SDI Member · ANSI/SDI compliant
Steel purlin supplier in Hialeah
High-strength C & Z steel purlins in Hialeah for efficient roof and wall support.

Steel Purlins for Hialeah job sites
Miami Metal Deck supplies Steel Purlins to contractors, erectors and fabricators building in Hialeah and across Miami-Dade County and the South Florida region. Hialeah is close to our Miami Gardens facility, so stock items are available for same-day pickup and same-day delivery within South Florida.
Coastal conditions around Hialeah make corrosion protection a priority, and G90 galvanized steel is a common choice there. Our team checks the specified finish before we quote. Projects in Hialeah are designed to the Florida Building Code's High-Velocity Hurricane Zone (HVHZ) provisions for Miami-Dade County, so we work directly from your engineer's deck schedule and attachment details.
Product guide
Product specifications for your Hialeah 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 |
C purlins span from C4x2 up to C12x3, with web depths between 4 and 12 inches. Gauges 12 to 20 correspond to thicknesses of 0.039" to 0.094" and weights from 1.2 to 6.78 lbs/ft. Flanges measure 2 to 3 inches, with lips 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 to 20 give you room to balance load against span. Use the heavier 12 and 14 gauges for big structural applications and heavy roofing loads. Where weight and cost efficiency come first, such as light framing and small spans, the lighter 18 and 20 gauges are the fit.
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
We roll our C purlins from 55 KSI high-strength steel and offer three choices: galvanized coatings that meet ANSI standards for corrosion resistance, painted finishes for a tailored look, and bare steel for custom uses. Each coating is chosen to improve durability and performance.
Custom lengths
Lengths start at 6′-0″ for smaller jobs and stretch to 40′-0″ for large construction. We cut each piece precisely, so the purlins fit well and little material is wasted on Hialeah job sites.
C Purlin features
High strength-to-weight ratio, easy installation, and corrosion-resistant finishes make our C purlins a good fit for industrial buildings, solar panels, agricultural structures, and commercial roofing and wall systems.
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
- Place C purlins perpendicular to primary structural supports.
- At each support, anchor with bolts, welds, or self-drilling screws.
- Overlapped purlins are secured with bolts or screws at 12" o.c.
Fasteners and attachments
- ½" Diameter Bolts for secure connection to primary frames
- #12 Self-Drilling Screws at 6" o.c. along supports and 12" o.c. at overlaps
- Overlapping joints fastened with #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
A strong choice for commercial and industrial buildings, supporting roofing and wall cladding. Works in both vented and non-vented structures.

Mezzanine and Racking Support
Its strength suits mezzanine floors and industrial racking. Warehouses and factories that need durable structural support benefit most.
Standards and product documentation
This C purlin is built to SDI (Steel Deck Institute) specifications, which sets a high bar for design and performance.
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 Hialeah?
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 |
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. |
Load and span requirements guide the choice among gauges 12 through 18. Heavier gauges (12 and 14) are ideal for large structural applications. Lighter gauges (16 and 18) suit medium to light-duty applications 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
We offer Z purlins in high-strength 55 KSI steel. You can select corrosion-resistant galvanized finishes that meet ANSI standards, painted options for tailored aesthetics, or bare steel for custom applications, all intended to improve durability and performance in Hialeah and beyond.
Custom lengths
From 6′-0″ lengths on smaller projects to long spans of up to 40′-0″ on larger ones, we supply every dimension with precision and efficiency. Our custom length service gives an optimal fit and minimal waste.
Z Purlin features
Our Z purlins combine superior load-bearing capacity with an overlapping design for extended spans and corrosion-resistant finishes, making them ideal for large-scale commercial, industrial, and agricultural roofing and wall systems in Hialeah.
Superior Load-Bearing Capacity
Handles higher structural loads, and the overlapping design delivers continuous-span structural efficiency.
Overlapping for Extended Spans
At intermediate supports, Z purlins overlap and interlock to form continuous-beam behavior, giving greater efficiency across longer distances.
Corrosion-Resistant Finishes
Choose G60 or G90 galvanized, or prime-painted, for excellent durability in harsh environmental conditions.
Cost-Effective
Material and labor costs drop on large roofing and wall systems because spans are longer and intermediate supports fewer.
Compliance with SDI Standards
Quality and code compliance come from meeting Steel Deck Institute and ANSI guidelines.
Versatile Applications
With sizes from Z6x2.5 to Z12x3 and gauges 12–18, Z purlins serve commercial, industrial, and agricultural structural applications.
Installation and connections
Installation practices
- Z Purlins go perpendicular to primary structural supports.
- Each support gets an anchor of bolts, welds, or self-drilling screws.
- Overlap and interlock the purlins at intermediate supports and secure at 12" o.c.
Fasteners and attachments
- ½" Diameter Bolts for secure connection to primary frames
- #12 Self-Drilling Screws at 6" o.c. along supports and 12" o.c. at overlaps
- Overlapping joints fastened with #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 used for?
A Z purlin is a cold-formed steel structural member shaped like the letter 'Z'. Roof purlins and wall girts in commercial, industrial, and agricultural metal buildings are its main uses.
What does a Z purlin do better than a C purlin?
It overlaps and interlocks at intermediate supports, which creates continuous-beam behavior. Compared with simple-span C purlins, that means greater efficiency and load capacity across longer spans.
Which sizes and gauges are available for Z purlins?
They run from Z6x2.5 to Z12x3 in gauges 12 through 18, with web depths from 6 to 12 inches and flanges from 2.5 to 3 inches.
What finishes can I get on Z purlins?
G60 and G90 galvanized finishes protect against corrosion, and prime-painted finishes are offered for projects needing additional coatings.
Do you offer custom Z purlins in Hialeah?
Yes. We make custom Z purlins to your length (6' to 40'), gauge, and finish, in line with project specifications.
Before you order
Order Steel Purlins for your Hialeah project
Share your drawings or a material list and our team will check quantities, profiles and cut lengths. We also prepare takeoffs and shop drawings, then send pricing and delivery options for the Hialeah job site.
Start your quoteWhat we need to quote your project
- Your Hialeah project address and when you need material on site.
- Drawings or a material list with quantities and cut lengths.
- Specified profile, dimensions, gauge and finish.
- Connection details, load tables and any 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 Hialeah?
Yes. We deliver C and Z purlins to Hialeah 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.
What do steel purlins do?
Steel purlins hold up roof and wall sheeting and pass loads from the cladding to the main structural frame. They run horizontally across a building's rafters or columns.
Which steel purlins are most common?
C and Z Purlins. C Purlins fit simple, non-overlapping spans, whereas Z Purlins overlap and interlock for continuous spans, which makes them more structurally efficient over long distances.
How do C and Z Purlins differ most?
Z purlins overlap and interlock at intermediate supports for more efficient continuous beam behavior. C purlins are for simple-span applications where that continuity is unnecessary.
Do purlins support both roofs and walls?
Yes. C and Z purlins work as roof purlins (holding roof panels) and as wall girts (holding wall cladding), so they are versatile in metal building systems.
What materials and coatings are offered?
All purlins come in galvanized steel with G90 or G60 coatings for corrosion resistance, performing well over the long term in commercial, industrial, and agricultural environments.
