Rondo Steel Stud & Track Wasll Framing System Stud (0.55 BMT) sizes available: 51mm x 2.4m 51mm x 2.7m 51mm x 3.0m 51mm x 3.6m 64mm x 2.4m 64mm x 2.7m 64mm x 3.0m 64mm x 3.6m 76mm x 2.4m 76mm x 2.7m 76mm x 3.0m 76mm x 3.6m 92mm x 2.4m 92mm x 2.7m 92mm x 3.0m 92mm x 3.6m 92mm x 4.2m Track sizes available 51mm x 3.0m 64mm x 3.0m 76mm x 3.0m 92mm x 3.0m