Steel Roof Joists Sizes

Lean to trusses are stocked in a 1 12 slope x 12 and 20 width and special order up to 30 wide.

Steel roof joists sizes.

Structural track usually in the same gauge as the joist is used as rim or band enclosures. Standard specifications for k series lh series and dlh series open web steel joists and for joist girders sji 100 2020. Gable lean to and header. 20 foot to 120 foot spans.

Joist to girder attachments are normally supported with joist hangers easyclip e series or s series support clips. Header trusses are special order 12 and 24 are common sizes but are available up to 30 wide. About o donnell metal deck. Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing.

They are custom engineered to suit the design of each building. Steel joist institute standard specifications load tables weight tables. 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. 20 inch to 120 inch depths.

Steel trusses come in three types. Slh series joists are used to support loads over very long spans typically 120 and greater.