Metal Building Frame Types and Structural Options

Understand the structural systems that define how your steel building performs. From clear span designs to multi-span and lean-to frames, each option delivers distinct benefits for width, load capacity, and interior flexibility.

Clear Span – Tapered Column

Clear span tapered column frames create a wide, unobstructed interior with no interior support columns, making them ideal for buildings that require maximum open floor space. This frame type is commonly used for gymnasiums, aircraft hangars, warehouses, and indoor recreational facilities where long, clear widths improve functionality and layout flexibility.

Available Dimensions:

Width: 20’ to 300’+
Height: 10’ to 60’+
Roof Slope: 1/2:12 to 2:12
Styles: Gabled or Single-Sloped

Clear Span – Straight Column

Straight column clear span frames offer a clean, column-free interior that maximizes the usable footprint. This configuration is well-suited for offices, retail buildings, convenience stores, fire stations, and free-standing commercial structures where efficient square footage and straight interior lines are required.

Available Dimensions:

Width: 20’ to 150’+
Height: 8’ to 60’+
Roof Slope: 1/2:12 to 1:12
Styles: Gabled or Single-Sloped

Multiple Span

Multiple span frames include interior support columns that distribute structural loads across wider distances. This design significantly reduces the cost of extra-wide buildings while providing large, efficient floor areas. It’s the preferred choice for distribution centers, manufacturing facilities, industrial plants, and large warehouse operations.

Available Dimensions:

Width: 30’ to 600’+
Height: 20’ to 60’+
Roof Slope: 1/2:12
Styles: Gabled or Single-Sloped

Lean-To

Lean-to frames offer a cost-effective way to expand an existing steel building, adding extra space without major structural changes. They are ideal for building additions, equipment storage, small offices, covered walkways, and supplemental storage areas.

Common Uses:

Add-on space
Storage extensions
Equipment shelter
Small attached office structures