Our high-strength prefabricated steel structure warehouses deliver
a comprehensive one-stop solution, boasting swift delivery
timelines and expert installation guidance. This building system
comprises two primary components: an internal support framework and
external cladding.
The steel framework utilizes a portal frame design, integrating
steel columns, beams, and bracing. When combined with the external
cladding, it forms a fully enclosed structure engineered to
withstand extreme weather conditions—including high winds, heavy
rainfall, and snow loads—ensuring long-term structural integrity.
All metal components undergo precision cutting, welding, drilling,
and painting in our specialized workshop before transportation to
the site. On-site assembly is streamlined through bolted
connections, enabling rapid, labor-efficient construction with
minimal on-site work.
The steel frame is composed of five core structural elements:
- Tension members
- Compression members
- Bending members
- Combined-stress members
- Connections
Each component is engineered to work in synergy, optimizing load
distribution and structural stability.

Construction Features
- Lightweight construction with high strength, large spans, and
reduced foundation pressure
- Shorter construction period compared to concrete buildings with
simple on-site assembly
- 20-30% lower investment cost than traditional buildings
- High fireproof performance and corrosion resistance
- Buildings can be disassembled, moved easily, and recycled with no
pollution
Technical Specifications
| Dimension | Length * width * eave height, roof slope |
|---|
| Type | Single/double/multi-slope; Single/double/multi-span;
Single/double/multi-floor |
| Foundation | Concrete and steel foundation bolts |
| Column and Beam | Hot rolled or welded H steel Q355B, high strength bolts connection,
straight or variable cross-section |
| Bracing | X or V type bracing made from angle steel or pipe |
| C/Z Purlin | Q235B C/Z section steel (C160-300 or Z160-300) |
| Roof/Wall Panel | Single colorful corrugated steel sheet or sandwich panel with EPS,
rock wool, glass wool, or PU insulation |
| Accessories | Skylight belts, ventilators, down pipes, gutters, doors, windows |
| Surface Treatment | Painting or hot dip galvanized |
| Package | Nude or packed on steel pallet in 40'HQ/OT containers |


Welding procedures:
TSIN undertake all welding procedures in accordance with GB
standard. Our dedicated Welding Inspectors are certified by the
government authority.
We perform non-destructive testing (NDT) in accordance with
contract documents and applicable welding codes. As part of this
process, we ensure that all inspections, test plans and quality
manuals are fully documented and maintained.
Tests we conduct include:
- Dimension check
- Visual examination
- Ultrasonic testing
Whether manufacturing a domestic structure, as well as industrial
building or commercial building, our precision fabrication reduces
time onsite and the associated labour costs.
At TSIN, we believe that the quality of our work is a defining
feature of our services. We are committed to providing exceptional
quality products and a service which is reflective of our
dedication to excellence at all stages of a project lifecycle.
We deploy extensive quality control measures to safeguard the
quality from beginning to end. This includes the inspections of all
materials prior to, and following fabrication.
TSIN employ highly trained and experienced professional fabrication
and welding staff, and because of this, we are able to deliver a
wide variety of fabrication services including a variety of steel
sections, designed to meet your specific project requirements.
- Measuring, cutting and welding the steel
- Placing the holes and cleats in the correct position
- Packaging and carefully loading in the right sequence
- Dispatching to site and erecting if required.

We implement rigorous quality control measures throughout the
project lifecycle, including:
- Material inspections before and after fabrication
- Precision measuring, cutting, and welding
- Accurate hole and cleat placement
- Proper packaging and loading sequence
- On-site erection when required
Company Profile
Qingdao Tsin Steel Structure Construction Technology Co., Ltd.
provides integrated solutions for steel structure workshops,
warehouses, and multi-storey buildings, including:
- Layout consulting and structural design
- Fabrication and delivery solutions
- Installation guidance
Our production capacity reaches 2,500 tons per month across
20,000m² of workshop space (30,000m² total factory area). We
operate complete production lines for H steel, C/Z purlins, and
various steel sheet and sandwich panels.

1. Who are we?
Based in Shandong, China since 2025, we serve clients in South
America, Africa, Oceania, and other global markets with a team of
5-10 professionals.
2. How do we guarantee quality?
Pre-production samples and final inspections before shipment ensure
consistent quality standards.
3. What products do we offer?
Steel Structure Warehouses, Workshops, Buildings, Poultry Houses,
and Prefab Houses.
4. Why choose us?
20+ years experience providing complete steel structure solutions
with integrated design, fabrication, and installation services.
5. What services do we provide?
We accept FOB, CFR, CIF, EXW delivery terms and T/T, L/C, Cash
payments in USD, EUR, AUD, CNY.