• Joist :
In structural engineering, the open web steel joist (OWSJ) is a
lightweight steel truss consisting, in the standard form, of parallel chords and a
triangulated web system, proportioned to span between bearing points.
Open Web Steel Joists, K-Series, were primarily developed to provide structural
support for floors and roofs of buildings. They possess multiple advantages and
features which have resulted in their wide use and acceptance throughout the
United States and other countries.
Longspan (LH) and Deep Longspan (DLH) Steel Joists are relatively light weight
shop-manufactured steel trusses used in the direct support of floor or roof slabs
or decks between walls, beams, and main structural members.