Structural Steel & Beam Rolling
Pacific Roll specializes in structural steel rolling and beam bending for fabricators, contractors, architects, engineers, and manufacturers. Located in Riverside, California, we serve Southern California — including Los Angeles, Orange County, San Diego, and the Inland Empire — as well as Arizona, Nevada, and customers throughout the United States.
We form structural beams, HSS, tube, pipe, channels, angles, and other steel sections into required radii, curves, and complex geometries — to your specifications.
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Structural Steel Rolling
Structural steel rolling requires specialized equipment, purpose-built tooling, and hands-on experience. Standard press brakes and bending machines cannot produce the smooth, continuous curves that structural sections require — and attempting to roll a wide-flange beam or HSS section without proper die support results in flange spread, web distortion, cross-section collapse, or cracking at the corners.
Pacific Roll's section rolling equipment and tooling are designed specifically for structural steel bending. We roll the following sections:
- —Wide-flange beams (W-shapes)
- —I-beams (S-shapes)
- —HSS square tube
- —HSS rectangular tube
- —Structural pipe
- —Channels (C and MC)
- —Angles (L-shapes)
- —Plate
- —Other structural sections
Whether your project calls for a single curved member or a complete set of matching curved pieces, we work from your radius, arc length, and section designation to deliver parts that fit up correctly in the field.
Large-Capacity Beam Rolling
Pacific Roll operates large-capacity beam rolling and beam bending equipment capable of handling the deep, heavy sections that most shops cannot roll. We roll wide-flange beams up to 36 inches in depth, both the strong way and the weak way, using proprietary tooling that constrains the flanges and web throughout the roll to prevent the distortion that is the most common failure mode when rolling deep sections without proper support.
Actual capacity depends on the section size, material grade, wall thickness, required radius, orientation, and geometry. A section that rolls easily to a large radius may require additional passes or different tooling at a tighter radius. Send us your section designation and radius and we will tell you directly whether we can roll it and what to expect.
For detailed HSS and tube bending, see our HSS & Tube Bending page. For cambering, see Beam Cambering.
HSS Tube Rolling & Bending
Pacific Roll rolls and bends square and rectangular HSS for structural, architectural, and industrial applications. HSS sections are widely used in structural rolling for their torsional stiffness, clean appearance, and versatility — but they require careful tooling to prevent cross-section distortion during rolling. Our equipment is set up to handle HSS without the corner cracking or face buckling that can occur when these sections are rolled without proper die support.
We roll HSS into arches, full rings, partial curves, and complex multi-plane geometries. Round HSS and structural pipe roll predictably to tight radii and are common in handrail systems, curved canopy framing, and architectural feature elements. Square and rectangular HSS are used in curved perimeter framing, curved stair stringers, and exposed structural applications where the clean flat face of the section is part of the design intent.
See also: HSS & Tube Bending, Induction Bending, and Pipe Rolling & Bending.
Architectural & AESS Steel Rolling
Architecturally Exposed Structural Steel (AESS) demands a higher standard of consistency and appearance than concealed structural work. Curved beams, arches, canopies, feature structures, and stair systems that will be visible to building occupants must be rolled to accurate geometry with smooth, consistent curvature and minimal surface marks from the rolling process.
Pacific Roll works with architects, engineers, and fabricators on AESS projects throughout Southern California and beyond. We understand that on an exposed structural element, the geometry has to be right — not close — and we work to the tolerances your project requires. For spiral stair stringers and helical structural elements, see our Spiral Bending page.
Multi-Plane & Complex Structural Bending
Some projects require more than a simple two-dimensional radius. Helical stair stringers, curved ramps, twisted structural members, and specialty architectural elements may require bending in multiple planes, multiple radii in a single piece, or compound curves that combine a horizontal and vertical radius simultaneously.
Pacific Roll has experience with multi-plane and complex geometry bending. Where the geometry requires it, we use custom jigs and fixtures to verify the shape during and after rolling. If your project involves geometry that goes beyond a standard single-radius bend, contact us with your drawings or CAD files and we will work through the forming approach with you before quoting.
Structural Steel Rolling for Fabricators
Most structural steel fabrication shops do not own section rolling equipment. When a project calls for curved beams, rolled HSS, or bent structural sections, the fabricator needs a reliable rolling subcontractor who can deliver accurate parts on schedule.
Pacific Roll works directly with fabrication companies as a specialized rolling and bending subcontractor. Your shop maintains control of the rest of the fabrication project — connections, welding, coating, and delivery — while we handle the rolling work. We ship rolled pieces back to your shop ready for fit-up, or we can coordinate delivery directly to the job site when that works better for your schedule.
We also offer CNC plasma cutting and full fabrication services, so we can combine cutting, rolling, bending, and welding when your project benefits from having those operations in one place.
Applications
Commercial Construction
Arched roof systems, curved curtain wall framing, circular mezzanine edges, barrel vault structures, and curved perimeter beams for commercial buildings throughout Southern California, Los Angeles, Orange County, and San Diego.
Architectural Structures
Exposed architectural steel, curved canopies, feature arches, entry structures, and specialty elements where geometry and appearance are both critical.
Industrial Equipment
Circular equipment platforms, pipe rack headers, overhead crane runways, and structural ring frames for industrial facilities in the Inland Empire, Arizona, and Nevada.
Infrastructure
Horizontally curved bridge girders, curved transit structures, and infrastructure elements where the alignment follows a curve.
Entertainment & Specialty
Theme park ride structures, show set framing, stadium and arena roof framing, and specialty structures where the geometry is driven by the design intent rather than a rectilinear grid.
Stair Systems
Curved and helical stair stringers, curved handrail systems, and spiral stair structural elements. See our dedicated Spiral Bending page for more detail.
Why Pacific Roll
Large-capacity rolling
Wide flange beams up to 36 inches — sections most shops cannot roll.
Difficult forming projects
Experience with deep sections, tight radii, and complex geometry that requires more than standard equipment.
Structural & architectural
We work on both concealed structural work and AESS applications where appearance matters.
Multi-plane & complex geometry
Helical stringers, compound curves, and multi-radius pieces in a single member.
Cutting & fabrication
CNC plasma cutting, full fabrication, and welding available — combine operations when it saves you time and freight.
Nationwide shipping
Based in Riverside, CA. We ship rolled structural steel to fabricators and job sites across the country.
Request a Quote for Structural Steel Rolling
The most useful information to include with your inquiry:
- —Section size and designation
- —Material grade
- —Wall thickness (for HSS and pipe)
- —Required radius
- —Bend angle or arc length
- —Quantity
- —Drawing or CAD file (if available)
- —Required tolerance
- —Required delivery date
Don't have every detail yet? Contact us anyway — we're happy to discuss your project at any stage.