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Type A, B, & N Roof Deck

Steel roof decks are corrugated metal panels that serve as the structural base for roofing systems in commercial and industrial buildings. They are installed over steel joists or beams, creating a platform for insulation, waterproofing membranes, and other roofing materials.

We offer various types (Type B, Type N, and Type A ) of roof decking with different depths and strengths. Triple-S Steel provides various steel deck options, accessories, and services to meet the needs of construction projects.

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Type B Roof Deck 

Type B roof deck, or wide rib deck, is a versatile choice for steel roofing in new construction projects. At 1.5 inches deep, it provides a balance of strength and economy, especially when combined with rigid insulation. This deck is manufactured from A653 steel and offers features like nested and interlocking side laps for enhanced stability.

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Type N Roof Deck

Type N roof deck, also called deep rib decks, are engineered for exceptional strength and spanning capabilities. They are ideal for projects with wide support spacing or heavy roof loads.

  • Depth: Approximately 3 inches
  • Applications: Auditoriums, gymnasiums, and warehouses
  • Benefits: Reduced number of support beams, cost savings, and design flexibility

With its design and capability, a Type N roof deck offers a reliable solution for demanding construction projects. It is a popular choice for architects and engineers seeking a combination of performance, economy, and aesthetic appeal.

Type A Roof Deck

The shallowest and least efficient steel deck option is a type A roof deck or narrow rib deck. It is primarily used for repairs or re-roofing projects where matching existing deck profiles is necessary.

Contact our team to learn more about our offerings, from a Type B roof deck to Type N. You can also request a quote or inquire about our services.

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Triple-S Steel Supply Co. is a true "One Stop Shop" for the small steel fabricator. Over 200,000 tons of stock inventory is available for sale every day at our facilities. Explore our full list of product offerings by viewing our online catalog.

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Our Commitment To You

For more than 60 years, we've stayed committed to fair trade and long-term thinking, providing great products and unwavering service. Our team's flexibility and entrepreneurial spirit ensure tailored solutions that create opportunities for your success within our Triple-S Steel® family.

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