Estimated Delivery 2 - 3 Weeks

Arke Klan Spiral Stair Kit


2 - 3 Weeks

The Klan combines the warm look of solid, clear sealed Beech treads with the strength of a sleek steel framework. As with all the stairs in the Arke range, a number of tread and metalwork colours are available to ensure it looks perfect in any setting.

For international shipping, contact us to discuss your needs.

Arke Klan Spiral Stair Kit - Information
Construction: Manufactured in Steel & Timber (Beech)
Spiral Rotation: Clockwise or Anti-clockwise
Application: Indoor use
Metalwork Colour Option: Black (RAL 9017)
White (RAL 9010)
Grey (RAL 9006) 
Stair Diameter Choice: 1200mm 1400mm 1600mm
Opening Size:
1200mm Diameter = 1250mm Opening
1400mm Diameter = 1450mm Opening
1600mm Diameter = 1650mm Opening
Floor to Floor Heights: 2100mm to 2580mm (requires a 820mm Centre Post)
2530mm to 3060mm (Standard Kit)
2960mm to 3770mm (requires additional Tread Kit(s))
- see Technical Data section 
Individual Rise: adjustable from 210mm to 235mm
No. of Treads 
(Standard Klan Kit):
12 Treads + 1 Landing Tread
Landing Tread: Triangular design
Tread Angles 1200mm Diameter = 32.2°
1400mm Diameter = 29.4°
1600mm Diameter = 27.2°
Handrail Type: 42mm wood effect PVC with aluminium core
Balustrade Detail: Made up of 20mm steel balusters
Tread Detail: Solid 42mm thick Beech Treads (varnished)
either in a Light Natural or Dark tinted colour option
Optional Upper Floor Balustrade Kit: Supplied in a 1200mm length (comprises of 10 balusters, handrail & fixings)
Optional Riser Bar Kit: A Riser Bar is fitted to each tread so it conforms to the 100mm gap rule (distance between the treads not exceeding 100mm).
N.B You will need to check with your local building authority to make sure the Klan for your application is acceptable with Riser Bars.
Additional Balusters Kit
(1200mm Diameter Only): 
The Klan 1200mm diameter Spiral Stair will require an additional balusters kit to comply with Building Regs.
By including an extra baluster at every tread level this will reduce the baluster spacing to not exceed the 100mm gap rule for the balustrade. The kit is not required for both the 1400mm & 1600mm diameter Klan models. 
Information and installation downloads:
(Size: 406.9 KB)
Arke Klan Spiral Stair - Heights
Staircase HeightNo. of RisesTread Kits
Handrail Kits
Column Kits
2100 mm - 2350 mm 10 - - 1 **
2310 mm - 2580 mm 11 - - **
2520 mm - 2820 mm 12 - - -
2740 mm - 3060 mm 13 -------------- (Standard Kit) --------------
2960 mm - 3300 mm 14 1 - -
3170 mm - 3530 mm 15 2 * 1 2 **
3380 mm - 3770 mm 16 3 * 1 **

 If two or more Tread kits have been applied to the Staircase then it will be necessary to purchase the supplementary Handrail kit. This is required so the climbing balustrade can be extended to reach the landing floor.

** The Column Kits (Small Centre Post) measure 820mm in length and are required to replace the existing Column Kit (1250mm in length) provided in the Standard Klan Stair Kit. In doing this the lower or higher floor heights can be achieved.

Arke Klan Spiral Stair Kit - Extras
ProductsPrice (£)
Klan Stair Kit - 1200mm Diameter - 12 Treads + 1 Landing Tread £1400.00
Klan Stair Kit - 1400mm Diameter - 12 Treads + 1 Landing Tread £1550.00
Klan Stair Kit - 1600mm Diameter - 12 Treads + 1 Landing Tread £1625.00
Additional Tread Kit (1200mm Diameter) ** £150.00
Additional Tread Kit (1400mm Diameter) ** £150.00
Additional Tread Kit (1600mm Diameter) ** £150.00
Upper Floor Balustrade Kit - 1200mm in length ** £162.00
Supplementary Handrail Kit - 1200mm in length ** £48.00
Column Kit (Small Centre Post) - 820mm in length ** £42.00
Riser Bar Kit with 12 bars ** £114.00
Additional Balusters Kit (1200mm Diameter only) ** £120.00

Above Prices include VAT

If these products are purchased separately they will incur an additional carriage cost - please ring the Sales Office on 01243 785 246 or email: for details.

This product is not on a 1-3 working days schedule.
It comes directly from our supplier as we do not hold stock.

The delivery timescale is referenced at the top of the product page and will be confirmed to you at the time of order. 

Please read our full terms and conditions regarding the delivery procedure.

The delivery will be made by a transport carrier organised by the manufacturer, so it is important that you provide a contact telephone number.
As the transport carrier will contact you 24 hours prior to the delivery being scheduled.
Deliveries are usually made between 8:00am to 6:00pm Monday to Friday (excludes Bank Holidays).

Orders can be placed on our website for delivery destinations within the UK Mainland (England, Wales and Scotland).
For delivery destinations situated in the Highlands & Islands, Isle of Wight, Channel Islands, Isle of Man and Northern Ireland, please contact our Sales Office by email - to obtain a transport costing for the product.

For European or most Worldwide delivery destinations please email our Sales Office - with your enquiry detailing the product you are interested in, together with your full delivery address and contact information.
We can then return a Quotation for the product and delivery costs once this has been sourced from the transport company.

Important - please read before purchase
It is your responsibility to ensure that any local authority approvals necessary have been obtained. This will vary according to your application and we advise you to always check before going ahead with a purchase.

Fixed Ladders, Space Savers, Spirals and Loft Stairs are covered in the building regulations and we recommend you confirm with the Local Building Control Department regarding their suitability for any project prior to specifying.

Therefore it is your responsibility to ensure that any local authority approvals necessary have been obtained. This will vary according to your application and we advise you to always check before going ahead with a purchase.

Many of our products have been widely used in the past in conjunction with Building Control, but the interpretation of the requirements for any particular situation remains solely with your Local Building Control Department.

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