Estimated Delivery 3 Weeks

Fontanot Sky Exterior / Interior Spiral Stair Kit


3 Weeks

The Sky spiral stair provides a versatile access solution for both indoor and outdoor applications. It incorporates a sturdy steel structure finished to a high specification in a choice of 4 colours to compliment its surroundings.

For international shipping, contact us to discuss your needs.

Fontanot Sky Spiral Stair Kit - Information
Application: Outdoor or Indoor use
Spiral Rotation: Clockwise or Anti-clockwise
Construction: Hot-dip galvanized steel
Metalwork Colour Option: Black (RAL 9017), White (RAL 9010)
Grey (RAL 9006) or Iron Grey
Stair Diameter Choice: 1200mm 1400mm 1600mm
Opening Size:
1200mm Diameter = 1250mm Opening
1400mm Diameter = 1450mm Opening
1600mm Diameter = 1650mm Opening
Floor to Floor Heights: 2320mm to 2830mm (Standard Kit)
2740mm to 3530mm (requires additional Tread Kit(s))
see Technical Data section  
Individual Rise: adjustable from 210mm to 235mm
No. of Treads 
(Standard Sky Kit):
11 Treads + 1 Landing Tread
Landing Tread: Triangular design
Tread Angles 1200mm Diameter = 28.6°
1400mm Diameter = 26°
1600mm Diameter = 26.4°
Handrail Type: 50mm Black PVC
Balustrade Detail: Made up of 20mm steel balusters with polyester powder coat finish
Tread Detail: Hot-dip galvanised steel with polyester powder coat
finish. Treads have a raised profile to act as a non-slip feature.
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 Sky for your application is acceptable with Riser Bars.

The Sky 1200mm Diameter Spiral Stair does not comply with current Building Regs. Due to the fact that the space between each baluster exceeds 100mm. This is not the case for both the 1400mm & 1600mm Sky models.

Information and installation downloads:
(Size: 315.5 KB)
Fontanot Sky Spiral Stair - Heights
Staircase HeightNo. of RisesTread Kits Required1250mm Column Kit Required820mm Column Kit Required
2320 mm - 2590 mm 11 - - -
2530 mm - 2830 mm 12 -------------- (Standard Kit) --------------
2740 mm - 3060 mm 13 +1 +1 ** -
2950 mm - 3300 mm 14 +2 - +1
3160 mm - 3530 mm 15 +3 - +1

 Replaces the existing 820mm column kit already supplied in the Sky Spiral Stair.

Fontanot Sky Spiral Stair Kit - Extras
ProductsPrice (£)
Sky Stair Kit - 1200mm Diameter - 11 Treads + 1 Landing Tread £1425.00
Sky Stair Kit - 1400mm Diameter - 11 Treads + 1 Landing Tread £1625.00
Sky Stair Kit - 1600mm Diameter - 11 Treads + 1 Landing Tread £1950.00
Additional Tread Kit (1200mm Diameter) ** £170.00
Additional Tread Kit (1400mm Diameter) ** £170.00
Additional Tread Kit (1600mm Diameter) ** £170.00
Upper Floor Balustrade Kit - 1200mm in length ** £230.00
Column Kit (Small Centre Post) - 820mm in length ** £42.00
Column Kit (Centre Post) - 1250mm in length ** £65.00
Riser Bar Kit ** £260.00

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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