Quanzhou Ridge Steel Structure Co.,Ltd.
| Delivery Time | 45days |
| Main frame | Solid H-shape Steel Beam |
| Transport and load | Container Shipment |
| Payment Terms | L/C,T/T |
| Advantage | Easy Installation,low cost,strong and durable |
| Processing Service | Bending, Welding, Decoiling, Cutting, Punching |
| Feature | Fast Build |
| Roof | Sandwich Panel+ Decoration Ceiling |
| Supply Ability | 20000 square meters per month |
| Product name | Prefab own brand steel workshop |
| Packaging Details | naked |
| Model Number | RS-11061421 |
| Certification | CE,SGS |
| Place of Origin | FUJIAN,CHINA |
| Brand Name | QZ RIDGE |
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Product Specification
| Delivery Time | 45days | Main frame | Solid H-shape Steel Beam |
| Transport and load | Container Shipment | Payment Terms | L/C,T/T |
| Advantage | Easy Installation,low cost,strong and durable | Processing Service | Bending, Welding, Decoiling, Cutting, Punching |
| Feature | Fast Build | Roof | Sandwich Panel+ Decoration Ceiling |
| Supply Ability | 20000 square meters per month | Product name | Prefab own brand steel workshop |
| Packaging Details | naked | Model Number | RS-11061421 |
| Certification | CE,SGS | Place of Origin | FUJIAN,CHINA |
| Brand Name | QZ RIDGE | ||
| High Light | farmhouse steel structure workshop ，wide span steel buildings ，factory direct sale steel shed | ||
A prefabricated steel structure building is a bolt-together steel frame system in which every column, rafter, purlin, and connection plate is precision-cut, drilled, and welded in our factory — then containerized and shipped to your site for rapid assembly.
Primary Steel Frame
|
Component |
Material |
Standard |
|
Columns |
Q355B / S355JR welded H-section |
GB/T 11263 / EN 10025-2 |
|
Rafters |
Q355B / S355JR welded H-section (tapered) |
GB/T 11263 |
|
Base plates |
Q235B / S235JR, 16–25mm thick |
GB/T 3274 |
|
Connection bolts |
Grade 10.9 high-strength friction-grip bolts |
GB/T 1228 / EN 14399 |
Secondary Structure
|
Component |
Material |
Specification |
|
Purlins |
Q345B / S350GD cold-formed Z or C section |
GB/T 6725 / EN 10149-2 |
|
Girts |
Q345B / S350GD cold-formed C section |
GB/T 6725 |
|
Bracing (roof/wall) |
Ø20–25mm round steel with turnbuckle |
GB/T 699 |
|
Tie rods |
Ø12–16mm round steel |
GB/T 699 |
Enclosure System
|
Type |
Thickness |
Application |
Thermal Performance |
|
Single-skin steel sheet |
0.4–0.6mm |
Agricultural, open-sided |
Minimal |
|
EPS sandwich panel |
50–100mm |
Warehouses, workshops |
U = 0.40–0.70 |
|
Rock wool sandwich panel |
50–150mm |
Fire-rated, public buildings |
U = 0.25–0.45 |
|
PIR sandwich panel |
50–150mm |
Cold storage, cold climate |
U = 0.18–0.25 |
|
Single-skin + glass wool blanket |
50–100mm + liner sheet |
Large-span, budget-sensitive |
U = 0.35–0.50 |
Project Location: Suburbs of Saskatoon, Saskatchewan Building Type: Constant‑temperature storage warehouse for seeds / grains Building Area: 320 m² (10 m × 32 m) Eave Height: 3.8 m; Ridge Height: 5.2 m Delivery Lead Time: 15 days for design + 25 days for production + 18 days for over‑land transportation & installation
The client is a breeding farm owned by a seed company in Saskatchewan, requiring storage for high‑value canola and wheat breeding seeds. Internal warehouse temperature shall be kept stable at 10‑15 °C with relative humidity ≤ 50 % to avoid seed vitality degradation. Saskatchewan sees extreme winter temperatures as low as ‑40 °C, with a foundation frost depth reaching 1.8 m.
• Portal steel frame with clear span of 10 m and column spacing of 5.0 m • Full‑enclosure envelope using 150 mm PIR polyurethane cold‑storage panels (walls + roof). Joints are sealed with sealant to ensure excellent overall air‑tightness. • An additional PE vapour barrier installed on the warm side of the roof to block indoor moisture vapour penetration into insulation layers • Wall‑mounted air‑conditioning system equipped (cooling & dehumidification modes), sized based on sensible heat load of 8 kW • Foundation with enhanced thermal insulation: 100 mm XPS extruded polystyrene boards beneath floor slab (extending 1.2 m outward around foundation perimeter) to break frost‑heave thermal bridges • Door: 3.0 m × 3.0 m insulated sliding door (100 mm PIR filled door panel)
Full‑wrap thermal insulation plus air‑tight design delivers minimal fluctuation of internal temperature and humidity. Actual test data: under external ambient temperature of 35 °C in summer, indoor temperature can be maintained below 13 °C merely by activating dehumidification mode. Energy consumption is 40 % lower compared with conventional cold‑storage solutions.
Frequently Asked Questions
· What if something is missing or damaged during shipping?
· We provide an assembly kit checklist with every shipment, and we recommend your site team do an inventory count before starting erection. In the rare event of a shortage or transit damage, we ship replacements by air freight at our cost — typically arriving within 5–7 business days.
· 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.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1998
Total Annual:
40000000-50000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Quanzhou RIDGE Steel Structure Co. Ltd. was established in Quanzhou China, a professional manufacturer of steel structure with 20 years exporting experience, finished 1820 projects total 7600000 square meter.We have 2 modern factories with a total area of 21000 m2,20000 tons aunual produce... Quanzhou RIDGE Steel Structure Co. Ltd. was established in Quanzhou China, a professional manufacturer of steel structure with 20 years exporting experience, finished 1820 projects total 7600000 square meter.We have 2 modern factories with a total area of 21000 m2,20000 tons aunual produce...
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