SDI Member · ANSI/SDI compliant
Steel purlin supplier in Orlando
High-strength C & Z steel purlins in Orlando for efficient roof and wall support.
Local Steel Purlins supply for Orlando
General contractors and steel erectors in Orlando rely on Miami Metal Deck for Steel Purlins on projects across Orange County and the Central Florida region. Orders for Orlando ship from our Miami Gardens facility, with 1-day service to major Florida cities and delivery scheduled around your erection sequence.
For inland Orlando projects, G60 galvanized is often sufficient for enclosed structures, while G90 remains available where the specifications call for more corrosion protection. Projects in Orlando follow the Florida Building Code wind-load requirements, so we work directly from your engineer's deck schedule, gauges and attachment details.
Product guide
Product specifications for your Orlando project
Compare profiles, dimensions, material options and applications to prepare your order. Select a product below to explore its technical details.
C Purlin
C purlin is a popular choice for roof and wall work, giving high strength at low weight. The C-shaped profile is available from 12 GA to 20 GA across several depths and gauges, meets ANSI standards, and carries galvanized G60 or G90 finishes.
Dimensions and profile
| Property | Dimension |
|---|---|
| Commercial Name | C Purlin |
| Gauge | 12 to 20 |
| Thickness | 0.039" to 0.094" |
| Weights | 1.2 to 6.78 lbs/ft |
| Size Range | C4x2 to C12x3 |
| Web Depths | 4 to 12 inches |
| Flanges | 2 to 3 inches |
The C purlin line covers C4x2 to C12x3, with 4 to 12 inch web depths. Gauges 12 through 20 (thickness 0.039" to 0.094") bring weights of 1.2 to 6.78 lbs/ft, and flanges of 2 to 3 inches come with lip dimensions up to 0.787 inches.
Sizes, thicknesses and weights
| Purlin Size | Thickness | Weight (lbs/ft) | Gauge | Web | Flange | Lip |
|---|---|---|---|---|---|---|
| C12x3-12 | 0.094 | 6.78 | 12 | 12 | 3 | 0.787 |
| C12x3-14 | 0.075 | 5.4 | 14 | 12 | 3 | 0.787 |
| C10x3-12 | 0.094 | 5.48 | 12 | 10 | 3 | 0.787 |
| C10x3-14 | 0.075 | 4.37 | 14 | 10 | 3 | 0.709 |
| C8x3-12 | 0.094 | 4.87 | 12 | 8 | 3 | 0.787 |
| C8x3-14 | 0.075 | 3.86 | 14 | 8 | 3 | 0.709 |
| C8x3-16 | 0.059 | 3.02 | 16 | 8 | 3 | 0.591 |
| C6x2.5-12 | 0.094 | 3.83 | 12 | 6 | 2.5 | 0.709 |
| C6x2.5-14 | 0.075 | 3.03 | 14 | 6 | 2.5 | 0.669 |
| C6x2.5-16 | 0.059 | 2.41 | 16 | 6 | 2.5 | 0.630 |
| C6x2.5-18 | 0.047 | 1.94 | 18 | 6 | 2.5 | 0.591 |
| C5x2-12 | 0.094 | 3.19 | 12 | 5 | 2 | 0.630 |
| C5x2-14 | 0.075 | 2.5 | 14 | 5 | 2 | 0.630 |
| C5x2-16 | 0.059 | 1.99 | 16 | 5 | 2 | 0.591 |
| C5x2-18 | 0.047 | 1.59 | 18 | 5 | 2 | 0.591 |
| C5x2-20 | 0.039 | 1.35 | 20 | 5 | 2 | 0.591 |
| C4x2-20 | 0.039 | 1.20 | 20 | 4 | 2 | 0.472 |
| C4x2-18 | 0.047 | 1.41 | 18 | 4 | 2 | 0.472 |
| C4x2-16 | 0.059 | 1.76 | 16 | 4 | 2 | 0.512 |
| C4x2-14 | 0.075 | 2.21 | 14 | 4 | 2 | 0.512 |
| C4x2-12 | 0.094 | 2.82 | 12 | 4 | 2 | 0.512 |
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. |
| 20 | 0.039 | Up to 1.35 lbs/ft | Light framing and small spans. |
Gauges 12 through 20 let you match the purlin to the load and span. The heavier gauges (12 and 14) suit large structural applications and heavy roofing loads, while 18 and 20 gauge fit lighter framing and short spans where weight and cost matter most.
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. |
Finish options for C purlins are galvanized (G60 and G90) and prime-painted. G60 gives corrosion resistance in general environments. G90 provides a heavier zinc coating for coastal or high-humidity use. Prime-painted adds a protective base coat for projects needing extra coatings.
Material and finish options
Our C purlins use 55 KSI high-strength steel. Finishes include corrosion-resistant galvanizing that meets ANSI standards, paint for a tailored appearance, and bare steel for custom applications, each designed to boost durability and performance on Orlando projects.
Custom lengths
We cut to the length your job calls for, from 6′-0″ on smaller projects to 40′-0″ spans on larger builds. Custom lengths for Orlando projects help the pieces fit properly and keep waste low.
C Purlin features
With a high strength-to-weight ratio, quick installation, and corrosion-resistant coatings, our C purlins fit industrial buildings, solar panels, agricultural structures, and commercial roof and wall systems. They are a practical pick for Orlando projects.
High Strength-to-Weight Ratio
Carries heavy loads yet stays light, which lowers structural dead load and makes handling and installation easier.
Easy and Fast Installation
A lightweight, symmetrical section cuts labor hours and simplifies erection in roof and wall systems.
Galvanized or Prime-Painted Finish
Choose G60 or G90 galvanized, or prime-painted, for better durability and corrosion resistance.
Ideal for Custom Applications
Works across industrial buildings, solar panels, agricultural structures, and many other commercial structural uses.
Compliance with SDI Standards
Conforms to Steel Deck Institute and ANSI guidelines for quality and code compliance.
Versatile Design Options
Sizes from C4x2 to C12x3 and gauges 12 to 20 cover a wide spread of structural needs and loads.
Installation and connections
Installation practices
- C purlins should be installed perpendicular to the primary structural supports.
- Anchor them at every support by bolt, weld, or self-drilling screw.
- Purlins that overlap are secured with bolts or screws at 12" o.c.
Fasteners and attachments
- Connect to primary frames with ½" diameter bolts.
- Fasten along supports with #12 self-drilling screws at 6" o.c., and at overlaps with the same screws at 12" o.c.
- Secure overlapping joints using #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
Roof and Wall Structural Framing
Commercial and industrial buildings use C purlins as solid support for roofing and wall cladding, in vented and non-vented structures alike.
Mezzanine and Racking Support
Strong enough for mezzanine floors and industrial racking, they are a dependable option for warehouses and factories.
Standards and product documentation
SDI (Steel Deck Institute) specifications govern the C purlin, so design and performance meet a high standard.
C Purlin questions
What is a C purlin, and what is it used for?
It is a cold-formed steel member with a 'C' shaped section. Its main job is structural support in the roofs and walls of industrial, commercial, and agricultural buildings.
How does a C purlin differ from a Z purlin?
The C purlin has a symmetrical 'C' section that gives strength and stability, and it works best in simple-span applications. A Z purlin has a 'Z' section that lets pieces overlap, which adds rigidity on longer continuous spans.
Which gauges and materials do C purlins come in?
Gauges 12 to 20 are available. They are made from galvanized steel (G60/G90) or prime-painted steel, depending on what the project requires.
What are the benefits of C purlins in Orlando?
They offer high structural strength in a light profile, quick installation thanks to a standardized design, and flexibility across building types. Galvanizing adds corrosion resistance, and durability keeps maintenance and cost down.
Are custom C purlins available?
Yes. We make custom C purlins to order, with length (6' to 40'), gauge, and finish set to your project specifications.
Z Purlin
Z purlin, widely used in roof and wall applications, gives superior load-bearing capacity and an overlapping design for extended spans. Gauges 12–18 are available. It meets ANSI standards and comes with G60 and G90 galvanized finishes.
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 |
Sizes range from Z6x2.5 to Z12x3, and web depths measure 6 to 12 inches. Gauges 12 through 18 (0.047" to 0.094" thick) weigh 1.94 to 6.78 lbs/ft. Flange widths are 2.5 to 3 inches, with lip dimensions up to 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. |
Gauges 12 through 18 allow you to match load and span needs. Use the heavier gauges (12 and 14) for large structural applications. Gauges 16 and 18 are for medium to light-duty work in commercial and agricultural structures.
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. |
G60 and G90 galvanized and prime-painted finishes are available for Z purlins. G60 gives corrosion resistance for general environments. G90 offers a thicker zinc coating suited to coastal or high-humidity applications. Prime-painted supplies a protective base coat for projects requiring 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
Lengths run from 6′-0″ for smaller projects to as much as 40′-0″ for larger construction, and we cut every one precisely and efficiently. Custom lengths give an optimal fit with minimal waste for Orlando contractors.
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
Engineered for higher structural loads, with an overlapping design that provides continuous-span efficiency.
Overlapping for Extended Spans
Overlapping and interlocking at intermediate supports, Z purlins behave like a continuous beam and are more efficient over longer distances.
Corrosion-Resistant Finishes
Durable G60 and G90 galvanized or prime-painted finishes resist harsh environmental conditions.
Cost-Effective
Fewer intermediate supports and longer spans save material and labor on large-scale roofing and wall systems.
Compliance with SDI Standards
Guidelines from the Steel Deck Institute and ANSI are followed, ensuring quality and code compliance.
Versatile Applications
Sizes Z6x2.5 to Z12x3 and gauges 12–18 support commercial, industrial, and agricultural structures.
Installation and connections
Installation practices
- Install Z Purlins perpendicular to the primary structural supports.
- Anchor at each support using bolts, welds, or self-drilling screws.
- Overlap and interlock purlins at intermediate supports, secured at 12" o.c.
Fasteners and attachments
- Connect to primary frames with ½" diameter bolts.
- Fasten along supports with #12 self-drilling screws at 6" o.c., and at overlaps with the same screws at 12" o.c.
- Secure overlapping joints using #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
Z purlins fit large-scale commercial and industrial roofing that needs continuous spans and fewer intermediate supports, and overlapping boosts structural efficiency over long roof runs.
Continuous Wall Cladding Support
Metal cladding on industrial, commercial, and agricultural buildings is supported by continuous Z purlin wall girts, with the interlocking profile providing 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?
A Z purlin is a cold-formed steel structural member whose section resembles the letter 'Z'. It is used chiefly as roof purlins and wall girts in commercial, industrial, and agricultural metal building systems.
How are Z purlins better than C purlins?
Overlapping and interlocking at intermediate supports gives Z purlins continuous-beam behavior. Over longer spans, this brings greater structural efficiency and load capacity than simple-span C purlins.
What are the available sizes and gauges for Z purlins?
Sizes go from Z6x2.5 to Z12x3, in gauges 12 through 18. Web depths are 6 to 12 inches, and flanges are 2.5 to 3 inches.
What finish options exist for Z purlins?
You can choose G60 or G90 galvanized finishes for corrosion resistance, or prime-painted finishes for projects requiring additional coatings.
Can Orlando projects get customized Z purlins?
Yes. Custom Z purlins are offered with length (6' to 40'), gauge, and finish tailored to specific project specifications.
Ordering made simple
Steel Purlins for Orlando construction
Start with your plans or a takeoff. We review the profile, gauge, quantities and lengths, help with shop drawings when you need them, and come back with pricing and a delivery plan for Orlando.
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 Orlando, 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
Do you supply steel purlins in Orlando?
Yes. We deliver C and Z purlins to Orlando with 1-day delivery available. Contact us at 305-760-2575.
What is the difference between C and Z purlins?
Z purlins overlap and interlock at supports for continuous-span efficiency. C purlins suit simple-span applications where continuity is not required.
Why are steel purlins used?
They support roof and wall sheeting, moving load from the cladding into the main structural frame. Purlins run horizontally across the rafters or columns of a building.
What are the usual steel purlin types for Orlando buildings?
C and Z Purlins are the most common. Simple, non-overlapping spans suit C Purlins, and Z Purlins overlap and interlock for continuous spans with greater structural efficiency over long distances.
What is the main difference between C and Z Purlins?
Continuous beam behavior is more efficient with Z purlins, because they overlap and interlock at intermediate supports. C purlins serve simple spans, where continuity is not needed.
Can one purlin type serve both roofs and walls?
Yes. Both C and Z purlins serve as roof purlins that support roof panels and as wall girts that support wall cladding, which makes them flexible parts of metal building systems.
Which coatings come on purlins?
Purlins are all available in galvanized steel, with G90 or G60 coatings for corrosion resistance and lasting performance in commercial, industrial, and agricultural settings.