Roofing Plywood Dimensions

Foot and with a maximum of spacing of 16 inches between rafters.

Roofing plywood dimensions.

The standard width is 4 feet. Required dimensions of plywood for roofing. This kind of plywood can be used on roofs with minimal load. These project panels help eliminate waste cut costs and are easier to transport than full size panels.

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. We also carry pre cut project panels that are available in different sizes that may vary by store. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. You can get plywood sheets with a length of up to 10 feet. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. You might be tempted to choose a inch thickness although it s unnecessary in most cases.

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. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

Keep in mind that the load of the roof still plays a role in the plywood thickness. Plywood typically comes in 4 8 ft. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of 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.

It will support roof. Steeper rather than flatter roofs will have lesser load per sq.