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Custom engineered Building Steel Structure solutions for specialized construction projects requiring unique design features

Categories Building Steel Structure
Delivery Time: 45 days
Packaging Details: naked
Certification: CE,SGS
Carbon Structural Steel: Q235 Q355
Frame: Steel Structure
Usage: Industrial buildings, warehouses, commercial complexes
Structure Type: Portal Frame Steel Structure
Payment Terms: L/C,T/T
Life Of Service: More Than 50 Years
Primary Framing: H column and beam
Service: Design, Manufacture, Delivery
Surface Treatment: Galvanized, Painted, Powder Coated
Wall: EPS PU Rookwool Sandwich Panels
Transport And Load: Container Shipment
MOQ: 500 square meters
Span Range: Up to 40 meters
Connection: Bolt Connection
Model Number: RS-2601211503
Brand Name: QZ RIDGE
Supply Ability: 20000 square meters per month
Grade: Q235B,Q345B or as per customer's need
Productname: Building Steel Structure
Price: USD 45~68 square meters
Product Name: Fabricated and Galvanized Steel Structures
Accessory: Gutter ;Downspout ;Roof Ventilator
Place of Origin: FUJIAN, CHINA
Surfacetreatment: Galvanized or painted
Structure: Steel Structure
Roof Insulation: EPS/Firberglass Wool/Rock Wool/PU
Fireresistance: Up to 2 hours
Purlin Section: Q235 C Channel or Z Channel
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  • Product Details
  • Company Profile

Custom engineered Building Steel Structure solutions for specialized construction projects requiring unique design features

Low Carbon Steel Structure Customized Steel Structure Warehouse Light Gauge Steel Frame Construction

Ridge Steel Buildings Co. Ltd. was established in 1998 in Quanzhou China, specialized in design, fabricate and erect of steel buildings. Consisting of a highly operate workshop, an experienced drawing office and an efficient erection team, Ridge Steel Buildings has the ability to provide customers for various steel building with reliable quality and good price.

The works that Ridge Steel Buildings undertakes including pre-engineered steel buildings for factory, warehouse, workshop, godown, store, supermarket, sports centre, multi-storey building etc.

Key Features

1. Full Code Compliance — Wherever You Build

  • We don't ship a "generic" building and hope it passes. Every structure is engineered to your specific location's requirements:
StandardApplication Region
EN 1090-2 EXC2/EXC3Europe, UK, Middle East
UKCA / CE MarkingUnited Kingdom, European Union
NBCC + CSA S16Canada
AISC 360 / ASCE 7United States, Caribbean
AS/NZS 1170Australia, New Zealand, Pacific Islands
SANS 10160 / SANS 10162South Africa, Sub-Saharan Africa
  • What you get: A full documentation package — structural calculations, material certificates, weld procedure specifications (WPS), NDT reports, and declaration of performance (DoP) where required.

2. Bolt-Together System — No Site Welding

  • Every connection in our steel frames is designed for bolted assembly. Your crew needs:
  • A mobile crane or telehandler
  • Basic hand tools and torque wrenches
  • Our color-coded erection drawing set
  • No welding machines. No on-site NDT. No weather delays waiting for weld inspections.

3. Factory Pre-Assembly Inspection

  • Before your steel is packed into containers, we pre-assemble the first structural bay in our factory yard. This isn't just a visual check — we:
  • Verify all bolt hole alignment across column-to-rafter and rafter-to-rafter connections
  • Check base plate flatness and anchor bolt template dimensions
  • Confirm brace lengths and connection angles
  • The inspection report — with photos and measurement data — is included in your shipment documentation. When your containers open on site, there are no surprises.

4. Custom Engineering for Your Climate

  • Not all steel buildings are the same. We design to your actual environmental loads:
Load TypeDesign RangeExample
Snow loadUp to 5.0 kPaNorthern Canada, Scandinavia, Alps
Wind speedUp to 250 km/h (70 m/s)Hurricane zones, coastal Australia
SeismicZone 0 to Zone 4New Zealand, Japan, Chile
Temperature-45°C to +50°CArctic to desert environments

5. Corrosion Protection That Lasts

  • Steel only lasts if it's protected. Our standard finish is hot-dip galvanizing to ≥ 85μm zinc thickness, tested to ISO 1461. For coastal or aggressive environments, we offer:
  • Heavy galvanizing (≥ 140μm)
  • Duplex system: galvanizing + epoxy primer + polyurethane topcoat
  • Stainless steel fasteners (A2-70 / A4-80 grade) for critical connections
  • Corten (weathering) steel upon request

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.

ItemMaterialDescription and surface process
Main steel frameColumn and BeamQ235 or Q355H section steel with two coats of mid-gray paint
PurlinQ235 or Q355Galvanizd C or Z type steel
Connecting PiecesTie tubeQ235Circular Tube with two coats of mid-gray paint
Knee-BracingQ235L50*4 Galvanizd angle steel
Strutting pieceQ235φ12 Galvanizd Circular Tube
Column BracingQ235Circular Tube with two coats of mid-gray paint
Horizontal BracingQ235Circular Tube with two coats of mid-gray paint
CasingQ235φ30*2.5 Galvanized Circular Tube
Door and WindowItemDescription
DoorRoller shutter door or Sliding door
WindowPVC Window or aluminum alloy window
Other partsVentilating deviceFan,Ventilation window
BoltFoundation bolt,High strengthen bolt,Normal bolts
SkylightYx-840 Glass Fiber Reinforced Plastics
Out/Inner ridge tile0.50mm Color sheet
Crane beamQ235 or Q345 H section steel with two coats of mid-gray paint

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.

FAQ

Q1: Can I have a visit to your factory before the order?

A: Why not? Welcome to visit our factory. You can fly to Fujian Quanzhou Airport, then we will pick you up at the airport, hotel booking service is available.

Q2:ls your price competitive compared with other companies?

A:Our business objectives are to give the best price with same quality and best quality with the same price. We will do everything we can to reduce your cost and guarantee you get the best product that you paid for.

Q3:Do you accept container loading inspection?

A:You are welcomed to send an inspector, not only for the container loading, but any time during the production time.

Q4:Do you offer designing service for us?

A:Yes, we could design full solution drawings as your requirements.By using AutoCAD ,PKPM ,3D3S,Tekla Structures (X steel) etc., we can design complex industrial building like office mansion, super marker, auto dealer shop,shipping mall, 5 stars hotel.

Q5:What is the delivery time?

A:Delivery time depends on order quantities. ln general, the delivery time to nearest seaport in China will be 30 days after receiving deposit.

Q6:How can you get a quotation for your projects?

A:You can contact us by email, phone, TM, WhatsApp and so on 24*7 and you will get reply within 8 hours. Firstly, please send us your project details and your requirements. Then we will design accordingly, free of charge. Afterwards, please check and confirm whether you like the drawings. If not, we shall get the drawings revised until your confirmation.

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