Comparison : Item # 3,324, Aluminum 6061 T6 I Beam 3x2.33x0.17x0.17x12"
Item # 3,325, Aluminum 6061 T6 I Beam 3x2.33x0.17x0.17x24"
Item # 3,326, Aluminum 6061 T6 I Beam 3x2.33x0.17x0.17x36"
Item # 3,327, Aluminum 6061 T6 I Beam 3x2.33x0.17x0.17x48"
Item # 3,328, Aluminum 6061 T6 I Beam 3x2.33x0.17x0.17x72"