Cold-Formed Galvanized C Purlins and Secondary Steel Girts
Galvanized C profiles are engineered for simple span roof purlins, vertical wall girts, door/window framing, and solar PV ground mounting structures. CNC automated hole punching according to fabrication drawings ensures rapid, bolt-together site assembly with zero on-site cutting or welding.
Galvanized C Purlins & Wall Girts: Galvanized C Purlins & Wall Girts is a certified building envelope system manufactured according to TS EN 14509 and CE standards, featuring a S350GD+Z / S390GD Yapısal Çelik core, Euroclass A1 Sınıfı (Hiç Yanmaz Çelik) fire performance rating, and C100, C120, C140, C150, C160, C180, C200, C250, C300, C350, C400 mm modular cover width. Custom produced from 2.00m to 13.50m with zero jobsite waste and full export logistics.
Select Secondary Steel Profile for Your Frame Spans
01 Product Overview & Primary Use
Galvanized C profiles are engineered for simple span roof purlins, vertical wall girts, door/window framing, and solar PV ground mounting structures. CNC automated hole punching according to fabrication drawings ensures rapid, bolt-together site assembly with zero on-site cutting or welding.
Engineered from high-yield S350GD+Z galvanized structural steel, Galvanized C Purlins & Wall Girts reduces structural secondary steel weight by up to 40% while accelerating bolting speed with factory-punched holes.
02 Section Geometry & Dimensions
Cold-formed C and Z purlins are roll-formed in thicknesses from 1.50mm to 3.00mm and lengths from 1.00m to 14.00m with factory-punched bolt holes.
- ▪ Section / Depth Range: C100, C120, C140, C150, C160, C180, C200, C250, C300, C350, C400 mm
- ▪ Production Length: 14.50 m (Firesiz net boy kesim)
- ▪ Connection Detailing: Civatalı / Klemensli Montaj (Fabrikasyon CNC Delikli)
03 Steel Grade, Yield Strength & Section Properties
Roll-formed from S350GD high-yield structural steel with Z275 zinc coating, eliminating primer painting and accelerating bolted installation.
04 Galvanized Coating & Corrosion Protection
Manufactured from high-yield S320GD and S350GD+Z structural steel conforming to EN 10346 with continuous hot-dip galvanized coating (Z100 to Z275 g/m²). Eliminates on-site blast cleaning and protective painting while providing robust corrosion protection in demanding industrial atmospheres.
05 C-Purlin Gauge, Weight & Price per kg Table
C-Section purlins and wall rails (C100 to C400) weight ranges, S350GD+Z structural yield specs, zinc mass and reference unit rates per kg.
| Thickness | Unit Price | Steel Grade & Yield | Zinc Coating | Weight Range (C 100-300) | Punching & Length Std |
|---|---|---|---|---|---|
| 1.5 mm |
$1.56 / kg
EXW Turkey
|
S350GD+Z (350 MPa) | Z100 – Z275 gr/m² | 2.45 – 5.80 kg/m | C100 - C300 / CNC Punched |
| 2 mm |
$1.60 / kg
EXW Turkey
|
S350GD+Z (350 MPa) | Z140 – Z275 gr/m² | 3.25 – 7.65 kg/m | C100 - C300 / CNC Punched |
| 2.5 mm |
$1.68 / kg
EXW Turkey
|
S350GD+Z (350 MPa) | Z200 – Z275 gr/m² | 4.05 – 9.50 kg/m | C100 - C300 / CNC Punched |
| 3 mm |
$1.80 / kg
EXW Turkey
|
S350GD+Z (350 MPa) | Z275 gr/m² | 4.85 – 11.35 kg/m | C100 - C300 / CNC Punched |
| 4 mm |
$1.90 / kg
EXW Turkey
|
S350GD+Z (350 MPa) | Z275 gr/m² | 6.45 – 14.85 kg/m | C100 - C300 / CNC Punched |
C-Section Purlin Dimensions & Linear Weight (kg/m) Table
S350GD+Z high-yield cold-formed C-purlin and wall girt linear weights and properties according to EN 1993-1-3.
| Profile Section Code Dimensions (h × b × c × t) | Thickness (t) | Unit Weight kg/m | Inertia (Ix) cm⁴ | Section Mod (Wx) cm³ | Optimal Span metre |
|---|---|---|---|---|---|
|
C 100 Series (Web: 100 mm)
100 × 50 × 15 mm
|
|||||
| C 100x50x15x1.5 | 1.50 mm | 2.45 kg/m | 57.01 cm⁴ | 11.40 cm³ | 2.07 – 2.70 m |
| C 100x50x15x2 | 2.00 mm | 3.25 kg/m | 75.52 cm⁴ | 15.10 cm³ | 2.28 – 2.98 m |
| C 100x50x15x2.5 | 2.50 mm | 4.02 kg/m | 93.79 cm⁴ | 18.76 cm³ | 2.49 – 3.26 m |
| C 100x50x15x3 | 3.00 mm | 4.78 kg/m | 111.82 cm⁴ | 22.36 cm³ | 2.70 – 3.53 m |
|
C 120 Series (Web: 120 mm)
120 × 50 × 15 mm
|
|||||
| C 120x50x15x1.5 | 1.50 mm | 2.68 kg/m | 86.66 cm⁴ | 14.44 cm³ | 2.48 – 3.25 m |
| C 120x50x15x2 | 2.00 mm | 3.56 kg/m | 114.96 cm⁴ | 19.16 cm³ | 2.74 – 3.58 m |
| C 120x50x15x2.5 | 2.50 mm | 4.42 kg/m | 142.96 cm⁴ | 23.83 cm³ | 2.99 – 3.91 m |
| C 120x50x15x3 | 3.00 mm | 5.25 kg/m | 170.67 cm⁴ | 28.45 cm³ | 3.24 – 4.24 m |
|
C 140 Series (Web: 140 mm)
140 × 50 × 18 mm
|
|||||
| C 140x50x18x1.5 | 1.50 mm | 3.02 kg/m | 126.33 cm⁴ | 18.05 cm³ | 2.90 – 3.79 m |
| C 140x50x18x2 | 2.00 mm | 4.01 kg/m | 167.74 cm⁴ | 23.96 cm³ | 3.19 – 4.17 m |
| C 140x50x18x2.5 | 2.50 mm | 4.98 kg/m | 208.82 cm⁴ | 29.83 cm³ | 3.49 – 4.56 m |
| C 140x50x18x3 | 3.00 mm | 5.94 kg/m | 249.55 cm⁴ | 35.65 cm³ | 3.78 – 4.95 m |
|
C 150 Series (Web: 150 mm)
150 × 50 × 18 mm
|
|||||
| C 150x50x18x1.5 | 1.50 mm | 3.15 kg/m | 148.41 cm⁴ | 19.79 cm³ | 3.10 – 4.06 m |
| C 150x50x18x2 | 2.00 mm | 4.18 kg/m | 197.13 cm⁴ | 26.28 cm³ | 3.42 – 4.47 m |
| C 150x50x18x2.5 | 2.50 mm | 5.20 kg/m | 245.49 cm⁴ | 32.73 cm³ | 3.74 – 4.89 m |
| C 150x50x18x3 | 3.00 mm | 6.20 kg/m | 293.49 cm⁴ | 39.13 cm³ | 4.06 – 5.30 m |
|
C 160 Series (Web: 160 mm)
160 × 60 × 20 mm
|
|||||
| C 160x60x20x1.5 | 1.50 mm | 3.55 kg/m | 193.65 cm⁴ | 24.21 cm³ | 3.31 – 4.33 m |
| C 160x60x20x2 | 2.00 mm | 4.70 kg/m | 257.25 cm⁴ | 32.16 cm³ | 3.65 – 4.77 m |
| C 160x60x20x2.5 | 2.50 mm | 5.85 kg/m | 320.38 cm⁴ | 40.05 cm³ | 3.99 – 5.21 m |
| C 160x60x20x3 | 3.00 mm | 6.95 kg/m | 383.04 cm⁴ | 47.88 cm³ | 4.33 – 5.65 m |
|
C 180 Series (Web: 180 mm)
180 × 60 × 20 mm
|
|||||
| C 180x60x20x1.5 | 1.50 mm | 3.85 kg/m | 254.68 cm⁴ | 28.30 cm³ | 3.73 – 4.87 m |
| C 180x60x20x2 | 2.00 mm | 5.10 kg/m | 338.50 cm⁴ | 37.61 cm³ | 4.11 – 5.37 m |
| C 180x60x20x2.5 | 2.50 mm | 6.35 kg/m | 421.80 cm⁴ | 46.87 cm³ | 4.49 – 5.86 m |
| C 180x60x20x3 | 3.00 mm | 7.55 kg/m | 504.56 cm⁴ | 56.06 cm³ | 4.87 – 6.36 m |
|
C 200 Series (Web: 200 mm)
200 × 60 × 20 mm
|
|||||
| C 200x60x20x1.5 | 1.50 mm | 4.10 kg/m | 325.91 cm⁴ | 32.59 cm³ | 4.14 – 5.41 m |
| C 200x60x20x2 | 2.00 mm | 5.45 kg/m | 433.36 cm⁴ | 43.34 cm³ | 4.56 – 5.96 m |
| C 200x60x20x2.5 | 2.50 mm | 6.78 kg/m | 540.21 cm⁴ | 54.02 cm³ | 4.98 – 6.51 m |
| C 200x60x20x3 | 3.00 mm | 8.08 kg/m | 646.48 cm⁴ | 64.65 cm³ | 5.41 – 7.07 m |
| C 200x80x22x1.5 | 1.50 mm | 4.72 kg/m | 388.69 cm⁴ | 38.87 cm³ | 4.14 – 5.41 m |
| C 200x80x22x2 | 2.00 mm | 6.20 kg/m | 516.67 cm⁴ | 51.67 cm³ | 4.56 – 5.96 m |
| C 200x80x22x2.5 | 2.50 mm | 7.70 kg/m | 643.86 cm⁴ | 64.39 cm³ | 4.98 – 6.51 m |
| C 200x80x22x3 | 3.00 mm | 9.18 kg/m | 770.27 cm⁴ | 77.03 cm³ | 5.41 – 7.07 m |
| C 200x80x22x4 | 4.00 mm | 12.10 kg/m | 1020.73 cm⁴ | 102.07 cm³ | 6.25 – 8.17 m |
|
C 220 Series (Web: 220 mm)
220 × 65 × 20 mm
|
|||||
| C 220x65x20x1.5 | 1.50 mm | 4.45 kg/m | 425.84 cm⁴ | 38.71 cm³ | 4.55 – 5.95 m |
| C 220x65x20x2 | 2.00 mm | 5.90 kg/m | 566.37 cm⁴ | 51.49 cm³ | 5.02 – 6.56 m |
| C 220x65x20x2.5 | 2.50 mm | 7.35 kg/m | 706.20 cm⁴ | 64.20 cm³ | 5.48 – 7.16 m |
| C 220x65x20x3 | 3.00 mm | 8.75 kg/m | 845.32 cm⁴ | 76.85 cm³ | 5.95 – 7.77 m |
| C 220x65x20x4 | 4.00 mm | 11.50 kg/m | 1121.46 cm⁴ | 101.95 cm³ | 6.88 – 8.99 m |
|
C 250 Series (Web: 250 mm)
250 × 65 × 20 mm
|
|||||
| C 250x65x20x1.5 | 1.50 mm | 4.85 kg/m | 575.70 cm⁴ | 46.06 cm³ | 5.17 – 6.76 m |
| C 250x65x20x2 | 2.00 mm | 6.45 kg/m | 765.99 cm⁴ | 61.28 cm³ | 5.70 – 7.45 m |
| C 250x65x20x2.5 | 2.50 mm | 8.05 kg/m | 955.48 cm⁴ | 76.44 cm³ | 6.23 – 8.14 m |
| C 250x65x20x3 | 3.00 mm | 9.60 kg/m | 1144.16 cm⁴ | 91.53 cm³ | 6.76 – 8.83 m |
| C 250x65x20x4 | 4.00 mm | 12.65 kg/m | 1519.14 cm⁴ | 121.53 cm³ | 7.81 – 10.21 m |
|
C 300 Series (Web: 300 mm)
300 × 75 × 20 mm
|
|||||
| C 300x75x20x1.5 | 1.50 mm | 5.70 kg/m | 956.30 cm⁴ | 63.75 cm³ | 6.21 – 8.11 m |
| C 300x75x20x2 | 2.00 mm | 7.55 kg/m | 1272.83 cm⁴ | 84.86 cm³ | 6.84 – 8.94 m |
| C 300x75x20x2.5 | 2.50 mm | 9.42 kg/m | 1588.25 cm⁴ | 105.88 cm³ | 7.48 – 9.77 m |
| C 300x75x20x3 | 3.00 mm | 11.25 kg/m | 1902.55 cm⁴ | 126.84 cm³ | 8.11 – 10.60 m |
| C 300x75x20x4 | 4.00 mm | 14.85 kg/m | 2527.84 cm⁴ | 168.52 cm³ | 9.38 – 12.25 m |
|
C 350 Series (Web: 350 mm)
350 × 80 × 25 mm
|
|||||
| C 350x80x25x1.5 | 1.50 mm | 6.36 kg/m | 1462.70 cm⁴ | 83.58 cm³ | 7.24 – 9.47 m |
| C 350x80x25x2 | 2.00 mm | 8.48 kg/m | 1947.48 cm⁴ | 111.28 cm³ | 7.98 – 10.43 m |
| C 350x80x25x2.5 | 2.50 mm | 10.60 kg/m | 2430.87 cm⁴ | 138.91 cm³ | 8.72 – 11.40 m |
| C 350x80x25x3 | 3.00 mm | 12.72 kg/m | 2912.88 cm⁴ | 166.45 cm³ | 9.46 – 12.36 m |
| C 350x80x25x4 | 4.00 mm | 16.95 kg/m | 3872.75 cm⁴ | 221.30 cm³ | 10.94 – 14.30 m |
|
C 400 Series (Web: 400 mm)
400 × 100 × 30 mm
|
|||||
| C 400x100x30x1.5 | 1.50 mm | 7.48 kg/m | 2299.04 cm⁴ | 114.95 cm³ | 8.28 – 10.82 m |
| C 400x100x30x2 | 2.00 mm | 9.97 kg/m | 3061.41 cm⁴ | 153.07 cm³ | 9.12 – 11.92 m |
| C 400x100x30x2.5 | 2.50 mm | 12.46 kg/m | 3821.79 cm⁴ | 191.09 cm³ | 9.97 – 13.03 m |
| C 400x100x30x3 | 3.00 mm | 14.95 kg/m | 4580.19 cm⁴ | 229.01 cm³ | 10.81 – 14.13 m |
| C 400x100x30x4 | 4.00 mm | 19.90 kg/m | 6091.05 cm⁴ | 304.55 cm³ | 12.50 – 16.34 m |
* Statik ve Açıklık Kriteri: Atalet (Ix) ve Mukavemet (Wx) değerleri TS EN 1993-1-3 (Eurocode 3) ince cidarlı çelik normlarına göre kalınlık bazında hesaplanmıştır.
Tavsiye edilen aşık açıklıkları; S350GD+Z çelik kalitesi, L/200 sehim sınırı ve standart aşık yayılı yükü (100–140 kg/m², 1.5 m aşık aksı) referans alınarak verilmiştir. Kesin aşık aralığı ve kesiti, proje bölgesi kar ve rüzgar yükü hesaplarına göre belirlenmelidir.
06 Standard C-Section Dimensions & Geometry
Standard cold-formed C-section purlin and rail geometries manufactured to tight dimensional tolerances:
H: 100mm | B: 50mm | C: 15mm. Ideal for short bay cladding rails and modular frames.
H: 150mm | B: 50mm | C: 18mm. Most widely specified size for 4.0m to 6.0m side rail bays.
H: 200mm | B: 60mm | C: 20mm. High bending rigidity for heavy cladding and high-wind zones.
H: 250mm | B: 70mm | C: 22mm. Designed for clear bays of 7.0m+ without intermediate supports.
07 Corrosion Resistance & Structural Safety
Class A1 non-combustible galvanized steel producing zero smoke or droplets.
High tensile strength reduces roof secondary framing weight by up to 40% compared to hot-rolled beams.
08 Assembly & Joint Detailing
Cold-formed purlins are bolted to primary rafters using connecting cleats. Z-purlins allow continuous nested laps over supports, reducing structural deflections by up to 35%.
09 Applications & Market Sectors
10 Logistics: Truckload & 40ft Container Stuffing
Delivered in steel-strapped bundles. A standard trailer carries 24,000 kg of structural purlins.
Loaded up to the container maximum payload of 26,000 kg with certified export lashing.
11 Pricing per kg & Project Quotation
Factory-direct indicative kg rates for S350GD+Z galvanized purlins.
12 Compatible Purlin Accessories & Brackets
Galvanized C / Z / Sigma Purlin Span & Deflection Calculator
Specify your purlin span between trusses, purlin spacing and profile section to calculate deflection limits (L/200, L/300), safe capacity, and required steel tonnage per EN 1993-1-3.
Z200 / 2.00 mm (L = 6.00 m)
Related Engineering, Installation & Specification Guides
PUR, PIR, Rockwool and EPS Core Comparison
Thermal conductivity, fire ratings and lifecycle cost comparison.
How to Select Panel Thickness According to TS 825
Optimal panel thickness based on regional climatic zones and U-values.
Sandwich Panels vs. Double-Skin Trapezoidal Sheet
Installation speed, thermal bridging risks and building lifecycle costs.
Related & Complementary Products
Galvanized Z purlins feature asymmetric flanges (narrow/broad) allowing them to nest together over support frames. This creates a continuous structural beam that dramatically reduces mid-span deflection and permits smaller sections or wider frame spacing, saving up to 15% overall steel weight on large industrial roofs.
Galvanized omega (top hat) profiles offer an exceptionally lightweight, rigid substructure solution for horizontal and vertical architectural cladding, interior ceiling framing, and solar panel mounting rails. The symmetrical hat section allows secure surface anchoring while providing air ventilation space behind cladding panels.
Sigma profiles incorporate an extra stiffening fold along the web center, significantly increasing local buckling resistance and flexural rigidity compared to standard C/Z sections. Engineered for challenging architectural projects with wide frame bays (6m to 9m), heavy roof equipment, or severe environmental snow/wind loads.
Roof sandwich panels with rigid PUR foam are designed with 3 or 5 ribs to deliver structural span rigidity, storm resistance and continuous thermal insulation for industrial, commercial and storage buildings. Produced continuously with customizable lengths to eliminate end-laps. The reinforced 5-rib geometric crown profile is fully certified for solar photovoltaic (PV) rooftop mounting rails without compromising envelope watertightness.
Manufactured from 1200 mm steel coils to provide a full 1000 mm effective cover width with 6 ribs. Fewer end-laps, faster installation, and maximum area coverage per panel make it the industrial benchmark for factory roofs and warehouse walls.
CNC-bent box gutters and custom flashings ensure complete rainwater collection, storm drainage and clean structural transitions for large roofs and facades.
Frequently Asked Questions
Common technical inquiries regarding sandwich panels, profiles, pricing, and export supply.
Ready to Receive a Factory-Direct Project Quotation?
Share your project drawings or quantity takeoffs; our engineering team will provide a comprehensive commercial offer within 2 hours.