Steel Roof Joists Sizes

Header trusses are special order 12 and 24 are common sizes but are available up to 30 wide.

Steel roof joists sizes. 20 foot to 120 foot spans. About o donnell metal deck. These welded steel products are used to support a building s roof and floors. Lean to trusses are stocked in a 1 12 slope x 12 and 20 width and special order up to 30 wide.

K series joists range in depth from 10 to 30 and can span up to 60. K lh and dlh series steel joists joist girders and lh and dlh series joists available as single or double pitched single piece steel joists can be produced up to 90 feet long joist girders. Slh series joists are used to support loads over very long spans typically 120 and greater. 20 inch to 120 inch depths.

Steel trusses come in three types. Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing. Steel joist institute standard specifications load tables weight tables. Gable lean to and header.

They are custom engineered to suit the design of each building. Structural track usually in the same gauge as the joist is used as rim or band enclosures.