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Bespoke Staircases

Fit Out

Blue steel spiral stairs for Checkatrade

Spiral UK were commissioned to create the office fit out stairs for the refurbishment of Checkatrade’s new headquarters at Lakeside North Harbour, Portsmouth. We worked with fit out company Grey Interiors who were contracted to design and deliver this new 30,000 sq ft workspace.

The large spiral staircase we designed was modern in style, fabricated in steel then powder coated in the familiar Checkatrade blue to reflect the commercial interior design of this workspace.

Blue steel spiral staircase
Blue steel spiral staircase

Spiral UK has lots of experience of working on office fit out projects. We have found that keeping our design, manufacture and install process in house helps us maintain our high-quality standards and manage the tight schedule common for these types of jobs.

Checkatrade, Portsmouth
imposing blue steel spiral staircase
Grey Interiors

Office spiral staircase

This large bespoke spiral staircase really made its mark in the open plan design of Checkatrade’s offices. Serving two floors these office stairs were enclosed with a special perforated sheet on the outer balustrade and an integrated stringer band. The unperforated margin at the bottom of the stair was designed to look like a decorative stringer. The treads were inlaid with hard wearing carpet and the handrails were mild steel in matching Checkatrade blue.

At a glance

Floor to floor height: 4424mm
Diameter: 3000mm
Landing: 1750mm x 1750mm
Treads: 23 @ 1500 radius in mild steel
Tread clear width: 1229mm
Risers: 24 @ 187.3mm
Outer stringer: 1 x 42mm upright per every third tread with perforated sheet bolted to posts extended down to cover the ends of the treads
Handrails: Mild steel fixed to balustrade and core pole
Additional: Balustrade continued to upper stairwell
Blue office stairs
Blue steel handrail
Blue perforated steel sheet balustrade
spiral staircase for office fit out
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