Clear-span steel arch
Quonset Hut (Arch Building)
The Sun & Steel 30' Clear-Span Quonset Hut comes in three models to suit any structural demand. All models feature 100% usable clear-span interior space, self-supporting corrugated steel arch panels, commercial-grade Galvalume Plus coating for superior rust resistance, and high-strength Grade 8 flanged bolts.
The Standard Model delivers proven structural integrity utilizing 20-gauge steel panels — reliable, cost-effective, and built to withstand moderate to heavy environmental stresses. The Heavy Model pushes further with ultra-thick 18-gauge steel, reinforced base channels, and a double-bolted lap seam — engineered for extreme snow loads, hurricane-force winds, and the most demanding industrial applications.
Lite — where snow is rare and light · Standard — built for frequent and moderate snow loads · Heavy — tightest arch spacing and heavier gauge for the deepest snow loads
Built to your site
Standard and Heavy frames in adjustable lengths and bay spacings. Stamped engineering, exact pipe and gauge schedules ship with the engineered order — not the public configurator.
Reference specifications shown for the 30' × 100' Quonset Hut (Lite) (Lite) build — framing scales proportionally across every length below.
Reference specifications shown for the 30' × 100' Quonset Hut (Standard) (Standard) build — framing scales proportionally across every length below.
Reference specifications shown for the 30' × 100' Quonset Hut (Heavy) (Heavy) build — framing scales proportionally across every length below.