Roof Thickness Plywood

This kind of plywood can be used on roofs with minimal load.

Roof thickness plywood.

Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. Plywood typically comes in 4 8 ft.

Foot and with a maximum of spacing of 16 inches between rafters. Steeper rather than flatter roofs will have lesser load per sq. You might be tempted to choose a inch thickness although it s unnecessary in most cases. What is the actual thickness of a sheet of plywood.

The standard width is 4 feet. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot. 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 made with three or more layers of thin wood glued together with the grain. The minimum thickness of plywood used for roofing is 3 8 th of an inch. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch. Required dimensions of plywood for roofing.

Many factors affect thickness. We also carry pre cut project panels that are available in different sizes that may vary by store. Sheet with varying thickness. The thickness of plywood used for roof decking depends on the roof slope the spacing of.

A 3 4 sheet is actually 23 32 thick. However you may need to consider bolstering the plywood thickness for a roof that has a higher load. You can get plywood sheets with a length of up to 10 feet. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal.

With edge support and the same snow load 3 8 inch osb can be used.