This is the entry point into dual truss construction. Trusses are spaced at 10 ft centers. Wider spacing means fewer trusses, lower steel density, and lower snow load capacity. This system works best in low to moderate snow regions where ground snow load stays under 1.8 kPa.
Dual truss design spreads weight better than single tube frames, but spacing still matters. With 10 ft spacing, snow load transfers across longer spans, which limits how much weight the structure is rated to handle. This option suits seasonal storage, equipment cover, and areas with predictable winters.

This is the most popular dual truss system. Trusses are spaced at 8 ft centers, increasing frame density by 25 percent over standard dual truss. Shorter spacing means snow weight gets distributed more frequently into the ground, reducing stress on each truss.
This system is rated for mid to higher snow regions up to roughly 2.2 kPa. It is a strong balance between cost, strength, and long term reliability. Ideal for shops, farms, commercial storage, and customers who want margin for heavier winters without stepping into the highest tier.

This is the heavy duty option. Trusses are spaced at 6 ft to 6 ft 6 in centers depending on size. This tight spacing creates a dense structural grid designed for high snow loads and demanding conditions. Snow weight transfers rapidly into the ground with minimal span between trusses, which significantly increases load capacity and structural stiffness.
This system is built for high snow regions above 2.2 kPa, mountain areas, and critical use cases where failure is not acceptable. This is the right choice for customers who want maximum strength, long service life, and confidence through extreme winters.