Slabs Description Flat Slab Voided Biaxial Slab Ribbed Slab Waffle Slab Holedeck Hollow Core Composite Solid Prestressed Soffit Slab (CSPSS) Composite Lattice Prestressed Soffit Slab (CLPSS) Precast Double-Tees Steel-Concrete Composite Slab Slim-Floor Timber-Concrete Composite Slab Laminated Timber Slab