SDI Member · ANSI/SDI compliant
3" Type N metal deck supplier in Melbourne
Long-span Type N roof deck in Melbourne for warehouses, industrial facilities, and large commercial roof systems.
Product guide
Product specifications for your Melbourne project
Compare profiles, dimensions, material options and applications to prepare your order. Select a product below to explore its technical details.
3" Type N Roof Deck
3" Type N Metal deck is widely used in roof applications due to its long-span capabilities and structural strength. The Type N profile is 3 inches deep and comes in gauges ranging from 22 GA to 16 GA, providing flexibility for various roofing projects. This deck complies with SDI and ANSI standards and is available in galvanized finishes like G60 and G90.
Dimensions and profile
| Property | Dimension |
|---|---|
| Profile Depth | 3 inches |
| Coverage Width | 24 inches |
| Rib Spacing | 8 inches (center to center) |
| Rib Height | 3 inches |
The Type N Roof Deck is available in a range of gauges, including 22, 20, 18, and 16. These gauges provide options for varying thicknesses and load capacities to meet specific roofing project needs. Lighter gauges (22 and 20) are suitable for short spans and lighter loads, offering cost efficiency. Heavier gauges (18 and 16) deliver enhanced strength and durability, ideal for long spans and heavy-duty roofing applications.
Gauges and thicknesses
| Gauge | Bare steel thickness (in) | Weight (lbs/sq ft) | Typical applications |
|---|---|---|---|
| 22 | 0.0295 | 1.8 | Light duty roofs. |
| 20 | 0.0358 | 2.2 | Standard commercial roofs. |
| 18 | 0.0474 | 2.9 | Heavy load areas. |
| 16 | 0.0598 | 3.7 | Long spans, high loads. |
The Type N deck is available in a range of gauges, including 22, 20, 18, and 16. These gauges offer varying thicknesses and load capacities to suit specific project needs. Thinner gauges (22 and 20) are lightweight and cost-effective, ideal for shorter spans and lighter loads. Thicker gauges (18 and 16) provide enhanced structural strength and can support longer spans and heavier loads, making them perfect for demanding applications.
Finishes and coatings
| Finish | Details |
|---|---|
| Galvanized G60 | Zinc coating of 0.6 oz/ft². Recommended for general environments. |
| Galvanized G90 | Zinc coating of 0.9 oz/ft². Ideal for highly corrosive environments. |
| Prime-Painted | Provides a base coat for additional protection or paint adhesion. |
| Bare Steel | Unfinished; typically for indoor use or controlled environments. |
To ensure durability and long-term performance, the Type N deck comes in multiple finish options, including galvanized (G60 and G90) and prime-painted. Galvanized finishes provide excellent corrosion resistance, with G90 offering higher zinc coating for environments with greater exposure to moisture or chemicals. The prime-painted option adds a protective base coat, making it suitable for projects requiring additional layers of paint or coatings.
Material and finish options
Choose from our high-strength 80 KSI steel Type N 3" Roof Deck, available with a corrosion-resistant galvanized finish meeting ANSI standards, prime-painted finishes for additional protection, or bare steel for specialized applications. Each finish is engineered to ensure durability and reliable performance in demanding roofing environments.
Custom lengths
Whether you need precise deck lengths ranging from 6′-0″ for smaller roofing projects or extended spans up to 40′-0″ for large-scale constructions, the 3" Type N Roof Deck delivers with accuracy and efficiency. Our custom length service ensures an optimal fit, reduced waste, and streamlined installation.
3" Type N Roof Deck features
Elevate your projects with our 3" Type N roof deck, offering superior strength, fire-rated performance, and long-span efficiency. Ideal for large-scale commercial roofing and sustainable building applications.
Deep Rib Profile for High Strength
The 3-inch rib depth provides superior strength, making it ideal for longer spans and heavy roofing loads.
Wide Coverage Efficiency
With a standard 24-inch coverage, it reduces material usage and simplifies installation, perfect for large-scale projects.
Corrosion-Resistant Finish Options
Available in G60 or G90 galvanized finishes for excellent durability and resistance to harsh environmental conditions.
Fire and Acoustic Performance
Meets fire-rating standards when used in approved assemblies and supports insulation for soundproofing and thermal efficiency.
Compliance with SDI Standards
Meets Steel Deck Institute (SDI) and ANSI guidelines, ensuring quality and code compliance.
Long Span Capability
Available in 22, 20, 18, and 16 gauges, allowing customization to meet specific load-bearing requirements and project demands.
Installation and connections
Installation practices
- Install the deck perpendicular to the supports.
- Weld or screw the deck at each support with puddle welds or TEK screws.
- Overlap sidelaps and secure with screws at 12" o.c. (on center).
Fasteners and attachments
- 5/8" Diameter Puddle Welds
- #12 or #14 TEK screws at 6" o.c. on edges, and 12" o.c. for sidelaps
- Sidelaps attached using #12 TEK screws at 12" o.c.
Confirm the profile, gauge, span, loads and connections against your project drawings and the applicable product load tables before ordering.
Applications
Long-Span Roofing Systems
Type N is perfect for large-scale commercial and industrial roofing systems requiring long spans and fewer supports. Its 3-inch rib profile ensures exceptional strength and efficiency for expansive roof designs.
Fire-Rated Roof Assemblies
Type N is commonly used in fire-rated roof systems, offering compatibility with insulation and fireproofing materials. It ensures safety and performance for demanding commercial and industrial applications.
Standards and product documentation
The 3" Type N deck complies with SDI (Steel Deck Institute) specifications, ensuring high standards for design and performance. SDI: The 3" Type N deck complies with SDI specifications, ensuring high standards for design and performance.
3" Type N Roof Deck questions
What is the 3" Type N Roof Deck used for?
The Type N Roof Deck is designed for long-span roofing applications, providing structural support for commercial and industrial roof systems.
What are the span capabilities of the Type N Roof Deck?
Depending on the gauge, the Type N Deck can span up to 16 feet, reducing the need for intermediate supports.
What gauges are available for the 3" Type N Roof Deck?
It is available in gauges ranging from 16 GA to 22 GA, offering options for different load and span requirements.
Is the Type N Roof Deck compatible with fire-rated roofing systems?
Yes, the Type N Deck supports fire-rated assemblies and accommodates insulation and fireproofing materials for enhanced safety.
What finishes are available for the Type N Roof Deck?
It comes in galvanized finishes (G60 or G90) for corrosion resistance and prime-painted options for additional protection.
Planning your order
3" Type N Metal Deck supply for Melbourne
Send your project drawings or material list so our team can review quantities, profile requirements and cut lengths. We can help with takeoffs and shop drawings, then confirm pricing and delivery options for your Melbourne project.
Send your project requirementsWhat to include in your quote request
- Product profile or series, dimensions, gauge and specified finish.
- Required quantities, sheet or member lengths, and project drawings.
- Project address in Melbourne, delivery date and site access requirements.
- Any specified load tables, connection details or supporting documentation.
How We Work
We Guide You Through the Process
From manufacturing to delivery, we ensure precision, efficiency, and compliance with industry standards.
Takeoff and Shop Drawings Services
We provide specialized takeoff services for accurate quotations and detailed shop drawings to produce optimized cutting lists for sheets, ensuring efficient execution and waste-free outcomes in your projects.
Manufacture
We manufacture metal decks to SDI and ANSI standards, ensuring strength, durability, and compliance. We provide custom lengths and high-precision fabrication for optimized performance in roof, floor, and form deck applications.
Swift Deliveries & Nationwide Reach
While based in South Florida, we serve clients nationwide, ensuring quality, efficiency, and timely deliveries across the U.S., reflecting our commitment to excellence without boundaries.
Frequently Asked Questions
Where can I buy Type N deck in Melbourne?
Miami Metal Deck supplies 3" Type N roof deck to Melbourne. Contact us at 305-760-2575 for pricing and delivery.
When should I use Type N instead of Type B?
Type N is ideal for long-span applications such as warehouses where fewer interior columns are preferred. Type B suits standard commercial and industrial spans.