Medium duty truss 20.5x20.5 plated are equipped with bolts comes with standard lengths of 10’, 8’ and 5’. Custom lengths available upon request. Main chords are 2” OD x 1/8” aluminum. Diagonals are 1” OD x 1/8” aluminum. Studio version available with 2” OD x 3/16” main chords. Available with casters. Fabricated by certified welders.