1500mm Milano C20 Plus Spiral Staircase

Price range: £2,450.00 through £3,450.00

The Milano C20 Plus Spiral Staircase features powder coated steel vertical spindles and solid beech treads with segmented beech handrail. Available in six diameters – 1100mm, 1200mm, 1300mm 1400mm, 1500mm and 1600mm to suit your project. PLEASE NOTE THIS PAGE IS FOR THE 1500mm DIAMETER. You will find separate product pages for the other diameters.  


Description

There are four colour choices for the powder coated steel for the Milano C20 Plus Spiral Staircase – White, Light Grey, Black and Dark Grey/Bronze and the brushed solid beech treads and segmented beech handrail are available in the following colour treatments – Oak, Walnut, Stone and Wenge. Matching accessories: balustrading for the stairwell and riserbars to fit between the treads.

Please select the number of treads and your colour choices from the drop down boxes above. (You can double-check the number of treads to order in the tab below labelled “How Many Treads Do I Need?”)

And all of this is delivered to your door in carefully manufactured components ready for straight forward installation by any competent DIYer or tradesperson. (Installation instructions are included!) Perfect for selfbuild projects.

The Milano C20Plus Spiral Staircase with the 1500mm diameter complies with the requirements for Category A Secondary Staircase in the BS5395 Part 2 regulations. The addition of the riserbars to fit between the open treads ensures compliance with the UK Building Regulations 100mm gap rule. You can find more details about the riserbars here.



Milano C20Plus Spiral Staircase Description

ManufacturerD’Opera, Italy
Model NameMilano C20Plus Spiral Staircase
FormatSpiral Staircase – Made to Order Kit Format (Self assembly)
Available Diameters1100mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm
RotationClockwise or AntiClockwise (you decide at installation)
Tread Colour OptionsPigmented Oil and Hard Wax – Oak, Walnut, Stone or Wenge Stain
Steel Colour OptionsWhite, Light Grey, Black, Dark Grey/Bronze
Number of Treads10-16 including triangular landing tread (depending on the order)
Number of Risers11-16 (depending on the order)
Tread Type40mm thick Solid Laminated Beech with Brushed Finish
Balustrade TypePowder Coated Steel round baluster spindles 20mm diameter
Handrail Type50mm diameter Segmented beech, colour matched to treads
Installation VideoNo
Warranty PeriodOne  Year
Installation InstructionsClick here to download the C20 Plus Installation Instructions

N.B. This staircase is carefully designed and manufactured in Italy and is a certified product CE European Technical Approval – ETA. However, European staircase regulations differ from those in the UK, in particular about the maximum tread rise. You will find details of the UK Building Regulations (Part K) in our Knowledge Centre Page. Please give us a call if you would like further advice.

PLEASE NOTE: 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.


The delivery takes approx 4-5 weeks (and delivery to UK mainland and customs processing costs are included).



Steel ColoursWood Stains
WhiteOak
Light GreyWalnut
BlackStone
Dark Grey/BronzeWenge

Technical

Landing Installation options:
   
Circular Opening
Mezzanine Opening
Square Opening

Tread Geometry
Landing Tread Dimensions
 Riserbars to fit between the treads

Click here – C20 1500mm Tread Geometry to download a pdf

Click here – C20 1500mm Landing Tread Dimensions to download a pdf 

 

 Riserbars for Milano

 


Tread Layout Diagrams

Showing Clockwise and

Anti-clockwise Ascent

 
10 treads/risers
11 treads/risers
12 treads/risers 

13 treads/risers

14 treads/risers
15 treads/risers
16 treads/risers
 

 

 

How many treads do I need for my spiral stairs?

How to calculate the number of treads

For your finished floor to floor height in mm:

UK Regulations EU Regulations Number of Treads
2100-2200mm 2100-2300mm 10 treads/risers
2310-2420mm 2310-2530mm 11 treads/risers
2520-2640mm 2520-2760mm 12 treads/risers
2730-2860mm 2730-2990mm 13 treads/risers
2940-3080mm 2940-3220mm 14 treads/risers
3150-3300mm 3150-3450mm 15 treads/risers
3360-3520mm 3360-3680mm 16 treads/risers

This table shows the individual tread rise range which can be installed for this staircase, from the minimum (210mm) to the maximum (230mm).

This staircase is carefully designed and manufactured in Italy and is a certified product CE European Technical Approval – ETA. However, European staircase regulations differ from those in the UK, in particular about the maximum tread rise. Please note that UK regulations require a maximum tread rise of 220mm and the table above will show how many treads you would need for the UK or EU.

Just to explain how the individual tread rise is adjusted, each tread rise section comprises the centre column (part no. C20-300) with a rigid plastic shim (C20-295) set into each end of the column. This results in a tread rise of 210mm. To increase the tread rise, additional shims are added at either end of the column, which will increase the tread rise by 5mm for each one, as shown in the following diagrams.

 

If you’re unsure about how this works for your project, or have any questions, please give us a call.