Osb Roof Decking Thickness

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Osb roof decking thickness.

1 inch 25 4 mm. 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. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 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.

For pricing and availability. 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. Provides exceptional dimensional stability and stiffness.

They can range from the standard 4 x 8 piece to a 4 x 9 or even a 4 x 10. 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. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

Oriented strand board 660663 the home depot. 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 uses are as sheathing in walls flooring and roof decking. Because of its construction some manufacturers actually make larger sheets 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. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. With edge support and the same snow load 3 8 inch osb can be used. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

Product may vary by store. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. However you might find that osb can better suit your needs than plywood for the roof.