Manufacturer: Vestil, Manufacturer Part Number: D-520-24Projection (in.): 24, Vinyl Flaps (oz.): 40, Armor pleated header curtain (in.): 36, Standard Guide Stipe Height (in.): 24, Maximum Door Width (in.): 120, Maximum Door Height (in.) : 120 – The Retractable Dock Shelter fits up to a one–hundred twenty (120) inch width by one–hundred twenty (120) inch height door. Independent spring loaded scissors mechanism allows shelter to retract with the trailer keeping the shelter square. The design also eliminates the need for rigid steel guide protectors. The reinforced vinyl flaps close the opening down to ninety (90) inch width by ninety (90) inch height. The header curtain has armor pleats for extended wear. Shelter is black with aluminum edge trim.