SDI Member · ANSI/SDI compliant
Z purlins in Melbourne
High-strength Z steel purlins in Melbourne for continuous-span roof and wall support with enhanced lateral stability.
Supplying Z Purlins in Melbourne
Miami Metal Deck supplies Z Purlins to contractors, erectors and fabricators building in Melbourne and across Brevard County and the Space & Treasure Coasts region. Deliveries to Melbourne leave our Miami Gardens facility on a schedule set with your team, with 1-day service available to major Florida cities.
Salt air and humidity near the coast in Melbourne favor heavier zinc coatings such as G90 galvanized. We match the finish to what your drawings call for. We supply to the gauges, lengths and finishes on your approved drawings, which are designed to the Florida Building Code requirements that apply in Brevard County.
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.
Z Purlin
For roof and wall applications, Z purlin offers superior load-bearing capacity, and its overlapping design carries longer spans. Gauges 12–18 are available, the product meets ANSI standards, and G60 and G90 galvanized finishes are offered.
Dimensions and profile
| Property | Dimension |
|---|---|
| Commercial Name | Z Purlin |
| Gauge | 12 to 18 |
| Thickness | 0.047" to 0.094" |
| Weights | 1.94 to 6.78 lbs/ft |
| Size Range | Z6x2.5 to Z12x3 |
| Web Depths | 6 to 12 inches |
| Flanges | 2.5 to 3 inches |
Z purlins cover Z6x2.5 to Z12x3, with web depths of 6 to 12 inches. Gauges 12 through 18 (thickness 0.047" to 0.094") carry weights of 1.94 to 6.78 lbs/ft. Flanges are 2.5 to 3 inches, and lips reach 0.787 inches.
Sizes, thicknesses and weights
| Purlin Size | Thickness | Weight (lbs/ft) | Gauge | Web | Flange | Lip |
|---|---|---|---|---|---|---|
| Z12x3-12 | 0.094 | 6.78 | 12 | 12 | 3 | 0.787 |
| Z12x3-14 | 0.075 | 5.4 | 14 | 12 | 3 | 0.787 |
| Z10x3-12 | 0.094 | 5.48 | 12 | 10 | 3 | 0.787 |
| Z10x3-14 | 0.075 | 4.37 | 14 | 10 | 3 | 0.709 |
| Z8x3-12 | 0.094 | 4.87 | 12 | 8 | 3 | 0.787 |
| Z8x3-14 | 0.075 | 3.86 | 14 | 8 | 3 | 0.709 |
| Z8x3-16 | 0.059 | 3.02 | 16 | 8 | 3 | 0.591 |
| Z6x2.5-12 | 0.094 | 3.83 | 12 | 6 | 2.5 | 0.709 |
| Z6x2.5-14 | 0.075 | 3.03 | 14 | 6 | 2.5 | 0.669 |
| Z6x2.5-16 | 0.059 | 2.41 | 16 | 6 | 2.5 | 0.630 |
| Z6x2.5-18 | 0.047 | 1.94 | 18 | 6 | 2.5 | 0.591 |
Gauges and thicknesses
| Gauge | Bare steel thickness (in) | Weight (lbs/ft) | Typical applications |
|---|---|---|---|
| 12 | 0.094 | Up to 6.78 lbs/ft | Heavy structural applications, large spans. |
| 14 | 0.075 | Up to 5.4 lbs/ft | Standard commercial structural support. |
| 16 | 0.059 | Up to 3.02 lbs/ft | Medium-duty roof and wall support. |
| 18 | 0.047 | Up to 1.94 lbs/ft | Light-duty applications and agricultural buildings. |
Z purlins come in gauges 12 through 18 to suit different loads and spans. Gauges 12 and 14 are best for big structural applications, and gauges 16 and 18 handle medium to light-duty work in commercial and agricultural structures for Melbourne builders.
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. |
Galvanized (G60 and G90) and prime-painted finishes are available on Z purlins. G60 resists corrosion in general environments. G90 has an enhanced zinc coating for coastal or high-humidity applications. A prime-painted Z purlin carries a protective base coat for projects that need additional coatings.
Material and finish options
Each Z purlin is rolled from high-strength 55 KSI steel. Galvanized finishes meeting ANSI standards provide corrosion resistance, painted options offer tailored aesthetics, and bare steel serves custom applications. Every finish is designed to enhance durability and performance.
Custom lengths
Smaller projects can order precise lengths from 6′-0″, and larger constructions can order spans up to 40′-0″. We handle all dimensions with precision and efficiency, and custom lengths mean an optimal fit and minimal waste.
Z Purlin features
Superior load-bearing capacity, an overlapping design for extended spans, and corrosion-resistant finishes define our Z purlins. They work well in large-scale commercial, industrial, and agricultural roofing and wall systems.
Superior Load-Bearing Capacity
Built for higher structural loads, with an overlapping design that gives continuous-span efficiency.
Overlapping for Extended Spans
Z purlins overlap and interlock at intermediate supports, acting as a continuous beam for better structural efficiency over longer distances.
Corrosion-Resistant Finishes
G60 and G90 galvanized or prime-painted finishes stand up to harsh environmental conditions with excellent durability.
Cost-Effective
Longer spans and fewer intermediate supports lower material and labor costs on large roofing and wall systems.
Compliance with SDI Standards
Steel Deck Institute and ANSI guidelines are met, supporting quality and code compliance.
Versatile Applications
Sizes Z6x2.5 to Z12x3 and gauges 12–18 serve commercial, industrial, and agricultural structural needs.
Installation and connections
Installation practices
- Place Z Purlins perpendicular to the primary structural supports.
- Anchor at every support with bolts, welds, or self-drilling screws.
- At intermediate supports, overlap and interlock the purlins and fasten at 12" o.c.
Fasteners and attachments
- Secure purlins to primary frames using ½" diameter bolts.
- Use #12 self-drilling screws at 6" o.c. along supports; at overlaps, space them at 12" o.c.
- Lapped joints take #12 self-drilling 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
Roofing on large commercial and industrial buildings gains from continuous spans and fewer intermediate supports. Overlapping maximizes structural efficiency across long roof runs.
Continuous Wall Cladding Support
Z purlins act as continuous wall girts behind metal cladding in industrial, commercial, and agricultural buildings. The interlocking profile gives superior lateral stability.
Standards and product documentation
The Z purlin conforms to SDI (Steel Deck Institute) specifications, which keeps design and performance standards high.
Z Purlin questions
What is a Z purlin, and what is it for?
A Z purlin is a cold-formed steel member with a 'Z' shaped section. It is used mainly as roof purlins and wall girts in commercial, industrial, and agricultural metal building systems.
Why choose Z purlins over C purlins?
Z purlins overlap and interlock at intermediate supports, producing continuous-beam behavior. That gives greater structural efficiency and capacity on longer spans than simple-span C purlins.
What sizes and gauges do Z purlins come in?
Sizes run from Z6x2.5 to Z12x3 in gauges 12 through 18, with web depths of 6 to 12 inches and flanges of 2.5 to 3 inches.
Which finishes are offered on Z purlins in Melbourne?
G60 and G90 galvanized finishes provide corrosion resistance, and prime-painted finishes serve projects that need additional coatings.
Can Z purlins be made to custom specifications?
Yes. Custom Z purlins are available with length (6' to 40'), gauge, and finish tailored to your project.
Planning your order
Z Purlins 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 drawings for a quoteWhat to include in your quote request
- The profile, gauge and finish shown in your specifications.
- Quantities and lengths, or the drawings we can take them off from.
- The Melbourne job site address, your target delivery date and any access limits.
- Load tables, attachment details or other documents your engineer specified.
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
Do you supply Z purlins in Melbourne?
Yes. We deliver Z purlins to Melbourne with 1-day service available. Call 305-760-2575 for pricing.
When should I use Z instead of C purlins?
Z purlins are preferred for continuous spans where they can overlap and interlock at supports, providing greater load efficiency over longer distances.