How Thick Is A Standard Sheet Of Plywood

Thickness of plywood ranges from 1 8 inch all the way to 1 inches.

How thick is a standard sheet of plywood.

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 a powerful structural product used where plywood is a powerful structural product used where strength and stiffness are required for subfloors wall or roof sheathing and do it yourself projects. The standard width is 4 feet. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal.

These often aren t the actual thicknesses however because sanding during manufacturing removes up to 1 32 inch of material. Standard sheets are 1 2 inch thick while non standard thicknesses range from 1 8 inch to 3 4 inches. Engineers have rounded off weight calculations for plywood to square foot calculations and have decided that for engineering purposes a generic square foot of 3 4 inch thick hardwood plywood weighs 2 3 pounds. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch to 3 4 inches.

In addition to these standard sizes home improvement stores like home depot carry pre cut panels in various other sizes including 2 by 2 2 by 4 and 4 by 4 feet. Most of plywood sheets available in different thicknesses. Softwood plywood typically used for rough framing comes in 4 x 8 feet 1220 x 2438 millimeters sheets. The nominal thicknesses of plywood range from 1 8 inch or 3 2 mm to 1 1 4 inches which is equivalent to 31 75 mm.

Plywood is made of layers of thin sheets of veneer in alternating wood grain directions which increases the strength and stiffness of the final panels while providing superior dimensional. A 4 by 8 sheet of plywood equals 32 square feet so 32 times 2 3 is just over 70 pounds per sheet. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Most common thickness for rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

What is the actual thickness of a sheet of plywood. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. Thus a plywood sheet with a nominal thickness of 3 8 inch is actually 11 32 inch thick. You might be tempted to choose a inch thickness although it s unnecessary in most cases.

Some stores even sell oversized sheets up to 6 feet wide. You can get plywood sheets with a length of up to 10 feet. Chart represents most common plywood sheet sizes in inches imperial system and millimeters metric dimensions. Sanding of the wood which takes place during manufacturing can remove up to 1 32 inch of material from the plywood sheet.

Softwood plywood is commonly found in sheets 4 feet wide 8 feet long and 3 4 inch thick.