How Thick Osb For Shed Roof

However there are some sceptics out there who doubt the strength and durability of osb.

How thick osb for shed roof.

7 16 will be fine for 16 on center and 5 8 for 24 on center rafters. Structurally osb and plywood are very similar in strength and ability to hold nails or screws. Using oriented strand board is a tested way of reducing costs for building your shed. Oriented strand board osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction.

It will support roof. Plywood with similar properties currently costs about 30 more for an equivalent thickness. 8 tips for getting the best out of your oriented strand board osb how to install roof sheathing pro builder. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

18mm was initially chosen for its strength. The osb thickness will be based on the rafter spacing. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. You need to find a sheathing with a span rating of at least 32 16 which means either 15 32 or 1 2 thick osb.

Plywood shed flooring is usually 3 4 inch and osb 5 8 inch thick. 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. A viable alternative to plywood this osb board is engineered to prevent any cupping warping or splitting. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Good enough for houses good enough for a shed. Why waste ply on a roof unless its rough shuttering ply 12mm wbp is perfectly fine if your feeling really tight osb 3 aka stirling board will do the trick i figured hardwood plywood would be a better choice since it s more substantial. Osb may have greater shear strength the ability to span distances than comparable thickness of plywood.

With edge support and the same snow load 3 8 inch osb can be used. Roofing plywood sizes material wood joist and plywood or osb decking oriented strand board common 15 32 in roof decking material thickness osb or plywood for roofs walls roof deck materials to ensure a le.