Skip to main content
Bespoke Staircases

Case Studies

Cummins UK, Daventry

This external spiral staircase really demonstrates that we can produce spiral fire escape staircases of any shape and size. This was one of a range of external escape stairs created for Cummins UK in Daventry, a leading manufacturer of diesel engines.

Working with SDC Builders, we designed and manufactured this large external spiral stair which had a security enclosure at the base, a rest landing, middle landing and a top landing that incorporated a section of straight treads right at the top.

External spiral staircase
External spiral staircase
Cummins UK, Daventry
External spiral escape staircase
SDC Builders
Cummins UK

Steel Spiral Staircase

This imposing external spiral staircase was fabricated in mild steel galvanised to ISO EN1461. All our fire escape stairs are compliant with British Standard BS5395 Part II (Code of Practice for the design of helical and spiral stairs 1984).

At a glance

Floor to Floor Height: 7625mm + 4334mm
Spiral Diameter: 349.4mm
Risers: 40 @ 190.63mm, 22 @ 197mm, Open
Tread Radius: 50 @ 1050mm
Clear Tread Width: 828.2mm
Tread type: Durbar plate
Balustrade: 2 x 22m diameter uprights per tread with 40mm x 6mm flat handrail with PVC capping
Landing: 3500 x 1200mm landing in durbar plate
Additional Info: Perforated sheet panel security enclosure to the base of the stair with outward opening gate.

Get a quote

Get in contact to discuss your escape stair requirements and get a no obligation quotation.

Get a quote

Escape brochure

Read about our range of durable, helical and spiral British Standard fire escape staircases

Download your brochure

Email updates

Sign up to receive email updates on our latest staircases, news, activities and services. If you'd like to see how we manage your personal information take a look at our privacy policy.