Fiberglass Rectangular Purlin
Our fiberglass rectangular purlin boasts outstanding corrosion resistance and light weight. It serves as reliable structural support for roofing projects, industrial buildings and long-term outdoor constructions.
| Raw Material | Unsaturated Polyester Resin + E-glass Fiber |
|---|---|
| Production Process | Pultrusion |
| Opening Size | 50×30mm – 150×80mm |
| Load Capacity | Up to 50 kN/m² |
| Temperature Range | -40°C ~ +120°C |
Customizable Options
Tailored size, color, and surface finish to meet your project needs.
Factory-Direct Pricing
Save costs with direct production from our source factory.
Product Introduction
1.Fiberglass Rectangular Purlin Introduction
Fiberglass Rectangular Purlin is a high‑strength pultruded fiberglass structural purlin designed for versatile industrial construction and roofing applications. As a corrosion‑proof, lightweight, and long‑lasting alternative to steel purlins, our fiberglass rectangular purlin provides reliable structural strength, stability, and durability, making it the ideal solution for building roofing systems, workshop frameworks, greenhouse structures, and industrial construction projects worldwide.
2.Key Advantages of Our Fiberglass Rectangular Purlin
| Core Advantage | Detailed Description |
|---|---|
| High Structural Strength & Stability | Solid rectangular profile ensures excellent rigidity, wind resistance and load-bearing performance for medium to heavy-duty construction applications. |
| Superior Corrosion & Chemical Resistance | Resistant to acids, alkalis, saltwater, oil, and UV; no rust, no rot, no painting required, ideal for long‑term use in harsh industrial and coastal environments. |
| Excellent Safety & Non‑Conductivity | Non‑conductive, fire‑retardant optional, safe for use in power construction areas and high‑risk industrial zones. |
| Lightweight & Easy Installation | Much lighter than steel purlins, lowering transportation and labor costs; can be easily cut, drilled, and assembled on‑site. |
| Low Maintenance & Long Service Life | Minimal upkeep required, service life up to 20+ years, greatly reducing overall lifecycle costs. |
3.Wide Range of Industrial Applications
| Application Field | Application Details |
|---|---|
| Building Roofing & Framing | Workshop roofing supports, warehouse frame structures, and industrial building main purlins. |
| Marine & Offshore | Coastal building structures, seaside facility supports, and offshore construction framing components. |
| Chemical & Processing Plants | Corrosive environment building frames, workshop structural supports and factory construction parts. |
| Wastewater & Water Treatment | Sewage plant building structures, facility supports and environmental engineering construction components. |
| Agricultural & Municipal | Greenhouse frameworks, sunshade structures, and public construction supporting parts. |
4.Technical Specifications (Customizable)
| 파라미터 | Specification |
|---|---|
| 재질 | High-quality unsaturated polyester resin / vinyl ester resin reinforced with E-glass fibers |
| Production Process | Pultruded |
| Profile Size | Customizable according to engineering requirements |
| Fire resistance | 우수함 |
| Load capacity | 1.2 – 11.5 kN/m |
| Standard sizes | 50×30mm – 150×80mm |
| Maximum span | 2.1 – 7.8 m |
| Load data | 0.45 – 11.38 kN/m at 2.0 – 7.0 m span |
| Surface Texture | Smooth, gritted anti‑slip, concave |
| Color Options | Yellow, gray, green, orange, custom RAL colors |
| Mechanical Properties | High impact resistance, fatigue resistance, strong structural stability and wind load resistance |
| Certifications | ISO 9001, CE, ASTM standard |
5.Why Choose Our Fiberglass Rectangular Purlin?
As a professional manufacturer of FRP composite products, we produce reliable Fiberglass Rectangular Purlin that meets strict international quality standards. We support both standard and customized projects with professional technical support, stable production, and competitive pricing.
Contact us today to discuss your Fiberglass Rectangular Purlin needs and get a free quote!

Production Line
We produce Mingchi Fiberglass Rectangular Purlin on fully automated pultruded production lines, with stable and consistent process control throughout manufacturing. We implement strict quality inspections from raw material selection to final packaging, ensuring every purlin delivers uniform quality and dependable performance for all kinds of industrial and engineering construction applications.

01- Are you Trading Company or Manufacturing Factory?
We are both manufacturer trading and company. We have our own factory and we have better service ofoverseas customers. Welcome to send your inquiry!
02- I am interested in your products, could I get sample for free?
We can supply a few pieces FREE samples if we have some in stock, and you only need to pay the freight cost by yourself. Welcome to send your inquiry for FREE samples!
03- How about the Delivery time?
10-15days after receiving the deposit based on the MOQ. Normally, 30-35days to finish the order for a 20ft container. Welcome to ask for the detailed delivery time according to your order quantity!
04- How can you guarantee the product quality?
Our whole production lines and products have been certificated by IS09001:2015, and it’s been followed strictly. We also have the professional QC team, and each our package worker will be in charge of the final inspection according to the QC instruction before packing.
05- What is about the payment terms.
Basically, the payment terms areT/T,L/C at sight. Western Union, Paypal, Moneygram, Alipay Credit card are acceptableforsample order.
06- Can you do OEM for me?
We accept all OEM orders,just contact us and give me your design,we will offer you a reasonable price ASAP.
Industry Application
Fiberglass (FRP) is a versatile, corrosion-resistant engineered material, powering critical applications across bridge infrastructure, industrial safety, chemical processing, marine terminals, municipal engineering, and solar energy. With unmatched durability, low maintenance, and high strength, FRP solutions deliver long-lasting performance for demanding industrial environments worldwide.




