The Excel Truss is designed to provide added strength in applications where normal horizontals may not be strong enough to carry the necessary loads.
Tubing for TR4, TR5, TR6, and TR7 is 1.90 dia. 12ga (0.108 wall), high strength min. 65,000 yield, 75,000 tensile.
All other trusses are manufactured with 1.90 dia. 11ga (0.120 wall), high strength min. 65,000 yield, 75,000 tensile.