China Prefabricated Steel Structure Building with Up to 30 Meters Span Length, Thermal and Sound Insulation, and Customizable Design for sale

Prefabricated Steel Structure Building with Up to 30 Meters Span Length, Thermal and Sound Insulation, and Customizable Design

Name: Prefabricated Steel Structure Building with Up to 30 Meters Span Length, Thermal and Sound Insulation, and Customizable Design
Brand: Sichuan Shunyao Supply Chain Management Co., Ltd.

Price Negotiable

Price: $1300-3000

MOQ: 1 PCS/20 Tons

Delivery Time: 30-60 Days

Brand: Sichuan Shunyao Supply Chain Management Co., Ltd.

Product Description

Prefabricated Steel Structure House, Villa, Office and Dormitory

Prefabricated Steel Structure Buildings — House, Villa, Office, School, Dormitory

We build prefabricated steel structures for houses, villas, offices, schools and dormitories using H-section columns and beams, channel purlins and bracing, with floor, wall and roof panels. Frames are cut to drawing in our workshop and bolted together on site.

Steel Grades and Standards

Main frame: H-section steel — Q235B, Q355B, A36, S235JR, S355JR or SS400.
Standards: GB, ASTM, JIS, AISI, DIN or BS, as the drawing specifies.
Secondary framing: British standard PFC (parallel flange channel), straight-leg series, used for purlins, girts and storey framing. Cold-formed C sections (Q235B / Q355B, hot-dip galvanized) are used for roof purlins.
European channels (UPN / UPE) and German U-sections are also available where a project calls for them.

Choosing the Grade

Which grade to use depends on the job, not on preference:

Temporary works: Q235B hot-rolled H-beam. Lower cost, quick to install.
Permanent structure: Q355B or S355JR H-beam with anti-corrosion treatment — paint or galvanizing.
International projects: specify to ASTM or EN — A36, S235JR or S355JR — and check that the connection detail (welded or bolted) suits the grade.

Send us the load conditions, span, site exposure and how long the building must last, and we will settle the grade with you.

Fabrication and Cutting

Members are cut to drawing, then drilled, welded and finished in our workshop. Laser cutting is used where tolerances matter: beam and channel cutting, base plates, connection plates and small parts. Special components can be made from a customer drawing.

Building Systems

Frame: H-section columns and beams, all-bolted
Purlins and girts: PFC channels, or cold-formed C / Z sections galvanized for humid sites
Floors: steel deck with concrete topping for load-bearing floors, or panel floors for lighter buildings
Walls and roof: sandwich panels (EPS, rock wool or PU) or color steel sheet
Stairs: steel stairs between storeys
Doors: swing or sliding
Windows: aluminum or PVC

Where the Sections Are Used

Buildings: houses, villas, offices, schools, dormitories and staff quarters
Industrial: plant frames, crane beams and roof trusses
Infrastructure: bridge girders, temporary supports and falsework
Equipment: machine bases and conveyor supports
Energy and mining: galvanized racks for PV panels, and mine shaft guides
Excavation: soldier pile walls for deep excavation

Prefabricated steel structure building example

Design Loads

The frame is sized to the site: wind load, snow load and seismic zone to your local code. Service life of 50 years for the main frame with proper surface treatment. Tell us the loads at the start and the sections will not need revising later.

What We Need to Quote

Send as many of these as you have:

Building type and use — house, office, dormitory, school
Plan — length × width, number of storeys, eave or storey height
Loads — wind speed, snow load and seismic level at the site
Steel standard and grade — GB, ASTM or EN, and the grade if the drawing names one
Floor and wall build-up — panel type and thickness, and whether floors carry load
Doors and windows — quantity and sizes

No drawings? Our engineers draft the layout from these points. Design is free.

Production and Delivery

Fabrication runs in our Chengdu workshop. Stock sections ship in a few days; fabricated buildings take 30-60 days from approved drawings. Main frames load in 40ft open-top containers; panels are film-wrapped and load in 40ft high-cube containers.

Specifications

Item	Specification
Building types	House, villa, office, school, dormitory, staff quarters
Main frame	H-section steel: Q235B, Q355B, A36, S235JR, S355JR, SS400
Standards	GB, ASTM, JIS, AISI, DIN, BS
Secondary framing	British PFC parallel flange channel (straight-leg); cold-formed C / Z sections
Purlins	Q235B / Q355B C or Z sections, hot-dip galvanized
Other sections available	UPN / UPE European channels, German U-sections
Floors	Steel deck with concrete topping, or panel floors
Walls & roof	Sandwich panel (EPS / rock wool / PU) or color steel sheet
Doors / Windows	Swing or sliding door; aluminum or PVC window
Fabrication	Cut to drawing, drilled, welded; laser cutting for tight-tolerance parts
Service life	50 years for main frame with proper surface treatment
MOQ	1 ton (reference page value)
Lead time	Stock sections: days; fabricated buildings: 30-60 days
Packing	Main frame in 40ft open-top; panels in 40ft high-cube
Place of origin	Chengdu, Sichuan, China
HS Code	7308900000