Spill Containment Berm Bottom Inside Dimensions 12 ft W x 12 ft L Bottom Inside Length 12 ft Bottom Inside Width 12 ft Color Black Dimensions 12 ft W x 12 ft L Height 12 in Includes L Bracket Includes Wellhead Hood No Indoor/Outdoor Use Indoor Outdoor Length 12 ft Manufacturer Warranty 1 yr Material Polyethylene Material Thickness 40 mil Recycled Content ( Percent) No Recycled Content Shape Square Sidewall Support Material Aluminum Sidewall Type L Bracket