32 X 81 X 5 inches The Attic Tent is a specially engineered, patented insulator designed to create an air transfer barrier between your attic and living areas. Main Materials: Nylon Fabric and Polyurethane Form + Flame Retardant AT-6 Dimensions 32" Wide - 81"0 Length - 5" height clearance with a 2" mounting Flange Note: Can used for standard sized full size doors (mounted vertically) and for attic openings with these dimensions