How is the product packaged and shipped?

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

Do you provide installation support?

Yes, we provide full service including production, shipment, and detailed installation guidance to ensure high quality and low cost.

What standards do your steel structures comply with?

Our products comply with international standards such as GB, ASTM, DIN, JIS, AISI, and BS.

Steel Structure Warehouse/Light Steel Workshop

Name: Steel Structure Warehouse/Light Steel Workshop
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 729029695

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$30.00-100.00

200 Square Meters

Product profile

Customization

Available

Steel Frame

Galvanized Tube

Bracing

Steel Purlin, Galvanized

Model NO.

DG-22

Maintenance

Sanwich Panel, EPS, PU, Rock Wool, Glass Wool

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

Welded Connection

Member

Steel Beam

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Application

Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part

Transport Package

Bulk

Specification

Q235, Q345

Trademark

Origin

China

HS Code

7308900000

Production Capacity

20000t/Year

Key features

Free Custom Design: Expert team provides free design services based on your dimensions and requirements.

High-Quality Materials: Uses galvanized tubes, H/I sections, and various insulation panels like EPS, PU, and rock wool.

Comprehensive Service: Full support including production, shipment, and installation guidance for global clients.

Flexible Connection: Offers welded connections and customizable column/beam options for structural integrity.

Global Export Experience: Exporting since 2003 to markets including North America, Europe, and Southeast Asia.

Adaptable Structure: Suitable for workshops, platforms, fabricated houses, and structural roofing applications.

Crane Integration: Designs can accommodate internal cranes based on specified lifting weight and height.

Standard Compliance: Manufactured according to international standards including GB, ASTM, DIN, JIS, and BS.

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:Do you provide design services if I don't have drawings?

Yes, our excellent design team will freely design the light steel structure warehouse or workshop based on your provided dimensions, climate data, and usage requirements.

Q:What information is needed for a custom design?

Please provide dimensions (length, width, height, eave height, roof pitch), door/window details, local climate data (wind, snow, seismic loads), insulation preferences, and crane parameters if applicable.

Q:What insulation materials are available?

We offer various insulation options including EPS, fiber glass, rock wool, PU sandwich panels, and standard steel sheets for roofs and walls.

Q:What are the payment terms?

We accept LC (Letter of Credit), T/T (Telegraphic Transfer), and D/P (Documents against Payment).

Q:What is the average lead time for production?

The lead time is approximately one month during the off-season and 1-3 months during the peak season.