plywood won t sag when used on a 12 inches joist structure. Plywood is made of layers of thin sheets of veneer in alternating wood grain directions which increases the.

The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor. Plywood makes up most of the walls and floors in attics and are sometimes found in laundry rooms closets and other unfinished areas in the home. The subfloor is the decking installed on top of flooring joists. The thickness of plywood panels in a subfloor is regulated by the.

The thickness of your plywood subfloor depends on the joist spans. Fir sheathing plywood actual. The minimum thickness allowed for ceramic tile installations is two sheets of 5 8 inch thick plywood. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness.

A 3 4 sheet is actually 23 32 thick. Plywood comes in a variety of thicknesses beginning at 1 8 inch and increasing to 1 inch. Usually manufactured in 4 by 8 foot sheets plywood panels and osb are acceptable subfloors for hardwood flooring as long as they are the proper thickness. The national wood flooring association recommends a minimum plywood panel thickness of 7 8 inch for joist spans of 19 2 to 24 inches and a minimum plywood panel thickness of 5 8 inch for joist spans of 16 inches or less.

What is the actual thickness of a sheet of plywood. Keep in mind that for mechanically fastened floors osb doesn t hold fasteners as well as plywood so you need to use a thicker material to get the same holding power. The plywood must be exterior grade for all wet areas and it has to be installed in such a way that the joints between each layer do not line up using what is known as a stagger pattern to keep the pieces from ever lining up.