PC 1905 - Thunder Dome The Thunder Dome Frames shall be fabricated using 2.375" O.D. 11 gauge steel tubing with welded 1.315" O.D. 12 gauge steel rungs and 3/16" thick stainless steel anchors and steel frame plates and will be Powder Coated as specified. The Thunder Dome Insert Frame shall be fabricated using 2.375" O.D. 11 gauge steel tubing with welded 1.315" O.D. 12 gauge steel rungs and 3/16" thick stainless steel anchors, steel frame plates, and mounting flange and will be Powder Coated as specified. The Thunder Dome Ladder shall be made from 16 mm steel-reinforced rope with high-strength co-polymer plastic intersection connectors and machined aluminum end ferrules. The Thunder Dome Leg shall be fabricated using 2.375" O.D. 11 gauge steel tubing. The Thunder Dome Leg shall have a multi-stage baked-on powder coat finish. the Thunder Dome Platform frame shall be fabricated using 1.315" O.D. 12 gauge steel tubing with welded 12 gauge flange and 3/16" thick stainless steel anchors and will be Powder Coated as specified. The Thunder Dome Platform Tread, Peek Insert & Thunder Dome Cap Retainer shall be made from high density 3/4" sheet plastic specially formulated for optimum UV Stability and color retention. The Thunder Dome Wall shall be constructed of UV-stabilized, rotationally molded, linear, low density polyethylene with an average wall thickness of .250". The Thunder Dome Pad shall be constructed of UV-stabilized flexible rubber compound with slash proof, reinforced metal inserts.