Roofing Plywood Dimensions

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood.

Roofing plywood dimensions.

Foot and with a maximum of spacing of 16 inches between rafters. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. It will support roof. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood.

Plywood typically comes in 4 8 ft. You might be tempted to choose a inch thickness although it s unnecessary in most cases. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. The standard width is 4 feet.

We also carry pre cut project panels that are available in different sizes that may vary by store. These project panels help eliminate waste cut costs and are easier to transport than full size panels. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Sheet with varying thickness.

You can get plywood sheets with a length of up to 10 feet. 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. The minimum thickness of plywood used for roofing is 3 8 th of an inch. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet.

Tolerance for utility grade thickness is 1 32 inch and for cabinet grade plywood 1 64 inch. When this is the case experts recommend a 5 8 inch thick sheet. Required dimensions of plywood for roofing. Steeper rather than flatter roofs will have lesser load per sq.

Keep in mind that the load of the roof still plays a role in the plywood thickness. 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.