Quanzhou Ridge Steel Structure Co.,Ltd.
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Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Product Details

Place of Origin: FUJIAN, CHINA

Brand Name: QZ RIDGE

Certification: CE,SGS

Model Number: RS-2601211503

Document: Ridge Product parameter.pdf

Payment & Shipping Terms

Minimum Order Quantity: 500 square meters

Price: USD 45~68 square meters

Packaging Details: naked

Delivery Time: 45 days

Payment Terms: L/C,T/T

Supply Ability: 20000 square meters per month

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Product Name:
Fabricated And Galvanized Steel Structures
Primary Framing:
H Column And Beam
Structure Type:
Portal Frame Steel Structure
Roof Insulation:
EPS/Firberglass Wool/Rock Wool/PU
Carbon Structural Steel:
Q235 Q355
Wall:
EPS PU Rookwool Sandwich Panels
Connection:
Bolt Connection
Surfacetreatment:
Galvanized Or Painted
Transport And Load:
Container Shipment
Fireresistance:
Up To 2 Hours
Life Of Service:
More Than 50 Years
Install:
Online Guidance
Load Capacity:
Customizable Based On Design
Use:
Warehouse
Heightrange:
Up To 30m
Size:
15-80 Meters 、80-120 Meters 、50-1000M
Structuretype:
Frame Structure
Design Service Life:
50 Years
Drawing:
Custom As Your Demand
Steel Properties:
High-Quality Carbon Structural Steel
Type:
Light
Surface:
Hot-Dip Galvanized Or Anti-Rust Painting
Design Style:
Modern
Product Name:
Fabricated And Galvanized Steel Structures
Primary Framing:
H Column And Beam
Structure Type:
Portal Frame Steel Structure
Roof Insulation:
EPS/Firberglass Wool/Rock Wool/PU
Carbon Structural Steel:
Q235 Q355
Wall:
EPS PU Rookwool Sandwich Panels
Connection:
Bolt Connection
Surfacetreatment:
Galvanized Or Painted
Transport And Load:
Container Shipment
Fireresistance:
Up To 2 Hours
Life Of Service:
More Than 50 Years
Install:
Online Guidance
Load Capacity:
Customizable Based On Design
Use:
Warehouse
Heightrange:
Up To 30m
Size:
15-80 Meters 、80-120 Meters 、50-1000M
Structuretype:
Frame Structure
Design Service Life:
50 Years
Drawing:
Custom As Your Demand
Steel Properties:
High-Quality Carbon Structural Steel
Type:
Light
Surface:
Hot-Dip Galvanized Or Anti-Rust Painting
Design Style:
Modern
Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings
Low‑Carbon Steel Structural Package for Environmentally Conscious Storage

No two projects are the same, and we embrace that. Our customisation capabilities allow us to adjust span, height, bay spacing, loading, and architectural finishes to your precise needs. Whether you need mezzanine floors, crane systems, or special insulation, we incorporate these features seamlessly. We work closely with you to create a steel solution that fits your functional and aesthetic goals perfectly.

Cut Material Waste by 30% – Smarter Resource Use

Conventional steel construction often leaves piles of off‑cuts and scrap. Our pre‑engineered system changes that. Through precise roll‑forming and exact‑length cutting per your layout, we minimise off‑fall to a fraction of typical levels. This 30% waste reduction not only lowers your material costs but also supports green building initiatives. You receive only what you need, assembled with minimal excess—a win for your budget and the environment.

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

About us
  • In-house roll-forming & fabrication – No middleman, direct quality control.

  • Full engineering package – Including structural calculation, foundation drawing, and assembly manual.

  • Global shipping experience – Containers optimized, CNF/CIF to over 40 countries.

  • 12-month warranty against corrosion & structural defects.

  Item Material Description and surface process
Main steel frame Column and Beam Q235 or Q355 H section steel with two coats of mid-gray paint
Purlin Q235 or Q355 Galvanizd C or Z type steel
Connecting Pieces Tie tube Q235 Circular Tube with two coats of mid-gray paint
Knee-Bracing Q235 L50*4 Galvanizd angle steel
Strutting piece Q235 φ12 Galvanizd Circular Tube
Column Bracing Q235 Circular Tube with two coats of mid-gray paint
Horizontal Bracing Q235 Circular Tube with two coats of mid-gray paint
Casing Q235 φ30*2.5 Galvanized Circular Tube
Door and Window Item Description
Door Roller shutter door or Sliding door
Window PVC Window or aluminum alloy window
Other parts Ventilating device Fan,Ventilation window
Bolt Foundation bolt,High strengthen bolt,Normal bolts
Skylight Yx-840 Glass Fiber Reinforced Plastics
Out/Inner ridge tile 0.50mm Color sheet
Crane beam Q235 or Q345 H section steel with two coats of mid-gray paint

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Our main hardware and equipment

rock wool production line, Frame CAD light steel keel production system, modern CNC C-shaped steel composite plate production line, plasma cutting machine, shearing machine, uncoiling machine, shot blasting machine, intersecting line cutting machine, plate rolling machine , Submerged arc welding machine, CNC plane drill, SKLH gantry type automatic welding machine, SHHJ flange correction machine, 3D CNC cutting machine, etc.

We take continuous testing during the production process and quality inspection of the finished products to strictly ensure that the finished products comply with various countries.

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings

Frequently Asked Questions
  • How long does it take from order to delivery?
  • Typical timeline: design & engineering 15–25 working days + fabrication 25–50 working days + ocean freight (varies by destination; e.g., 22 days to West Africa, 30 days to Europe, 35 days to East Coast North America). Most projects arrive on site within 10–14 weeks of order confirmation.
  • Can you handle the structural design and calculations?
  • Yes. Our in-house engineering team produces a complete structural package — frame analysis, connection design, foundation reaction tables, and anchor bolt layouts — referenced to your local building code. We can also coordinate with your local engineer of record for plan review and permit submission.
  • What about installation? Do you provide site supervision?
  • We strongly recommend our site supervision service for first-time clients: an experienced erection supervisor travels to your site to guide your local crew through the assembly. For repeat clients with trained crews, the bolt-together system is designed for self-erection using our color-coded manual.
  • Do you provide CE / UKCA certification?
  • Yes. Our fabrication facility holds EN 1090-2 EXC3 certification (the highest execution class for steel structures). We issue a Declaration of Performance (DoP) and CE/UKCA marking for all shipments to the European Union and United Kingdom.
  • What is the minimum order?
  • There is no fixed minimum — we handle everything from a single 200㎡ farm shed to a 30,000㎡ multi-building industrial park. Pricing per square meter improves with volume, but we treat every project with the same engineering rigor.
  • How is the steel packed and shipped?
  • All components are bundled, labeled, and containerized with a detailed packing list keyed to the erection drawings. Bolts and small accessories are packed in clearly marked plywood crates. We use export-grade fumigated timber dunnage and VCI (volatile corrosion inhibitor) wrapping for ocean freight.

Prefabricated Rapid‑Build System for Large‑Span Roofs and Multi‑Storey Steel Buildings