Commercial Grade Manufactured in the United States from domestically procured and inspected materials. Extra Heavy duty for years of use! 1 In. x 16 gauge zinc plated steel tubing will not rust, pit, peel or discolor. Automatic opening and folding, with 9 gauge Z hooked, zinc plated NO-SAG wire. Supra-Loop is the same patented suspension system used in upholstered furniture and automobile seating; it provides superior and long lasting support. Bed stands on our 4 In. ball-bearing hard composite tires for easy maneuverability. Furnished completely assembled and with 6 In. thick, 1.35 density poly foam mattress. The mattress cover is zippered, double sided, 8 gauge STAF-CHECK hospital grade green vinyl. The mattress cover is repairable before it is replaceable by using duct tape from the inside and comes complete with a full envelope zipper for easy repairs. Sizes: 30 In., 39 In., or 48 In. wide; all 72 In. long. STAF-CHECK is the same patented product used in hospital beds. A 250 pound weight limit is suggested. When folded, bed measures 50 In. high, 18 In. deep, width varies 30 In., 39 In. or 48 In. according to model. The height from the floor to the top of the mattress is 16 In.Mattress and Cover is FIRE RETARDANT - Tested meeting USA and California Laws.Click Here For Compliance Certificate, Click Here For Fire RatingQuantity Discount Available.