Prefab construction contractor in Weifang, Shandong. We engineer…
Quality Prefab House
Clear-span steel portal frame interior of a completed industrial building
Product system

Pre-Engineered Steel Buildings With Clear-Span Portal Frames

Pre-engineered steel building systems with clear-span portal frames for warehouses, factories, workshops, hangars and farm buildings — designed, cut and drilled at the factory for fast bolt-up on site.

What problem we solve

Why Buyers Come to Us for This

Internal columns decide what a building can do for the next thirty years. Racking aisles, overhead cranes, turning circles and wingspans all suffer from a column in the wrong place — and site welding a frame to fix it burns programme and quality at the same time.

  • Clear spans to 36 m without internal columns
  • Hot-dip galvanised or shop-primed steel
  • Insulated roof and wall cladding options
  • Complete with purlins, bracing and bolts
Pre-engineered steel portal frame erected against an open sky
Who it is for

Buyers This System Suits

Logistics and storage

Distribution warehouses where racking layout sets the span.

Manufacturing

Workshops and factory bays carrying services and lifting gear.

Aviation and transport

Hangars and depots needing a wide unobstructed opening.

Agriculture

Farm buildings and livestock sheds on low-cost foundations.

How an order runs

From Brief to Handover

Design and quote

Share dimensions or a sketch. We return drawings, a spec sheet and a fixed price before you commit to anything.

Fabricate

Frames cut, welded and galvanised; panels and fittings assembled and checked against the approved drawings.

Flat-pack and ship

Units knocked down and loaded to your loading plan, photographed before the container is sealed.

Assemble on site

Bolt-together build from marked members and our drawings, with remote engineering support and supervision available.

Buyer questions

Steel Structures Questions

The questions buyers ask before committing to this system.

What is the maximum clear span?

Clear spans reach 36 m without internal columns. Longer spans are engineered on request against your loading.

How wide can the clear opening be?

The frame and bracing are engineered around the clear opening you specify, within a clear span of up to 36 m. Send the opening dimensions with your enquiry.

Planning a Steel Project

Send dimensions, a headcount or a sketch and we will come back with drawings and a fixed price.