Types of Steel Buildings

This traditional building type uses large, pre-formed steel I-beams as the primary structure. While strong, these rigid frame buildings often require cranes, specialty crews, and higher budgets. Customization is limited without retrofitting due to larger spans between connecting members, and they’re generally not considered DIY-friendly.

These buildings use fabricated plate beams instead of rolled I-beams, offering more customization for unique load requirements or extremely wide spans using tapered columns and rafters. Common in large commercial or industrial projects, plate beam-style buildings are rarely suited for residential, hobby, or self-build applications due to cost, complexity, design limitations as well as challenging to work with for most DIY – or smaller contractors.

Made from roll-formed, light-gauge steel components, cold-formed buildings can be a cost-effective option for smaller projects and milder climates. However, they typically lack the structural integrity needed for large clear spans and may underperform under heavy snow, high winds, or seismic stress.

Some systems attempt to reinforce cold-formed designs (using formed angles and rods) by incorporating structural steel cords but these hybrid approaches still often offer limited layout flexibility and reduced long-term durability compared to structural steel systems.

Popular in agricultural use, pole barns (aka stick built) are wood-framed buildings with metal siding and roofing. While cost-effective initially, they’re generally more susceptible to rot, pests, and warping over time due to wood posts going into the ground. They’re not technically “steel buildings,” though often grouped with them.  They also can’t always offer necessary resistance to high winds and heavier loads.

Using hollow tube framing, these are common for carports and small sheds. While easy to assemble, tube steel buildings are generally not engineered for larger spans, wind loads, or long-term durability.

Originally developed for military use, Quonset buildings are recognizable by their semi-circular or arched shape. Made from corrugated, cold-formed galvanized steel panels that bolt together, they’re often marketed as low-cost, DIY-friendly kits.

These structures may work well for basic storage or temporary use, but for most residential, commercial, or flexible-use projects, a clear-span hybrid web truss system offers far more adaptability, comfort, and long-term value.