Steel Building Frame Types

Select a frame type to see the 3D structural geometry and specifications.

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Modular Rigid Frame

Multi-Span

Multiple spans connected at interior columns — the most economical choice for wide buildings. Interior columns break the load into manageable segments. Best when columns won't interfere with your operations.

Terms explained

interior columns:
Vertical steel posts inside the building that carry roof loads. They reduce material cost but divide the interior floor plan.

Best for

Large warehousesManufacturing plantsDistribution centers

Specifications

Span range

30–80 ft

Span range on scale to 300 ft

0 ft 300 ft max

Compare all frame types

Frame typeSpan rangeInterior columnsAction
Multi-Span Modular Rigid Frame
30–80 ftYes — multi-spanViewing ↑
Clearspan Clearspan Rigid Frame
40–300+ ftNoneView 3D
Single Slope Single Slope
30–120 ftNoneView 3D
Lean-To Lean-To Addition
20–60 ftShared wallView 3D
Economy Gable Tapered Beam
Under 60 ftNoneView 3D
Offset Ridge Non-Symmetrical
40–150 ftNoneView 3D

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