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Butler defines the standard for precision and quality—delivering integrated building systems with control and consistency. From PEMB to hybrid and retrofit, we align early to reduce risk and drive predictable outcomes.

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Explore a library of technical documents, product information and visual assets to support planning and design—from downloadable resources to image libraries.

About

For decades, Butler has defined the standard for quality and performance in steel building systems. Through precision-engineered systems and a nationwide Builder® Network, we deliver the consistency and reliability projects demand.

Butler primary framing system featuring rigid steel columns and rafters, engineered to form the structural backbone of the building, delivering load-bearing strength, clear spans, and integrated performance within a complete building system.

Primary Framing

Engineered structural framing designed for strength, accuracy and long-term building performance.

Structural Assurance

The structural backbone of every Butler Building

Primary framing is where confidence begins. It carries the weight of the building’s purpose, shapes how space is used and determines how well the structure performs over time. Our framing solutions are designed to create open, flexible interiors that adapt as needs change, supporting today’s operations while leaving room for what comes next. Precision and consistency behind the scenes help the building come together smoothly, reducing uncertainty during construction and reinforcing trust in the final result. As part of a fully coordinated building system, primary framing provides the stability that everything else depends on delivering strength, longevity and lasting value from the ground up.

Features

Diagram of rigid-frame steel building sections showing tapered rafters, columns, and varying roof profiles

Structural framing engineered for load capacity, alignment and system integration

  • Structural framing supports clear spans up to 300′ for large open interiors.
  • Modular framing layout with repeatable bay spacing enables phased construction and expansion. 
  • Available with straight, tapered, reverse taper and supermarket column configurations. 
  • Expandable endwall design allows for future lengthening without major disruption.

Product Specs

Frame Type
Clearspan, modular and expandable endwall framing
Maximum Clear Span
Clearspan frames up to 300′ wide
Column Configurations
Straight, tapered, reverse taper and supermarket columns
Roof Geometry
Single-slope and double-slope roof configurations
Endwall Options
Expandable and non-expandable endwall designs
Secondary Framing Integration
Compatible with Truss PurlinXT for bay spacing up to 60 feet
Secondary Members
Integrates with G-30 acrylic-coated C and Z framing
Structural Role
Supports roof, wall and building loads
System Integration
Coordinates with Butler roof, wall and secondary framing systems
Warranty
Backed by Butler structural system warranty

CONTACT US

Talk with Butler to bring clarity to your project early. Our team helps align design intent, performance requirements and delivery expectations so you can move forward with confidence.

FIND A BUILDER

Locate an authorized Butler Builder® in your area. Our nationwide network makes it easy to identify experienced partners who work within Butler systems and share the same commitment to quality as we do.