Are you planning a house extension, self-build, or structural refurbishment in Cumbria? At J Johnstone Engineering, we specialise in the fabrication and installation of structural steelwork for residential and commercial projects — fully compliant with EN1090 Class 2 standards.
Here’s a recent example of how we delivered a double structural steel A-frame for a residential build in Silloth — from fabrication to final installation.
Project Overview
- Location: Silloth, Cumbria
- Client: Local building firm
- Scope: Fabrication and installation of a double A-frame structure with ridge beam
- Steel Type: S355 box section
- Finish: Hot-dip galvanised for corrosion resistance
- Compliance: Fully EN1090 Class 2 certified
This type of steelwork is ideal for loft conversions, pitched roof extensions, and new build residential projects.
Fabrication Details
All steel components were fabricated in-house using S355-grade box section steel. The ridge beam was manufactured from heavy-duty box section steel to meet the structural requirements of the roof span.
We followed EN1090 Class 2 certified processes including:
- Qualified welding and cutting
- Quality control and traceability
- Final hot-dip galvanising for durability in coastal conditions
On-Site Installation
Our experienced team delivered and installed the steelwork on site, working closely with the builder to ensure smooth integration with the overall construction schedule.
Installation included:
- Lifting and positioning of both A-frames with crane assistance
- Setting and securing the ridge beam to match roof pitch
- Final fixings completed to engineer’s specifications
- Passing building control inspections without delays
Who This Service Is For
Our structural steelwork services are perfect for:
- Builders and contractors managing house extensions or loft builds
- Homeowners and self-builders needing RSJs or steel frames
- Architects and structural engineers looking for reliable fabricators
- Refurbishment companies handling full property remodels
Serving Cumbria & The North West
We regularly fabricate and install residential and light structural steelwork across:
- Silloth
- Maryport
- Wigton
- Carlisle
- Workington
- And the wider Cumbria and North West region
Get a Free Quote Today
Planning a project that requires structural steel fabrication and installation in Cumbria? Contact J Johnstone Engineering today for a free quote or site visit.