Building
In A
Box
Cold-Rolled Steel Frames. Ready to Order. Ready to Build.
A complete range of certified, pre-engineered cold-rolled steel buildings — with structural calculations and drawings already done. From a compact 3m × 8m workshop to a 5m × 16m agricultural span. Order the frames, add cladding, and erect with just a cherry picker.
Need a building?
Here’s your box.
Whether you’re a farmer needing a new agricultural shed, a business requiring storage, or a contractor wanting a workshop — you can now get a certified, pre-engineered steel building without the wait of a bespoke design. Choose your size, order the frames, and get building.
- Pre-engineered with full structural calculations
- Drawings ready — no design delays
- Erect using just a cherry picker
- Perfect for agricultural, storage & light commercial use
- Add your choice of cladding & doors
A product range
you can sell tomorrow.
Add the Building in a Box range to your portfolio and offer your customers a fast-turnaround steel building solution. With pricing already prepared and calculations done, you can quote, sell, and build without any of the back-and-forth of bespoke steelwork.
- Fixed-price frames — easy to quote with confidence
- Supply only, or supply & erect packages available
- Pair with your cladding for a complete building sale
- No specialist lifting equipment needed — cherry picker only
- Expand your product range instantly
From Order to
Overhead in Weeks
Because the engineering is already done, the time from order to delivery is dramatically shorter than a bespoke building.
Choose Your Size
Select from 15 standard footprints — 8m to 16m spans, 3m to 5m eaves heights, in 14m or 21m lengths. Roof pitches of 5°, 10° or 15°.
Get a Quote
Frames are fixed-price and pre-costed. We’ll confirm your wind loading zone and provide a full price for frames including UK mainland delivery.
We Manufacture
Cold-rolled SwageBeam frames are manufactured at our Daventry facility to your confirmed specification, with all calcs and drawings included.
Erect On Site
Frames can be assembled and erected using just a cherry picker — no heavy craneage or specialist installation teams required.
Available Frame Sizes
All sizes available in Low or High Wind Loading configurations. Prices shown are frame-only, ex works, and include UK mainland delivery. Add cladding, doors and accessories to complete your building.
3m Eaves Height
4m Eaves Height
5m Eaves Height
All prices are approximate, for budgeting purposes and include UK mainland delivery. Prices shown are frame only, excluding VAT, cladding, doors, foundations and installation. Low and high wind loading variants available — please confirm your site location for the correct loading specification. Extra bays available — ask for pricing. All buildings manufactured to BS6399.
What You Get in the Box
Every Building in a Box comes as a complete, pre-engineered steel frame package — everything you need to get the structure up. Finishing elements are supplied separately so you can spec them to suit your project.
Included
- ✓ Full steel frame
- ✓ All required bolts and fixings
Not Included
- ✗ Cladding
- ✗ Roofing
- ✗ Doors
No crane. No fuss.
Just a cherry picker.
The SwageBeam cold-rolled frame system is designed to be lightweight enough to handle without heavy lifting equipment. That means lower erection costs, faster builds, and buildings that are genuinely accessible to contractors without specialist craneage. A typical frame can be erected by a small crew in a matter of days.
UK Cold-Rolled Steel.
Done Properly.
Pre-Engineered & Certified
Every frame in the standard range comes with full structural calculations and drawings already prepared. No waiting for design — the engineering is done.
Cold-Rolled Precision
SwageBeam frames are cold-rolled at our Daventry facility, producing lighter, stronger sections than hot-rolled equivalents. Consistent quality, every time.
Price Certainty
Fixed-price frames mean you can quote with confidence. No design fees, no back-and-forth. Clear costs from the start.
Fast Lead Times
Because the structural design work is already complete, manufacture lead times are significantly shorter than bespoke steel buildings.
Complete Building Solutions
Add cladding, doors, windows and guttering to turn your frames into a watertight building. We can advise on compatible systems and suppliers.
Expert Technical Support
Our in-house structural engineering team is available to answer technical questions and support your project from enquiry to erection.
Talk to the Building in a Box Team
Whether you’re a farmer, a contractor, or a developer — tell us what you need and we’ll come back to you with a clear price.
Northamptonshire NN11 8NR
