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R-Panel Galvalume
$2.90
26-gauge Galvalume R-Panel — the unpainted workhorse for carports, hay barns, equipment sheds, ag buildings, and utility roofs across Southeast Texas. Mill-finish silver Galvalume with no paint to chip, no color to fade — just zinc-aluminum alloy doing its job. Cut to your exact linear footage same-day at our Houston yard.
Specifications
| Profile | R-Panel / PBR Panel (Purlin-Bearing Rib) |
|---|---|
| Gauge | 26 (0.0185″ actual thickness) |
| Steel grade | Grade 80 (80,000 psi minimum yield) |
| Cover width | 36″ |
| Rib height | 1.25″ |
| Rib spacing | 12″ on-center |
| Substrate | ASTM A792 Galvalume — AZ55 (0.55 oz/sqft Al-Zn coating) |
| Finish | Mill-finish acrylic clear coat — no paint |
| Color | Galvalume (natural silver) |
| Length | Custom cut to your linear footage — no waste |
| Warranty | 25-year substrate warranty (industry-standard AZ55 Galvalume) |
| Mill | USA-milled — Steel Dynamics, Inc. & US Steel |
| Item # | RP-GALV-26 |
What is R-Panel (PBR Panel)?
R-Panel and PBR Panel are the same profile — PBR (Purlin-Bearing R-Panel) is the modern industry name for what’s commonly still called R-Panel in the field. 36″ cover width, 1¼” major ribs spaced 12″ on-center, and a purlin-bearing leg so the panel works as roofing OR siding. Our R-Panel is 26-gauge Grade 80 steel — the contractor standard for residential roofs, carports, barns, barndominiums, and commercial roofs across Houston and Southeast Texas.
Why Galvalume (bare) is the workhorse choice
Galvalume is the panel contractors reach for when the job needs to hold up but doesn’t need to match a color palette. The 55% aluminum / 43.4% zinc / 1.6% silicon coating self-protects at cut edges and weathers to an even warm silver. No paint means no chipping, no fading, no color match worries on future repairs. It’s the lowest-cost panel we stock and the highest-volume panel we cut — used on pole barns, ag buildings, equipment sheds, carports, and utility roofs across Harris, Fort Bend, Brazoria, and Galveston counties.
Same-day cut and Houston pickup
We cut to your exact linear footage on our shear while you wait. Pickup at 8122 Hillsboro St, Houston TX 77029 — open contractor hours. Delivery available across the Houston metro and Southeast Texas (free on orders $1,500+). Call (281) 902-7619 with your footage and we’ll have it cut and on the rack when you arrive.
What else you need
Most Galvalume R-Panel jobs need #12 self-drilling roofing screws with bonded EPDM washers (mill-finish or color-matched if you’re trimming with painted panels), foam closures at eave and ridge, ridge cap trim, gable trim, eave trim, and pipe boots for any penetrations. Tell us your roof dimensions and we’ll spec the full accessory package with your panels.
FAQ
What’s the difference between 26-gauge and 29-gauge?
26-gauge is 0.0185″ thick — the contractor standard for Houston roofing. 29-gauge is thinner (~0.0142″) and used on cheap residential jobs. For Gulf Coast hail and wind, 26-gauge is the floor.
What does AZ55 mean?
Galvalume is a corrosion-resistant coating bonded to the steel: 55% aluminum + 43.4% zinc + 1.6% silicon. AZ55 = 0.55 ounces of coating per square foot, the higher-coverage spec used on bare panels (the painted colors use AZ50, where the paint adds extra protection). Both meet ASTM A792.
Is “same-day cut” really same-day?
For orders up to about 2,000 linear feet of stock colors, yes — call with your footage, drive over, we cut while you load. Bigger orders may need 24 hours to schedule the shear clean.
Do you deliver?
Yes. Pickup is free at our Houston yard; delivery is available across the Houston metro and most of Southeast Texas (free on orders $1,500+). Call (281) 902-7619 for a delivery quote.
¿Cortan la lámina a la medida?
Sí. Cortamos lámina R-Panel galvalume calibre 26 a la medida exacta en pies enteros. Pedido hoy, recoger hoy en 8122 Hillsboro St, Houston. Llame al (281) 902-7619 para precios.
Order online, walk in, or call (281) 902-7619 to spec your job — gauge, footage, screws, closures, trim.

























