... SpansRoof Deck CantileverRECOMMENDED MAXIMUM SPANS FOR CONSTRUCTION ANDMAINTENANCE LOADS STANDARD FOR 1ẵ INCH AND 3 INCH ROOF DECK 1. Design Manual for Composite Decks, Form Decks and Roof Decks, ... Washington, D.C. 12. Manual of Steel Construction, Ninth Edition, American Institute of Steel Construction, Inc., Chicago, Illinois. 13. Specification for Welding Sheet Steel in Structures, ... pouring concrete. Floor deck, like roof deck, can be examined as a cantilever. However the SDI doesnot publish a cantilever table for floor deck because of the greatprofile variations available....