Gamia Zinc Exterior Spiral Staircase 1600mm

Exterior spiral staircase 1600mm diameter with galvanized finish. Made to Order only

Meets Building regs BS5395-2 Cat A under K1 building regs

Delivery: Estimated delivery is approximately 6 to 8 weeks - shipping to Mainland U.K. only

£2,399.00 £1,999.17

Gamia Zinc 1600mm diameter Exterior Spiral Staircase Kit

This staircase is made to order

The Gamia Zinc outdoor spiral staircase kit is ideal for installing in any exterior location, especially where you need to save space in a garden or courtyard. Featuring straightforward assembly the Gamia Zinc spiral staircase kit features a tough zinc coating and stainless steel or galvanised fixings for outdoor use. The Gamia Zinc spiral staircase handrail is made from one-piece flexible pvc for ease of installation. Tread height adjusters are made from tough GRP to last a lifetime.

The height of each tread is adjustable so that you can fit any floor to floor height between *2640mm and 2860mm - you can also add extra treads to give a maximum floor to floor height of 3520mm. *Lower heights can be achieved by removing some treads, minimum height is 2250mm floor to floor.

  • Available in 3 standard diameters, 1200mm, 1400mm and 1600mm
  • 1400mm and 1600mm versions meet K1 building regulations BS5395 Cat A
  • Galvanized finish suitable for exterior use
  • Height adjustable for a perfect fit
  • Can be built clockwise or anti-clockwise
  • Supplied ready for self-assembly - assembly videos available on YouTube
Building Regs? Meets BS5395-2 Cat A under K1 building regs.
Treads Steel treads, Galvanised for all weather use, drainage /anti-slip holes in treads
Metalwork / spindles Heavy duty galvanised finish with ABS moulded fixings, pvc handrail, GRP adjustable spacers.
Height adjustable treads Yes, range 2640mm to 2860mm for standard kit of 13 steps - extra treads available to extend range. Lower heights achievable down to 2250mm by removing treads.
Clear Tread Width 707mm between centre column and inside of handrail
Dimensions Overall width of staircase is 1600mm diameter
Landing Platform Included - triangular landing mounts directly to your structure


1. Gamia Zinc layouts

2. Gamia Zinc Landing dimensions

3. Manufacturers Catalogue

We advise that you check the suitability of any spiral staircase with Building Control before purchase. More Info here

* Subject to our standard terms and conditions.

More Information
Colour Galvanized
Type Of Tread Galvanized Treads
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