Osb Roof Decking Thickness

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

Osb roof decking thickness.

Oriented strand board 660663 the home depot. Provides exceptional dimensional stability and stiffness. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. 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.

Product may vary by store. 1 inch 25 4 mm. The most common uses are as sheathing in walls flooring and roof decking. They can range from the standard 4 x 8 piece to a 4 x 9 or even a 4 x 10.

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 pricing and availability. Osb roof decking thickness 7 16 1 2 or 5 8 currently we space rafters 16 oc and use 7 16 osb with h clips. 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.

For pricing and availability. With edge support and the same snow load 3 8 inch osb can be used. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. More product details close. Osb is a material with high mechanical properties osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction. 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.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. Because of its construction some manufacturers actually make larger sheets of osb.