Specialty Joists

Bowstring Joist

Scissor Joist

Pitched Joist

Composite Joist

The term “Composite Steel Joist”, as used herein, refers to an open web, parallel chord, load carrying member suitable for direct support of one-way floor or roof systems. Members may consist of hot-rolled or cold-formed steel, including cold-formed steel whose yield strength* has been attained by cold working. Shear connection between the joist top chord and overlying concrete slab allows the steel joist and slab to act together as an integral unit after the concrete has adequately cured.

Longspan Steel Joist

Longspan and Deep Longspan Steel Joists are relatively lightweight shop-fabricated steel trusses.  Longspan steel joists and Deep Longspan Steel Joists are used for the direct support of floor or roof slabs or decks between walls, beams, and main structural members.  The LH and DLH series have been designed for the purpose of extending the use of joists to spans in excess of those covered by Open Web Steel Joists.

Woodnailer Joist

‘Wood-nailer’ projects have a section of wood (sized to the top-cord of the joists on the project) attached to the top chord of the open web steel joist.  This woodnailer wood strip allows the erector to attach sheets of plywood or ‘OSB’ to the joist, thus forming the deck of the roof.  Often the deck and the joist are ‘panelized’ on the ground before erection onto the building...thus saving time and money.