Thickness Osb For Desk Roof

Once the spacing hits 24 inches a 5 8 inch thick sheet is more ideal.

Thickness osb for desk roof.

Osb roof decking thickness 7 16 1 2 or 5 8 if were using osb we get 9 16 we dont worry about getting both 7 16 and 9 16 for walls then the roof we just get all of the same. For this you can either go for a half inch or 5 8 inch thick sheet. When this is the case experts recommend a 5 8 inch thick sheet. With edge support and the same snow load 3 8 inch osb can be used.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. 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. Thicknesses range from 5 16 to 3 4 inch and the proper one. 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.

A flatter roof with rafters farther apart may need a thickness of up to inch. Using osb osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. This way no worrying about grabbing scraps to fill in small spots and not having the correct thickness. Keep in mind that the load of the roof still plays a role in the plywood thickness.

Most roofs are spaced at least 20 inches apart. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. It s also important to keep in mind that osb boards are available in different grades and use classes. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.

Whether you need osb products as loadbearing or reinforcing boarding on ceiling joists in attics as roof or wall panelling or as flooring the right thickness depends on the application and the loads they must support.