Description

Made-to-measure steel staircases, supplied as a bolt-together kit for self-assembly or fitted by our own site team. External stairs, fire escapes, loading dock steps, access platforms, garden and balcony access.

The price on this page is a guide for a straightforward galvanised stair at the heights listed. Almost every staircase we make is tailored to the job, so send us your details for a proper quotation.

UKCA certified — and why that matters

Our staircases are UKCA marked and certified to BS EN 1090-2, which is a legal requirement for structural steelwork and one that a surprising number of suppliers do not meet.

It matters on domestic work as much as commercial. If your project has to be signed off by building control — and on a new build it will be — the staircase certification forms part of that. It is the kind of thing that surfaces late, when the stair is already in.

They are designed to comply with Approved Document K. Our staircase building regulations guide sets out rise, going, headroom, guarding and the open riser rules in full.

How it is built

Flat bar stringers, pre-drilled to take the balustrade or handrail you have chosen — so it lines up on site rather than being drilled in position
Chequer plate treads as standard, with composite decking infills or open mesh available as optional extras
Twin key clamp handrails for commercial access, plain metal railings, or a glass balustrade

Treads

Chequer plate is our standard, and it is what the price on this page is based on — hard wearing, non-slip, and nothing to do to it once it is up. For most external and works stairs it is all you need.

Composite decking infills are an optional extra, priced on top of the base stair. They give a warmer, more domestic look and are usually chosen for a garden or balcony stair where the steps are on show.

Open mesh is the industrial finish — it lets water, debris and snow fall through instead of sitting on the step, which is why it suits exposed external steelwork and fire escapes. Ask us for pricing.

Our steel staircase buying guide goes through every tread option, including solid oak and glass, and what drives the price.

Finish

Standard is hot dip galvanised — that is what stops it rusting, and paint alone will not do the same job.

Powder coating is an optional extra, priced on top of the galvanised stair — but for anything domestic it is what we would recommend. Galvanising on its own is a mottled grey that weathers unevenly; powder coating over it gives an even colour in whatever shade you want, with the galvanising still doing the corrosion work underneath.

The exception is a purely functional stair — a fire escape, or a back-of-house access route nobody looks at — where galvanised and left is perfectly sensible and saves you the second process. On commercial and industrial work, galvanised is the standard.

See our material and finish standards page for what to expect from each.

What is included

Bolt-together kit with all assembly fixings — note that wall and base fixings are not included, as these depend on what you are fixing to
AutoCAD drawings made to your dimensions and sent for approval before anything is manufactured
UKCA certificate
10 year product warranty
Structural calculations available on request, at additional cost

Delivery and installation

The price shown is for collection; delivery is quoted by product and postcode, kerbside as standard. Lead times vary with the design — ask us for a current estimate.

Kits are designed for straightforward assembly, but a staircase is structural and we would recommend a competent tradesperson fits it. We install nationwide and are happy to quote.

Looking after it

Galvanised or powder-coated steel needs very little: keep it clean and it will look after itself.

Why buy from us

Family-run, over 30 years of it, everything designed and made in Sheffield. UKCA certified stairs with a 10 year warranty, supplied as a DIY kit or installed by our own team, and the flexibility of a fabricator rather than a catalogue.

Tell us the floor-to-floor height and what the stair has to reach and we will tell you what will work. Call 0114 243 9009 or email sales@diometonline.co.uk.

Stairs we have made

A note on specification

The guidance on this page reflects what we typically supply and is offered in good faith. It is not a structural specification and it is not a substitute for project-specific design. Rise, going, headroom, guarding, loadings and the structure you are fixing to all vary, and final compliance for your project remains the responsibility of you, your designer or your building control body. We manufacture to the sizes and specification you give us.