Commercial PBR Panel (Purlin Bearing Rib) is a 26-gauge Grade 80 Galvalume exposed-fastener metal roofing panel engineered for high load capacity and wide structural spans. Each panel covers 36 inches of width and is custom-cut to length. It is the industry standard for commercial, industrial, and large agricultural buildings, supporting purlin spacings up to 48 inches OC on roofs and 72 inches OC on walls.
Technical Specifications
| Property | Value |
|---|---|
| Gauge | 26 gauge |
| Steel Grade | Grade 80 |
| Substrate | AZ50 Galvalume |
| Panel Coverage | 36 inches (3 sq ft/lf) |
| Fastener Type | Exposed fastener |
| Max Purlin Spacing (Roof) | 48" OC |
| Max Purlin Spacing (Wall) | 72" OC (6 ft) |
| Paint System | WeatherXL |
| Warranty | WeatherXL Paint + Red Dot Galvalume |
About This Profile
The PBR (Purlin Bearing Rib) panel is the industry standard for commercial and industrial metal roofing. Engineered for wide-span applications with high load requirements, it's the panel of choice for warehouses, manufacturing facilities, large agricultural complexes, and commercial construction. Heavy-duty performance at scale in 26 gauge Galvalume.
Key Features
- ✓Purlin bearing rib design
- ✓1-1/4" high ribs · 12" rib spacing · 36" coverage
- ✓Wide-span structural capability
- ✓High load and wind resistance
- ✓Exposed fastener system
- ✓Made to custom lengths
Best For
- →Commercial buildings
- →Warehouses & distribution centers
- →Manufacturing facilities
- →Large agricultural complexes
Panel Profile
What this panel actually looks like in cross-section — including how it's fastened.
High ribs on 12-inch centers carry the load, and exposed fasteners seat in the flat plane right beside the rib — never through the rib itself, the same fastening rule as our Tuff Rib Ag profile. At 1-1/4" high, the ribs provide the structural depth PBR is known for — purlins up to 48" on center on the roof, 72" on walls.
Available Colors
Galvalume is the unpainted metallic finish. Colors shown on screen are approximate — free metal samples available for 100% color matching.
Trim Options
Every trim piece is fabricated to your exact specifications in matching panel colors — not a generic off-the-shelf approximation.
Warranty Coverage
- ✓25-Year Galvalume metal warranty — the metal itself, on every profile.
- ✓40-Year Weather XL Paint Warranty — The Commercial PBR panel uses the Sherwin-Williams Weather XL paint system.
Frequently Asked Questions
What gauge is Commercial PBR Panel?
Commercial PBR Panel is 26-gauge Grade 80 Galvalume — the same steel grade as Tuff Rib Ag, but in a structurally deeper profile with 1-1/4" ribs on 12-inch centers.
What is the difference between PBR and Tuff Rib Ag?
Both are 36-inch exposed-fastener panels, but their structural capacities are very different. PBR's taller ribs allow purlin spacings up to 48" on center on roofs and 72" on walls — far wider than Tuff Rib Ag's 24" roof limit. PBR is designed for commercial, industrial, and large agricultural buildings that need greater structural span.
How wide does Commercial PBR Panel cover?
Each PBR panel covers 36 inches (3 feet) of width. One linear foot of PBR equals 3 square feet of coverage — the same as Tuff Rib Ag.
What purlin spacing is allowed with Commercial PBR?
Up to 48 inches on center for roof applications and up to 72 inches (6 feet) on center for wall applications. This wide span capability is what makes PBR the industry standard for commercial and industrial buildings.
What warranty comes with Commercial PBR Panel?
Commercial PBR carries a 40-year WeatherXL paint warranty and a 25-year Red Dot Galvalume metal warranty.
How fast can I get Commercial PBR panels?
Most stock-color orders are ready within 24–48 hours at our Westfield, MA shop. We roll PBR to your exact cut lengths.
Ready to Order Commercial PBR Panel?
Tell us your project specs, square footage, and color choice — we'll confirm your timeline and get your custom cut started.