G-Rib Metal Roofing & Siding
The steel shell of your building.
Our building packages include premium G-Rib (Ag Panel) steel roofing and siding, one of the most widely used and trusted panel profiles in the post-frame building industry.
Built for post-frame buildings
Designed specifically for agricultural, residential, and commercial applications, these panels provide long-lasting protection, durability, and a clean finished appearance.
The deep rib profile adds strength while the anti-siphon design helps create a weather-tight seal against rain and wind. Each panel is custom-cut to the required length for your building package, helping reduce waste and simplify installation.
Finished with a high-performance CERAM-A-STAR paint system and backed by a 40-year paint warranty, our steel panels are built to withstand the elements while maintaining their appearance for years to come.
Steel quality that carries the warranty
Panels are formed from high-quality coils manufactured to tight thickness tolerances for consistent strength and appearance. Our standard 40-year painted panels are produced from steel with a minimum Grade 80 yield strength and feature an AZ50 Galvalume coating, the standard substrate used to support long-term paint system performance.
Whether you are building a garage, workshop, storage building, or agricultural structure, Ag Panel steel provides the strength, protection, and low-maintenance performance that post-frame buildings are known for.
What about 28 gauge vs 29 gauge?
Our standard steel panels are premium 29-gauge material selected for their proven strength, durability, and long-term performance. The actual thickness difference between typical 28 and 29-gauge panels is extremely small, about 0.0005 inch, barely the thickness of a sheet of paper.
Factors such as the steel grade, protective coating, paint system, and panel profile have a much greater impact on weather resistance and service life than this slight difference in thickness. A high-quality 29-gauge panel made from premium steel and coatings provides excellent structural performance for the vast majority of post-frame buildings. While 28-gauge panels may offer a modest advantage in resisting installation-related dents, proper installation practices and selecting the right panel profile matter far more than the small difference in gauge alone.
Key features
- Available in 29-gauge or 26-gauge steel
- 36" panel coverage width
- 9" rib spacing
- 3/4" rib height
- Custom cut to length for your building package
- Available in a variety of attractive colors
- CERAM-A-STAR 1050 paint system (Siliconized Modified Polyester)
- 40-year paint warranty
- Galvalume-coated steel substrate for superior corrosion resistance
- Anti-siphon leg design for enhanced weather protection
Common questions
Can I choose my panel colors?
Yes. Panels are available in a variety of colors, and roof, siding, and trim colors are selected independently in the 3D designer.
Are the panels cut before delivery?
Yes. Each panel is custom-cut to the required length for your building package, which reduces waste and simplifies installation.