Heat sealed channels are every 1.5 inches apart & run across the roll.
20 oz per Linear Yard, 25. FeaturesMarine grade upholstery vinyl with heat-sealed channels. 37. Ennis will not be honoring claims on white vinyl due to dye transfer issues from clothingCrypton Leather & Vinyl Cleaner & Restorer can be used to remove the dyeUses:Upholstery OutdoorSpecificationsColor: Off WhiteAbrasion: Exceeds 30,000 Double RubsBacking Content: 100% Polyvinyl ChlorideCold Crack: Cold Crack is equal to or greater than -28 degrees Celsius & -18 FahrenheitConstruction: QuiltedContent: 100% Polyvinyl ChlorideFill Content: 100% PolyesterFire Retardancy: UFAC Class 1 NFPA 260 Class 1 California Bulletin 117-Section EUltraviolet: Product is Rated Ultraviolet Resistant equal to or greater than 1500 hoursMildew: Mildew ResistantRailroaded: RailroadedWidth: 54"Weight: 849.