What is the average lead time for production and delivery?

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

What payment terms are accepted for this order?

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

How is the steel structure packed for shipping?

The main steel frame is loaded without packing in 40'OT containers, while roof and wall panels are loaded in 40'HQ containers. Bulk cargo can be shipped in 20 GP or 40 GP containers as requested.

Shed

Name: Portal Frame Prefabricated Steel Structure Warehouse/Building/Hanger/Shed
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 729385505

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$30.00-100.00

200 Square Meters

Product profile

Customization

Available

Type

H-Section Steel

Steel Frame

Galvanized Tube

Model NO.

DG-PFW01

Bracing

Steel Purlin, Galvanized

Maintenance

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

Roof

Colorful Galvanized Steel Sheet

Wall

Colorful Galvanized Steel Sheet

Standard

GB, ASTM, DIN, JIS, AISI, BS

Trademark

Special Purpose 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

Residential Wall Structure

Connector

Application

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

Transport Package

Bulk

Specification

Q235, Q345

Trademark

Origin

China

HS Code

7308900000

Production Capacity

20000t/Year

Key features

50-Year Lifespan: Built with Q235/Q345 high-strength steel for long-term durability and stability.

Lightweight & Large Span: Reduces load-bearing requirements while significantly strengthening structural stability.

Energy Efficient Insulation: Wall and roof structures provide heat insulation and moisture-proof effects to save energy.

Multi-Standard Compliance: Meets GB, ASTM, DIN, JIS, AISI, and BS standards for global project requirements.

Customizable Design: Dimensions, materials, and finishes can be tailored to specific client needs and drawings.

Eco-Friendly & Recyclable: Uses few materials and is recyclable, reducing environmental pollution and costs.

Versatile Application: Suitable for workshops, warehouses, offices, storage, and residential structures.

High Production Capacity: Supplier offers 20,000 tons per year production capacity for reliable supply.

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 is the expected lifespan of the steel structure warehouse?

The structure is designed for a long life-span of up to 50 years, utilizing durable Q235/Q345 high-strength steel.

Q:Can the warehouse dimensions and materials be customized?

Yes, customization options include dimensions, materials, and finishes. We can also develop new parts according to customer drawings and detailed dimensions.

Q:What are the standard thickness options for roof and wall panels?

Single color corrugated steel sheets range from 0.326mm to 0.8mm thick. Sandwich panels with EPS, Rock Wool, or PU insulation have a thickness of around 50mm to 100mm.

Q:What is the minimum order quantity (MOQ) for this product?

The MOQ is 200 square meters. The size is defined by width, length, and eave height.

Q:What types of steel are used for the columns and beams?

Columns and beams are made from Q345 (S355JR) or Q235 (S235JR) steel, featuring straight or variable cross-sections with all-bolt connections.