What are the payment terms?

We accept LC, T/T, and D/P as terms of payment.

What are the main applications for this structure?

It is suitable for workshops, warehouses, office buildings, supermarkets, logistics centers, showrooms, hangars, and temporary offices.

How is the product packaged for shipping?

Products are naked loaded in shipping containers (20GP, 40HP, 40GP, 40OT) or as per specific requests.

Professional Designsteel Structual Fabrication Workshop/Warehouse

Name: Professional Designsteel Structual Fabrication Workshop/Warehouse
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 729630595

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$30.00-100.00

200 Square Meters

Product profile

Customization

Available

Type

Light Section Steel

Steel Frame

Steel Tube, Galvanized

Model NO.

DG-065

Bracing

Steel Purlin, Galvanized

Maintenance

Sandwich Panel, EPS, PU, Rock Wool, etc.

Roof

Colorful Steel Sheet, Sandwich Panel

Wall

Colorful Steel Sheet, Sandwich Panel

Standard

GB, ASTM, DIN, JIS, AISI, BS

Trademark

Quality Carbon Structural Steel and Alloy Structural Steel

Forming

Hot-Rolled Steel

Connection Form

Bolt Connection

Member

Steel Beam

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q275

Residential Wall Structure

Top Wall Beam

Application

Steel Workshop, Steel Warehouse

Transport Package

Bulk

Specification

Q235, Q345

Trademark

Origin

China

HS Code

7308900000

Production Capacity

20000ton/Year

Key features

Customized Design: Prefabricated and customized design based on client drawings and dimensions.

Easy Construction: Time-saving, labor-saving, and easy to install and disassemble without special tools.

Durable Materials: High-strength steel frames (Q235/Q345) with strong corrosion and wind resistance.

Flexible Layout: High space efficiency suitable for workshops, warehouses, and large-span structures.

Thermal Insulation: Options include EPS, rock wool, PU, or fiberglass sandwich panels for heat/cold insulation.

Low Foundation Cost: Lightweight structure reduces demands on base structure and foundation costs.

Multi-Climate Adaptability: Designs account for wind speed, snow load, rain, and earthquake grades.

Eco-Friendly: Non-polluting construction with low maintenance costs and reusable components.

Company profile

Qingdao Doublegrand Metal Products Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2003-07-29Nearest Port: Qingdao PortAverage Response Time: >24hTerms of Payment: LC, T/T, D/PInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQingdao Doublegrand Metal Products Co., Ltd. is identified primarily as a manufacturer/factory of steel structures and related prefabricated building products, although another record describes the company as a trading company. The supplier states that it has exported to more than 30 countries across six continents and began exporting in 2003. Its stated capabilities include design, manufacturing, delivery, installation, and after-sales service, with production equipment, two production lines, ISO 9001 certification, and dedicated quality-control and R&D personnel. It reports substantial annual production capacity and that 90% of sales are exports. The evidence supports strengths in certification, production, customization, export experience, and service scope. Financial credibility cannot be assessed because the available registered-capital information is excluded from consideration and no other financial evidence is provided.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory producing steel structures, warehouses, workshops, prefabricated buildings, and related products. However, a separate company-information record describes its company nature as a trading company, creating a classification inconsistency that prevents an entirely unqualified assessment.

CertificationsThe supplier reports holding ISO 9001 certification and also states that Asia Inspection, SGS inspection, and other third-party inspections are accepted. This is explicit evidence of a formal quality-management certification and willingness to accommodate external inspection.

After-Sales capabilityThe supplier states that it provides one-stop service covering design, manufacture, delivery, installation, and after-sales service, and describes a customer-oriented professional relationship. These statements directly support the existence of an after-sales service offering, although no detailed service standards or response metrics are provided.

R&D capabilityThe supplier reports that it can develop designs independently, provide suitable proposals, and combine sales and engineering personnel to create building models and designs. It also reports 6–10 years of R&D engineer experience and advanced CNC equipment, supporting design and engineering capability, but not necessarily product or process innovation beyond customization.

Production capacityThe supplier reports more than 3,000 tons of monthly capacity, annual capacity of 200,000 tons for steel structures, 200,000 meters of galvanized wall and roof cladding, and 30,000 tons of galvanized C&Z purlines. It also reports two production lines, CNC and machining equipment, inspection at every stage, and pre-assembly before delivery, providing explicit evidence of substantial production capability.

Customization capabilityThe supplier states that it manufactures strictly according to customer drawings and requirements, can design suitable proposals independently, and performs manufacturing and inspection according to drawings. These statements directly demonstrate both drawing-based production and supplier-supported design customization.

Client casesThe supplier states that it has exported to more than 30 countries across six continents, has more than 10 years of experience, and began exporting in 2003. This supports broad international delivery experience, but the slices do not identify specific customers, projects, or independently verifiable case details.

Product Q&A

Q:What materials are used for the steel structure?

Steel frames use Q235 or Q345 hot-rolled or welded H-style steel. Panels include color steel sheets or sandwich panels (EPS, rock wool, PU) of 50mm, 75mm, or 100mm thickness.

Q:Can the design be customized?

Yes, we offer prefabricated and customized designs based on your drawings, dimensions, and specific requirements for size, layout, and materials.

Q:What is the installation process like?

The structure is easy to install and disassemble without special tools. It is safe, time-saving, and labor-saving, allowing installation in any weather.

Q:What information is needed for a quotation?

We need location, size (L*W*H), wind/snow/earthquake loads, insulation needs, door/window quantities and sizes, and crane parameters if applicable.

Q:What are the lead times for production?

Peak season lead time is 1-3 months, while off-season lead time is approximately one month.