Standard Sheets Of Roof Sheathing Sizes

Chart represents most common plywood sheet sizes in inches imperial system and millimeters metric dimensions.

Standard sheets of roof sheathing sizes.

The typical thickness range for sheathing is 3 8 to 3 4 inch. A standard sheet measures 4 by 8 feet and comes in a range of thicknesses with specialty sizes also available. Standard widths and lengths the widths and lengths of plywood sheets manufactured for use in the u s. Sheathing should be a minimum of 19 32 inch thick.

Are measured in english units while those manufactured for use in europe canada japan and other countries that use the metric. Standard lengths for corrugated roofing are 8 10 and 12 feet. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. 8d ring shank nails should be used instead.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Never attach roof sheathing with staples. It also holds roofing nails well. The common grade of plywood for roof sheathing is cdx.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Most of plywood sheets available in different thicknesses. The width is measured simply straight across the top of the sheet from. Softwood plywood typically used for rough framing comes in 4 x 8 feet 1220 x 2438 millimeters sheets.