Classification of steel decks

Steel deck is divided into composite steel deck, form deck,steel wall deck and steel roof deck.

• Composite steel deck:
  

The steel deck can be used both as a form work and as a reinforcement for the bottom of the slab. After installation and adequate fastening, floor deck serves several purposes. It (a) acts as a working platform (b) stabilizes the frame (c) serves as a concrete form for the slab and (d) reinforces the slab to carry the design loads applied during the life of the building. 

Composite decks are distinguished by the presence of shear connector devices as part of the deck. These devices are designed to mechanically lock the concrete and deck together so that the concrete and deck work together to carry subsequent floor loads. The shear connector devices can be rolled into embossments, lugs, holes or wires welded to the panels. The deck profile configuration can also be used to interlock concrete and steel.

Composite deck finishes are either galvanized (zinc coated) ,Galvanized deck has a zinc coating on both sides.

• Form deck
  

The steel deck is only used as a form work and does not participate in the force of the floor; Form deck can be any floor or roof deck product used as a concrete form. Connections to the frame are by the same methods used to attach floor and roof deck.Form deck is furnished galvanized, prime painted.

• Steel roof deck&wall deck

Colored steel decks used on the roof&the wall ,Standard roof deck finishes are galvanized or color coated Galvalume.The roof panel is connected with steel beams or purlins by screws, or by concealed clips.