Roofing Plywood Dimensions

You can get plywood sheets with a length of up to 10 feet.

Roofing plywood dimensions.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. 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. Foot and with a maximum of spacing of 16 inches between rafters. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

Plywood typically comes in 4 8 ft. We also carry pre cut project panels that are available in different sizes that may vary by store. 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.

Sheet with varying thickness. These project panels help eliminate waste cut costs and are easier to transport than full size panels. Keep in mind that the load of the roof still plays a role in the plywood thickness. Its size tolerances especially for thickness are smaller that those for the utility grade plywood used in the building trades for roof and wall sheathing subfloors and general use purposes.

You might be tempted to choose a inch thickness although it s unnecessary in most cases. Required dimensions of plywood for roofing. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. Steeper rather than flatter roofs will have lesser load per sq.

This kind of plywood can be used on roofs with minimal load. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. It will support roof.

When this is the case experts recommend a 5 8 inch thick sheet. Tolerance for utility grade thickness is 1 32 inch and for cabinet grade plywood 1 64 inch.