Spiral staircase DELTA

Spiral staircase DELTA in anthracite grey lacquered metal

The spiral staircase DELTA from DOLLE is a straight-lined spiral staircase with anti-slip treads for those who want to combine design, colour contrast and comfort.

Product Properties

Colour of structure

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As low as £2,099.99

The staircase comes in anthracite powder-coated metal construction and anthracite painted treads gives it a beautiful, unique and contemporary design. The wide treads provide comfortable space and the single railing with continuous handrail ensures safe access.


Our DELTA is part of the premium range of DOLLE spiral staircase range. With high-quality components and a unique design, the staircase has 11 treads which can be adjustable from 20,5 to 22,5 cm to a maximum landing height of 300cm. The treads, handrail and platform are presented in anthracite grey and designed to standout as unique, modern staircase. The balusters give the staircase an elegant look to match the staircase.

You have a choice of two widths, this is the actual diameter of the spiral staircase, you can have 120cm or 140cm. The landing platform can be installed directly onto the ceiling area

Safety & Quality

You can add a matching landing banister to match your delta staircase. Just measure the area you are looking to banister? We can quote you to your actual specification, just contact us with details of your project.


The pitch height can be adjusted with spacer rings from 20.4 to 22.5 cm depending on floor height. We advise you use as little spacers as possible as this will mean narrow gap between the treads, this will make your staircase more comfortable to climb.

If you want to know more about the specifications, you can visit technical data and downloads section to find out more.


  • 11 treads plus triangular landing
  • Banister aluminium anthracite grey
  • Indoor use only
  • High-quality spiral staircase
  • Options: Extra tread and balcony balustrade


Product number
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Tread rise
From 21,0 to 23,0 cm per tread (depending on floor-to-floor height)
Structure material
Structure finish
Powder coated
Colour of structure
Building reg. compliant
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