Fits between wall studs (16" centers) for easy installation in any stage of construction or remodel * Delivery door mechanism (SOLD SEPARATELY) is set forward 4 inches for flush mount to exterior walls * Dual Posi-Lock System with Delivery ViewPort - storage compartment access door * Constructed from heavy-duty 16 gauge galvannealed-steel with durable powder coated finishes * Stainless steel hinges and fasteners