Prefab metal office buildings
Prefab Metal Office Buildings
We manufacture a metal office building as a prefab kit: steel frame, roof and wall panels and accessories, with foundation and erection done locally. Clear span depends on the project: single-span frames are standard to 60 m and engineered up to 100 m. Projects start at 3,000 m².
Send the width, length and eave height, the site country and whether you want a mezzanine, and we return a free layout, specification and itemized quote for your office frame.
- Floor area
- 5,000 m²
- Listed on China’s NEEQ · 834422
- Since 1997
- AISC certified
- ISO 9001 · 14001 · 45001
- 100+ countries and regions
Steel Frame Office Buildings: Frame Specifications
Steel frame office buildings from Xinguangzheng share the frame ranges in the table below, which are parent-product ranges and not a table of typical office sizes. Send the intended use and dimensions with your request, and the quote returns the layout, specification and itemized cost; EPS, rock wool or PU sandwich panels are optional for roof and walls.
| Item | Standard | Optional upgrade |
|---|---|---|
| Clear span | Single span up to 60 m | Up to 100 m by project-specific engineering |
| Eave height | 6–12 m | Higher on request, set per project |
| Bay spacing | 6–9 m | Not published for office layouts |
| Primary frame | Q355B welded H-section | Q235B or Q460 |
| Purlins | Galvanized Z or C purlins | Closer purlin spacing in high wind and snow zones |
| Roof and wall | 0.5 mm profiled steel sheet | EPS, rock wool or PU sandwich panel |
| Corrosion protection | Sa2.5 blast cleaning plus epoxy zinc-rich primer | Hot-dip galvanizing |
| Design loads | Engineered to the code that applies at your site | Heavier frame in high wind and snow zones |
| Crane provision | Quoted on request | Provision for a 5 t, 10 t or 20 t overhead crane |
| Mezzanine | Added to the layout when required | Mezzanine floor |
| Design life | 50-year service life | Maintenance as set out in the maintenance manual |
Modern Metal Office Building Layouts: Single Span, Multi-Span and Mezzanine
The layout of a metal office building starts with width. A single span with no interior columns is standard to 60 m, while a multi-span frame places interior column lines across the width. Single spans beyond 60 m, up to 100 m, are engineered for the project. Send the intended use with your request, and the quote returns the layout; this page does not tabulate office sizes.
Single clear span
No interior column crosses the width of the frame, so the space under the roof stays open.
Multi-span
Interior column lines divide the width into several spans, and the layout that comes with your quote shows where they fall.
Mezzanine
A mezzanine floor can be added inside the steel frame; say whether you need one when you send your request.
Interfaces to confirm
- Foundation
- Buyer’s local contractorColumn base reaction data is provided for the foundation design
- Erection
- Not in the quoteAn installation manual and free remote guidance are provided, and on-site guidance is an option
- 3D model approval
- Before cuttingThe Tekla 3D model goes to you for approval, and steel is cut only after you approve it
Metal Office Building Cost: What Moves the Quote
The quote for a metal office building moves with the cost drivers below, so this page lists them and publishes no rate. Projects under 3,000 m² are not a fit for this kit supply. Neither are turnkey projects that need the supplier to build the foundation and erect the building, and a locally contracted building is simpler for them. Insulation, a crane track system, facade design and on-site erection guidance are options, and anchor bolt supply is confirmed in your quote.
| Cost driver | What moves the number |
|---|---|
| Clear span | A single span up to 60 m is standard, and going wider means a project-specific design up to 100 m |
| Wind and snow loads | High wind and snow zones call for a heavier frame and closer purlin spacing |
| Local code | The code of the destination country and the project engineer sets the design loads |
| Insulation scheme | Roof and wall options run from 0.5 mm profiled sheet to EPS, rock wool or PU sandwich panel; a cold storage building costs more than a standard warehouse because of insulated panels and refrigeration, and is quoted per project |
| Door and window count | The quote follows the number of doors and windows |
| Mezzanine | A mezzanine floor added to the layout adds to the scope |
Included in the quote
- Primary and secondary steel
- Roof and wall panels
- Gutters and downpipes
- Bolts, with anchor bolt supply confirmed in your quote
- Shop drawings and installation manual
- Export packing and loading plan
Not included
- Foundation and site works
- Site erection
- Ocean freight, insurance and inland transport
- Destination clearance, duties, taxes and permits
Steel Office Building Design Codes and Loads
A steel office building from Xinguangzheng is designed to the code set by the destination country and the project engineer. The four codes below are design codes in common use, not certificates.
- AISC 360
- EN 1993
- AS 4100
- GB 50017
Loads follow the code that applies at your site, and AS/NZS 1170 is the design loading standard for Australia and New Zealand. High wind and snow zones get a heavier frame and closer purlin spacing. The final design of structure, services and civil works is confirmed by the local professionals for your project.
Documents you receive
- Layout, specification and itemized quoteFree, and sent first.
- 3D modelGoes to you for approval, and steel is cut only after you approve it.
- Shop drawingsSupplied with the shipment for your erector.
- Installation manual and weld test reportThe manual, the ultrasonic testing report and photos come with the order.
Steel Office Building Manufacturing and Quality Control
We manufacture the frames under an ISO 9001:2015 quality system, in four factories with 12 production lines and 150,000 m² of factory space, at an annual capacity of up to 150,000 tonnes of steel structures. Our steel structures are manufactured by Qingdao Xinguangzheng Steel Structure Co., Ltd. (NEEQ: 834422). The company holds EN 1090 (CE), EAC (GOST 23118-2019), ISO 14001 and ISO 45001 certification and is certified by the Canadian Welding Bureau to CSA W47.1 Division 1. It also holds China’s Grade I qualifications for steel structure manufacturing and steel structure engineering contracting, and certificate copies are available on request.
Cutting and welding
Plate is cut on laser cutting machines and welded with welding robots, using Q355B welded H-section for the main frame.
Weld testing
Main welds go through ultrasonic testing (UT), and coating thickness is measured.
Blast and prime
Steel is blast cleaned to Sa2.5 and primed with epoxy zinc-rich primer on an automated coating line, and hot-dip galvanizing is optional.
Check before final payment
The UT report and photos reach you before you pay the balance, and third-party inspection is welcome.
Manufacturing process
How an Office Building Order Moves from Brief to Shipment
Requirements
Send width, length and eave height, site country and city, single or multi-span, and any insulation, door, window and mezzanine needs.
Quotation
A free layout, specification and itemized quote comes first, and it states what is in and out of the supply.
Design and fabrication
The Tekla 3D model goes to you for approval, and cutting starts only after approval. Production takes 15–40 days depending on tonnage, confirmed in your quote.
Export and support
Steel goes on steel pallets with an export packing and container loading plan, shipping from Qingdao Port, about 1.5 hours from the factory. Transit time is confirmed for your destination port, a whole project usually takes 4–12 weeks, and the foundation and site erection stay with your local contractor.
Metal Office Building FAQ
What is a metal office building, and when is a simpler option enough?
A Xinguangzheng office building is a prefab steel kit of primary and secondary steel, roof and wall panels and accessories, exported to your project. If the project is under 3,000 m², or you want one supplier to build the foundation and erect the building under a turnkey price, a locally contracted building is simpler.
What decides the price of a metal office building?
Clear span, wind and snow loads, local code, insulation scheme, door and window count and any mezzanine all move the price of an office frame. This page publishes no rate per square metre; the free quote returns a layout, a specification and an itemized cost breakdown.
What does a metal office building quote include, and what is left out?
The quote covers primary and secondary steel, roof and wall panels, gutters and downpipes, bolts, shop drawings, the installation manual, export packing and a loading plan, with anchor bolt supply confirmed in the quote. Foundation, site erection, freight, insurance, destination clearance, duties, taxes and permits are not included.
Can a steel frame office building have more than one floor?
A mezzanine floor can be added inside the steel frame; say whether you need one when you send your request. This page states no floor count; send the intended use and dimensions, and the quote returns the layout, specification and itemized cost.
What is the smallest office building project you quote?
Projects start at 3,000 m², so a small site office or cabin below that size is not a fit for this supply. Between that floor and larger projects, send your width, length and eave height with the destination country, and the quote shows the scope for your building.
How long does an office building take to produce and ship?
Production takes 15–40 days depending on tonnage, confirmed in your quote, and a whole project usually runs 4–12 weeks from consultation to local erection. Steel leaves from Qingdao Port, about 1.5 hours from the factory. Sea transit days depend on your destination port and are confirmed in the quote.
How is payment split on an office building order, and can the welds be checked before the balance?
Payment is by T/T or L/C, with a 30% deposit and the remaining 70% paid before shipment. Before the balance is due, you receive the ultrasonic testing (UT) report on the main welds with photos, and third-party inspection is welcome.
Who builds the foundation and erects the office frame?
Your local contractor designs and builds the foundation and erects the frame, because site work is outside the quote. Column base reaction data for the foundation design, an installation manual and free remote guidance are provided, and on-site erection guidance is an option.
Has Xinguangzheng supplied office buildings before?
Xinguangzheng has supplied an office building in the Solomon Islands and an office attached to a workshop in Algeria. Project area and year are not published on this page, so name the building type and destination country you are considering when you send your request, and the details can be discussed then.
Office building quote
Get a Metal Office Building Quote
To compare metal office building options, start with the six details below, and we return a free, no-obligation quote with a layout, specification and full cost breakdown. Email james@steelstructurechina.com or message us on WhatsApp with your dimensions and destination country.
- 1Building use — What the building will be used for.
- 2Dimensions — Width, length and eave height, in m or ft.
- 3Site location — Country and city of the site.
- 4Single or multi-span — Whether interior columns are acceptable.
- 5Insulation, doors and windows — Roof and wall insulation, and the door and window count.
- 6Mezzanine — Whether you need a mezzanine, if any.