Osb For Shed Roof Thickness

This manufactured wood product is composed of small wood chips that are arranged in layers and glued together.

Osb for shed roof thickness.

The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. However there are some sceptics out there who doubt the strength and durability of osb. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

Currently we space rafters 16 oc and use 7 16 osb with h clips. Good enough for houses good enough for a shed. Osb is fine all the way around. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.

We re in dallas so we don t engineer for tremendous live loads for an asphalt shingle and we feel comfortable with 16 oc rafter spacing and 7 16 osb decking. For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. Osb is sold in 4 by 8 foot panels and the standard panel thickness for osb sheathing. Using oriented strand board osb for shed walls floors and roofs using oriented strand board is a tested way of reducing costs for building your shed.

Watch this now to learn how to avoid this same pr. 7 16 will be fine for 16 on center and 5 8 for 24 on center rafters. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. With edge support and the same snow load 3 8 inch osb can be used.

I m contemplating upgrading to 1 2 or even 5 8 osb though to reduce roof sag hopefully to nil. Osb roof decking thickness 7 16 1 2 or 5 8. For heavier loads a 40 20 rated panel 19 32 or 5 8 will support a 130 psf live load and 48 24 rated panels 23 32 or are good to175 psf. Currently costs about 30 more for an equivalent thickness.