Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing.
Metal roof joist sizes.
Standard size of joists though there is no standard joist size for the ceilings in all buildings most average homes use ceiling joists in a board size of 2 by 6 inches.
The range of joist sizes used in homes varies though between 2 by 4 inches and 2 by 12 inches.
These welded steel products are used to support a building s roof and floors.
Structural track usually in the same gauge as the joist is used as rim or band enclosures.
20 inch to 120 inch depths.
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.
Some of the typical special profiles include gable joists and arched joists.
Slh series joists are used to support loads over very long spans typically 120 and greater.
About o donnell metal deck.
K series joists range in depth from 10 to 30 and can span up to 60.
20 foot to 120 foot spans.