The frame is the skeleton of your steel building. Two of the most common I-beam frame types are clear-span and multi-span. The difference comes down to one question: do you need a wide-open interior, or can you work around a few columns?

Clear-Span: Nothing in the Way

A clear-span frame has no columns inside the building. The frame runs from one side wall to the other.

Good fit if you need:

• Open floor for equipment, vehicles, or aircraft
• Room for large events or gatherings
• Flexible layouts you can change later

Multi-Span: Columns Inside, Savings Built In

A multi-span frame adds interior columns that share the load. Those columns let the building go very wide while using less steel.

Good fit if you need:

• A very wide building, like a large warehouse or distribution center
• Space where a few columns won't get in the way, like aisles of racking
• The most building for your budget at larger widths

How to Choose

Picture how you'll use the floor. If forklifts, vehicles, or crowds need to move freely everywhere, clear-span is usually the answer. If your space naturally divides into rows or zones, multi-span can give you more width for less.

Not sure? Tell us how you plan to use the building. We'll recommend the frame that fits your project and your budget.

Every Duro Beam building is engineered to code for where it's delivered and arrives pre-cut, pre-punched, and ready to bolt together.

Ready to compare? Request pricing and we'll help you pick the right frame.