About 3N Deck
3N Deck
3N Deck is a deeper-rib structural steel roof deck panel designed for longer spans and higher load applications in heavy commercial and industrial construction.
3N Deck is a structural steel deck panel with deeper ribs than standard 1.5" B-Deck, allowing it to span greater distances between supporting framing members without additional purlins or joists. It is used in applications where structural engineers specify a higher load capacity or longer unbraced span than standard B-Deck can provide.
Panel Data
3N Deck Technical Specifications
Roll-formed on-site in Sherman, TX and cut to your exact length.
| Coverage Width | 36 inches |
| Rib Height | Greater than 1.5" (3" nominal) |
| Standard Gauges | 22, 20, 18 gauge |
| Finish | Galvanized standard |
| Attachment | Puddle weld or mechanical fastener |
| Span | Longer unbraced spans vs standard B-Deck |
Where It Fits
Common Applications for 3N Deck
Contractors, builders, and owner-builders across North Texas and Southern Oklahoma use 3N Deck across a range of projects:
- Heavy commercial roofing with wide purlin spacing
- Industrial buildings with overhead equipment or crane loads
- Long-span roof systems where standard B-Deck is insufficient
- Applications requiring enhanced uplift resistance
- Re-roofing projects requiring structural upgrade
The Advantages
Why Choose 3N Deck
Greater span capability reduces the number of supporting purlins needed
Higher load capacity for heavy commercial and industrial applications
Standard SDI-compliant product for engineered commercial construction
Compatible with standard commercial roofing membrane systems
Color & Protection
Available Finishes & Coatings
Exact finish options vary by profile - call us to confirm what is available for 3N Deck.
Silicone-modified polyester, our standard painted finish. 40-year paint warranty, 17 stock colors.
Premium painted finish on our 24 gauge standing seam panels. 35-year warranty, superior color and chalk resistance.
Unpainted zinc-aluminum alloy coating. Available on structural deck and 24 gauge standing seam.
G-60 standard or G-90 special order on deck products; G90 on structural framing members.
Common Questions
3N Deck FAQs
Can you cut 3N Deck panels to length?
Yes. We roll-form most of our panel profiles on-site at our Sherman, TX facility and cut them to your specified length, so you get an exact fit with minimal waste and no freight damage. Most orders are ready in 1-5 business days.
What colors and finishes are available for 3N Deck?
Painted panels use Sherwin-Williams SMP with a 40-year paint warranty, in 17 stock colors: 14 standard and 3 premium. Our 24 gauge standing seam profiles are also available in Galvalume or PVDF (Kynar). Exact options vary by profile, so call us to confirm what is available for 3N Deck.
Do you deliver 3N Deck panels?
Yes - we deliver throughout North Texas and Southern Oklahoma. Delivery cost depends on your location and order size, and you are welcome to pick up at our Sherman, TX yard. Call (903) 465-6699 for a delivery quote.
Get an Estimate for 3N Deck
Tell us your panel length, quantity, color, and gauge. We roll-form most panels on-site and can have material ready in 1-5 business days.