The double rail collapsible with removeable top shelf is made to the same standards as our single and double rail collapsible racks. The top shelf is made of durable, wire grid with a 3.25" high lip, to prevent items from falling off while in transit. The shelf measures 54.25" long and 22.75" wide. Both parallel hang bars are 4-ft long and have 3 different height settings. Each hang rail has a 1-ft pull out extension on each end - giving you an additional 2 feet of horizontal hang space per rail. This double rail unit has a 250 lb load capacity, which is more than enough to hold both rails full of clothing.This unit ships in 2 cartons