Quanzhou Ridge Steel Structure Co.,Ltd.
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Steel Frame Construction Prefab Hanger Prefabricated Factory Warehouse Metal Building Quick Assemble

Product Details

Place of Origin: FUJIAN,CHINA

Brand Name: QZ RIDGE

Certification: CE,SGS

Model Number: RSM25

Payment & Shipping Terms

Minimum Order Quantity: 500 square meters

Price: USD 55~68 square meters

Packaging Details: naked

Delivery Time: 45days

Payment Terms: L/C,T/T

Supply Ability: 20000 square meters per month

Get Best Price
Highlight:
Purlin:
C/Z Purlin
Product Name:
Warehouse
Surface Processing:
Painted Or Galvanized
Steel Grade:
Q235B/Q355B
Wall & Roof Cladding:
PPGI/PPGL Color-Coated Steel Sheet, 0.4–0.8mm
Material:
Portal Frame Steel Structure
Insulation Option:
EPS / Rockwool / PU Sandwich Panel, 50–150mm
Installation:
Professional Engineer Guidance Or On-Site Supervision
Purlin:
C/Z Purlin
Product Name:
Warehouse
Surface Processing:
Painted Or Galvanized
Steel Grade:
Q235B/Q355B
Wall & Roof Cladding:
PPGI/PPGL Color-Coated Steel Sheet, 0.4–0.8mm
Material:
Portal Frame Steel Structure
Insulation Option:
EPS / Rockwool / PU Sandwich Panel, 50–150mm
Installation:
Professional Engineer Guidance Or On-Site Supervision
Steel Frame Construction Prefab Hanger Prefabricated Factory Warehouse Metal Building Quick Assemble
Steel Frame Construction Prefab Hanger Prefabricated Factory Warehouse Metal Building Quick Assemble
What Is a Prefabricated Steel Building?

A prefabricated steel building is a customized building solution where the complete steel structure is designed, manufactured, and prepared in our factory before being shipped to your project site for installation.

From structural frames and secondary steel members to connection components, every part is precision-engineered and produced under strict quality control to ensure accurate assembly and reliable performance.

Compared with traditional construction methods, prefabricated steel buildings offer:

Faster project completion with factory-made components ready for installation
Lower construction costs by reducing on-site labor and material waste
Better quality control through professional factory manufacturing
Flexible customization for warehouses, workshops, agricultural buildings, and industrial facilities
Long-term durability designed for different climates and operating conditions

More than a steel frame, we provide a complete engineered building solution — from design and fabrication to delivery and installation support.

Structural Components & Specifications
Category Component Name Function Standards/Notes
Primary Load-Bearing Members Columns (Vertical) Support vertical loads High-strength low-alloy steel
Primary Load-Bearing Members Beams (Horizontal) Carry floor/roof loads H-section, I-section most common
Primary Load-Bearing Members Trusses Long-span roof support Triangular/parallel chord designs
Primary Load-Bearing Members Bracings (Diagonal) Resist wind/seismic forces X/K-type configurations
Secondary Members Purlins (Roof) Support roof panels Thickness: 1.5-3.0 mm
Secondary Members Girts (Wall) Support wall cladding Spacing: 1.0-2.0 m
Connections & Fasteners High-Strength Bolts Member connections M16-M30 common
Connections & Fasteners End Plates Beam-column joints Pre-drilled bolt holes
Connections & Fasteners Shear Studs Steel-concrete composite action Welded to beams for floor slabs
Enclosure Systems Roof Panels Weather protection Standing seam/corrugated types
Enclosure Systems Sandwich Panels (Walls) Insulation + cladding Fire rating: A2/B1
Enclosure Systems ALC Panels (Floors/Walls) Fire/thermal insulation Density: 550-650 kg/m³
Accessories Base Plates Column-to-foundation transfer Anchored with cast-in bolts
Accessories Stair Modules Prefabricated access Integrated handrails (S304 stainless)
Accessories Crane Rails Overhead crane support Welded to column brackets
Steel structure building construction overview Industrial warehouse steel framework
Project Case Study | 480㎡ Agricultural Machinery Workshop in Canada
Project Overview

Location: Ottawa Valley, Ontario, Canada
Building Type: Agricultural Machinery Repair Workshop
Building Area: 480㎡ (16m * 30m)
Eave Height: 4.5m
Ridge Height: 6.0m
Application: Farm equipment repair, maintenance, and winter storage

Customer Requirements

The client needed a practical and reliable workshop that could provide:

  • Enough space for large agricultural machinery
  • Strong structural performance under heavy snow loads
  • Good thermal insulation for cold climate conditions
  • Fast construction with reduced on-site work
  • Long service life with low maintenance requirements
Engineering Solution

A customized prefabricated steel building solution was designed according to local climate conditions and project requirements.

Item Specification
Structure Portal frame steel structure with welded H-section steel
Design Clear span design for agricultural machinery operation
Wall System 75mm Rock Wool Sandwich Panels
Roof System 100mm Rock Wool Sandwich Panels with anti-condensation layer
Doors 1 * Electric Roller Door (4.5m * 5.0m)
Personnel Door 1 * Door (3.0m * 3.0m)
Foundation Helical pile foundation suitable for frozen soil conditions
Project Advantages:
✓ Designed for heavy snow and cold climate
✓ Excellent thermal insulation performance
✓ Fast installation with prefabricated components
✓ Reduced on-site construction difficulties 
Frequently Asked Questions (FAQ)
1. How long does it take to complete a steel building project?

The project timeline depends on the building size, design complexity, and shipping destination.

A typical schedule includes:

  • Design & Engineering: 15–25 working days
  • Fabrication & Quality Inspection: 25–50 working days
  • Ocean Shipping: Depends on destination

Most projects can be delivered to the site within approximately 10–14 weeks after order confirmation.

2. 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.

3. Do you provide installation service?

Yes. We provide different levels of installation support:

✓ Detailed installation drawings and manuals
✓ Online technical guidance
✓ On-site installation supervision service if required

Our prefabricated steel buildings use bolted connections, making installation faster and more convenient for local construction teams.

4. How are the steel components 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.

5. What materials are included in your steel building package?

A complete steel building package may include:

  • Main steel frame (columns & beams)
  • Roof purlins and wall girts
  • Bracing system
  • Roof and wall panels
  • Doors and windows (optional)
  • Accessories and connection components

The package can be customized based on your project needs.

6. How do you ensure product quality?

Quality control is carried out throughout the manufacturing process:

  • Raw material inspection
  • Welding quality control
  • Dimensional inspection
  • Surface treatment inspection
  • Packing inspection before shipment

All components are checked before delivery to ensure smooth installation on site.

7. What information do you need before quotation?

To provide an accurate quotation, please share:

  • Building size (width * length * height)
  • Building location
  • Application of the building
  • Wind and snow load requirements (if available)
  • Door and window requirements
  • Insulation requirements

If drawings are available, please send them for a more accurate proposal.

Customer Feedback

— Farm Owner, Queensland, Australia

"I didn't think I'd be writing a testimonial for a Chinese steel shed, but here we are. To be completely honest, I went with you because the price was 30% under the local quote and I figured even if it was 'good enough', I'd be ahead. What I got was frankly better than the Australian-made shed I put up in 2019. The coating is holding up beautifully through two Queensland wet seasons, the roller doors are smoother, and the natural ventilation design means my hay comes out of storage in visibly better condition. Colour me surprised — and converted. I've told my neighbour, and he's already asked for your contact."

— Norwegian Seafood Export Company — Operations Vice President

"Honest feedback: the energy performance data speaks louder than anything I can say. Our third-party energy auditor measured the new cold store at 12% lower kWh per cubic meter than the Norwegian-built facility we opened three years ago. The thermal bridge detailing at the column bases and door frames — something we flagged during the drawing review — was executed to a standard we frankly did not expect. If your next Nordic client wants a reference call, put them in touch. I will take that call."

Steel structure engineering documentation Quality control and certification processes
Steel building component packaging Completed steel structure building project
Our Promise: Quality Craftsmanship, Tailored Solutions
We deliver durable, efficient, and customized steel structure buildings that meet your specific industrial and warehouse requirements with professional engineering support and comprehensive after-sales service.