
AGRICULTURAL STEEL BUILDINGS SCOTLAND
Heavy-duty steel portal frame buildings engineered explicitly for the Scottish agricultural sector. From general-purpose machinery stores and dry crop barns to hay sheds and custom portal frames. Fabricated at our Penicuik base, we offer full turnkey design and CSCS-certified erection across Edinburgh, Midlothian, and the Lothians, or premium pre-engineered kit supply delivered nationwide.
HOT-DIP GALVANIZED
Every structural frame option includes high-durability hot-dip galvanizing to BS EN ISO 1461 for decades of rust protection.
PDR PLANNING ASSIST
We provide complete CAD drawing packages and SER calculations to streamline Prior Notifications and agricultural warrants.
PRECISION TAKE-OFFS
Fast 24-hour pricing from structural drawings. Our drafting office creates exact, optimized steel layouts.
UKCA EXC2 CERTIFIED
Our steel workshop operates under Execution Class 2 standards, ensuring your farm structures are fully legal and insurable.
Technical Drawing Desk
ESTIMATING SLA: GUARANTEED 2-HOUR TURNAROUND (MON-FRI, 8AM - 5PM)
LOCAL turnkey ERECTION VS. NATIONWIDE KIT SUPPLY
Two Dynamic Paths For Scottish Landowners
We split our agricultural operations to offer maximum value: localized high-margin turnkey installation where we have physical crews, and nationwide flat-pack delivery for independent self-builders.
CSCS Turnkey Erection (Local Focus)
Operating across **Edinburgh, Midlothian, East Lothian, West Lothian, and the Scottish Borders**, our in-house CSCS (Construction Skills Certification Scheme) certified steel crews handle the entire build lifecycle. We manage structural fabrication in Penicuik, site delivery, safe hoisting, portal framework assembly, Z-purlin installation, and complete cladding envelopes.
- ✓ Full Structural Liability Covered
- ✓ Penicuik-Based Rapid Deployment
- ✓ Full Risk Assessments & Method Statements
- ✓ Fully Compliant to Local Building Standards
Pre-Engineered Kits (Scotland-Wide)
If you have your own groundwork and erection contractors, we fabricate and deliver complete precision-engineered portal frame steel kits directly to your farm. Manufactured to your exact dimensions at our Penicuik base, our kits include all columns, rafters, brace members, structural bolts, holding-down bolts, Z-purlins, and comprehensive assembly drawings.
- ✓ Precision Flat-Pack Transport
- ✓ Complete Assembly Structural Blueprint
- ✓ Wind & Snow Postcode Calcs Included
- ✓ Delivered Direct to Farm or Estate Gate
Unified Groundworks, Concrete & Steel Group Packages
By consolidating your agricultural project under our unified Lothian Construction Network, we eliminate sub-contractor friction, double-handling fees, and coordination delays. Land your entire agricultural project with a single point of contract.
01. Groundworks & Concrete Pours
In partnership with Edinburgh Concrete, we handle structural excavation, drainage layouts, and heavy-duty reinforced concrete slab pours. Designed to support high-tonnage agricultural vehicles, grain loads, and heavy silage pressures.
02. EXC2 Steel Portal Framing
Fabricated directly in our Penicuik workshop to strict Execution Class 2 (EXC2) structural standards. Every column, rafter, and purlin is hot-dip galvanized to BS EN ISO 1461, ensuring 30+ years of ammonia-resistant, rust-free protection.
03. CSCS Erection & Envelope Cladding
Our direct CSCS-certified fitting teams erect the galvanized framework and fit the full cladding envelope. Including single-skin or insulated plastisol sheets, roof skylights, and automated roll-up doors, managed by a single unified project desk.
💡 Multiple Business Consolidation Advantage: Standard contractors charge separate mobilization fees, management markup, and suffer scheduling gaps. Our unified concrete, civils, steel, and joinery package cuts overheads by up to 18% and guarantees a 25% faster handover.
ENGINEERED FOR THE UNCOMPROMISING SCOTTISH CLIMATE
Scottish farming requires buildings that can handle more than just heavy machinery. Exposure to extreme coastal wind gusts, heavy hill snow loading, and corrosive agricultural atmospheres (livestock ammonia, wet feed, silage runoff) dictates that structural shortcuts are not an option.
Local Wind & Snow Calculations (BS EN 1991)
We calculate wind and snow loads based on your exact postcode coordinates and ground elevation, ensuring the structural steel columns and roof pitches are built to withstand localized winter conditions without compromise.
Corrosion Resistance via Hot-Dip Galvanizing
Exposure to moisture and ammonia can degrade standard primer steel in under a decade. We recommend Hot-Dip Galvanizing (BS EN ISO 1461) inside and out, guaranteeing a maintenance-free structure for 30+ years on livestock and crop holdings.
Full Legal UKCA Execution Class 2 Compliance
Under UK building control, structural agricultural buildings require Execution Class 2 certification. Fabricating steel without certified procedures or UKCA marks is illegal and voids farm insurance. Our workshop ensures 100% compliant and fully insurable structures.

Direct Steel Supply - No Middlemen
We fabricate every portal column, rafter, and purlin adapter directly inside our modern workshop in Penicuik, Midlothian. By operating a direct-to-farm model, we cut out intermediate supply agencies, ensuring rapid quote turnaround and highly competitive trade pricing.
AGRICULTURAL PORTAL FRAME SECTORS
Do you supply and erect portal frame agricultural sheds in Scotland?
Answer Summary: Yes. Forge & Frame designs, fabricates, and erects heavy-duty steel portal frame agricultural sheds and barns across Central Scotland, Midlothian, Fife, and the Borders. For locations further north (such as Aberdeenshire or the Highlands), we manufacture and ship complete pre-engineered portal frame building kits, including S355JR structural members, cold-rolled purlins, cladding sheets, bolts, and detailed assembly drawings.
We prioritize standard, high-efficiency portal frames that ensure rapid turnarounds and predictable cash flows.
MACHINERY SHEDS & STORES
Secure, wide-access portal frames designed with custom roller shutter bays and structural clear-spans for tractors, combines, and attachments.
HAY & STRAW STORAGE BARNS
Open-fronted or fully enclosed portal structures engineered for maximum ventilation, natural airflow, and safe, dry bale storage.
GENERAL PURPOSE FARM BUILDINGS
Highly flexible, multi-functional steel frame outbuildings suited for estate maintenance, workshops, dry storage, and secure chemical handling.
Design Your Own Portal Frame Barn Live in 3D
Don't wait days for an estimator. Use our interactive 3D drafting suite to configure your bays, eave heights, spans, and doors. See live steel weight calculations and private-market contract value estimates in real-time.
How does Scottish planning and Permitted Development (PDR) work for farm sheds?
Answer Summary: In Scotland, agricultural buildings on holdings of 0.4 hectares or more often qualify for Class 6 Permitted Development Rights (PDR) without requiring full planning permission, provided the ground area does not exceed 465 square meters and is at least 25 meters from public roads. However, landowners must submit a Prior Notification to their local council (e.g. Midlothian Council) before starting excavation, backed by technical CAD drawings.
In Scotland, general-purpose agricultural structures on registered holdings of 0.4 hectares or more often fall under **Class 6 Permitted Development Rights (PDR)**. This means full planning permission is frequently unnecessary, provided the building complies with specific rules regarding dimensions, location, and distance from public roads.
PDR Dimension Thresholds
Under Class 6 PDR, agricultural buildings must not exceed 465 square meters in ground area. The height of the structure must not exceed 12 meters, and it must not be located within 25 meters of a metalled public road.
Prior Notification Process
Even if a farm shed qualifies for Permitted Development, landowners must submit a **Prior Notification** to the local planning authority (e.g., Midlothian or East Lothian Council) prior to starting excavation or erection.
CAD Drawings & Calc Submittals
FF Steel provides complete CAD layout drawings, elevation views, and structural calculations (SER) to support your Prior Notification submission, ensuring local building control approvals without unnecessary delays.
FF STEEL QUALITY SPECIFICATIONS
- Steel GradeS275 & S355 Structural Grade
- Execution ClassEXC2 - UKCA Certified
- Protective CoatingHot-Dip Galvanized (BS EN ISO 1461)
- Purlins & RailsGalvanized Z-Purlins
- Erection Crew100% CSCS Registered Installers
- Quote TurnaroundGuaranteed 24 Hours (Drawing Desk)
RECENT
WORKS.

75FT Clear-Span Grain Store
Kelso, Scottish Borders

Aesthetic Timber-Clad Riding Arena
Balerno, Midlothian

Heavy Portal Frame Livestock Housing
Biggar, South Lanarkshire

Bespoke Structural Extension Spine
Morningside, Edinburgh

Multi-Storey Commercial Portal Hub
Edinburgh Park

Industrial Warehouse Expansion
Leith Docks, Edinburgh

Heavy Galvanized Structural Portal
Haddington, East Lothian

Biomass Fuel Storage Barn
Dunfermline, Fife
COMMON AGRICULTURAL QUESTIONS
Q: What is your typical turnaround time for farm shed fabrication?
A: For standard portal frame sizes (e.g., 24m x 12m x 4.5m), we can complete structural steel fabrication and hot-dip galvanizing within 3 to 4 weeks from technical drawing approval.
Q: Do you offer full envelope cladding solutions?
A: Yes. Along with fabricating and erecting the steel portal frames, we can supply and fit a complete cladding package including single-skin metal sheeting, composite insulated panels, roof skylights, and insulated roll-up warehouse doors.
Q: Can you design a portal frame building to sit on concrete retaining walls?
A: Absolutely. Many machinery stores and general-purpose sheds incorporate concrete panel retaining walls. We can pre-calculate rafter and column connections to mount securely onto concrete panel brackets or vertical cast-in retaining plates.
Q: Are structural calculations included for building warrants?
A: Yes. Every pre-engineered kit or erected portal structure we deliver includes postcode-specific BS EN 1991 wind and snow load calculations and technical drawing submittals ready to submit to building control.
Q: Where is your steel fabricated?
A: We do 100% of our layout design, structural cutting, weld preps, and structural steel fabrication in our modern facility in Penicuik, Midlothian. Customers are welcome to visit our shop and review their frames in progress.