Primer-painted or galvanized finishes are available for New Millennium steel decks. The standard primer-painted finish is gray on both the top and bottom sides. The galvanized finish is available in G30, G40, G60 and G90 coatings. Decks can also be furnished with two-coat bright white primer bottom sides combined with either primer-painted or galvanized topsides. The primer-painted finish is intended to protect the steel for a reasonable installation period while exposed to ordinary atmospheric conditions and shall be considered an impermanent and provisional coating. Always store steel deck off the ground with one end elevated and protected from the elements with a weatherproof covering that is ventilated to avoid condensation.