The CMPW Mechanical platforms are designed to elevate rooftop mechanical units and other devices. CMPW Mechanical Supports comes either as a frame with rails or equipped with a deck made from 12? x 2-1/2? x 13 gauge steel grating (Referred to with a “D”). The support bases are C-Port CXW supports. The support platforms are customizable in all dimensions per the project requirements. Consult roofing manufacturer or engineer for roof loading. # of bases 4, Width 48", Length 48", Height 12"