Industrial Unit & Factory Steelwork
The steel frames behind factories, workshops and industrial units. We design, fabricate and install portal-frame and multi-bay steel structures to BS EN 1090 Execution Class 2.

















Steel that works around the process.
Industrial units and factories need a steel structure that suits how the building is used: clear spans for production lines and machinery, gantry steel where loads have to be lifted, and mezzanines for offices or storage. We design, fabricate and install the portal frames, multi-bay structures, crane gantry support and secondary steel that make up an industrial building, to BS EN 1090 Execution Class 2, erected by our own teams. Whether it is a single-bay workshop or a multi-bay production hall, the steel is fabricated to your engineer's design and installed to programme.
The frame for a working building.
Portal and multi-bay frames, crane gantry steel, plant support and secondary steel, installed by our own teams.
Portal and multi-bay frames
Single and multi-bay steel frames for production halls, workshops and light industrial units.
Crane gantry steel
Support steel and gantry beams for overhead cranes and lifting equipment, fabricated to the crane loads.
Plant and mezzanine support
Steel for mezzanine offices, plant decks and machine support inside the unit.
Secondary steel
Purlins, rails, bracing and cladding support that complete the frame.
Craneage and erection
Planned and installed by our own teams to suit a live or a new-build site.
Steel built around how the unit will be used.
A factory frame has to work around production: clear spans, crane loads, plant support and future flexibility. We fabricate the portal and multi-bay frames, gantry and plant-support steel to BS EN 1090 Execution Class 2, and install with our own teams, so the structure fits the process it is built for.
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Project & sample images.
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Why industrial steel is built around use.
A factory frame has to suit clear spans, crane loads and plant, not the other way round.
About UIS-
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Made to the process
Industrial steel is fabricated around clear spans, crane loads and plant, so the building works for what happens inside it.
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Single or multi-bay
We fabricate frames from a single-bay workshop to a multi-bay production hall, to your engineer's design.
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BS EN 1090 Execution Class 2, UKCA marked
Fabricated to the execution class your engineer specifies, with the declaration of performance.
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Our own erection teams
Installed by the firm that fabricated it, planned around a live or a new-build site.
"I've worked with UIS for several years on some high profile and very complex projects. Their attitude and work ethic are second to none - providing high quality services and products which are delivered safely and on time every time. Overall they are a pleasure to do business with and wouldn't hesitate recommending UIS for any steelwork or metalwork packages."
Questions clients ask us.
Yes. We fabricate and install the gantry beams and support steel that carry overhead cranes and lifting equipment. The crane equipment itself is supplied by a crane specialist; we provide the structural steel it runs on.
Yes. We fabricate single and multi-bay portal frames for production halls, workshops and industrial units, to your engineer's design.
Yes. Much of this work is on operating industrial sites, so we plan the access and sequence carefully and install with our own teams to keep disruption down.
BS EN 1090 Execution Class 2, UKCA marked, welded by coded welders to BS EN ISO 9606, with the declaration of performance.
We are based in South Yorkshire and design, fabricate and install across the UK with our own teams.
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