Spiral Staircases

See an overview of our modern spiral staircases, stairways, and landing banisters. Our Scandinavian-inspired spiral staircases made from high quality materials finished in trendy colours. We have divided our spiral staircases into Main spiral staircase to building regulations and Spiral stairs for loft conversions

Main Spiral Staircases - regulation compliant

If you are installing a spiral staircase from one floor to another i.e., hallway to bedrooms, bathrooms etc it will need to comply to certain regulations. One of the main rules is the 100 mm gap rule. This means that at no point there is a gap bigger than 99 mm between the balusters or the individual treads. The MONTREAL Classic 4 MONTREAL Classic 5, SIGMA, COLUMBIA, KAPPA or VEGA are good examples of spiral staircases for access to habited space. 

Spiral stairs for loft conversions

If you are installing a secondary spiral staircase for access to loft space, office, playroom, mezzanine floor etc you should have no issue in fitting a more basic spiral staircase as this is deemed non habited temporary access. In this case you are fine with CALGARY White and Grey, CALGARY anthraciteMONTREAL Classic 2 & MONTREAL Classic 3MONTREAL Design plus the Spiral Staircase DELTA


Overview and explanation of gap between the balusters on a Spiral Staircase


Main rules is the 100mm sphere gap. Which means that there can not be a gap bigger than 99mm between the balusters. The Spiral staircases Montreal Classic 4 and 5 is fine and complies to building regulation. But the Classic 2 and 3 will fail with the gap between the banisters and can only be used as a secondary spiral staircase. 


Spiral staircases

Our spiral staircases are smart; like a sculpture in the room to improve a home’s infrastructure. They are space saving, modern staircase finished in bright colours with a contemporary design.

MONTRÉAL CLASSIC 2



Diameter:120 & 140 cm

Treads:Beech veneer & Oak multiplex

Average going 120 cm:16 cm

Average going 140 cm:18.2 cm


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MONTRÉAL CLASSIC 3



Diameter:120 & 140 cm

Treads:Solid beech & Oak multiplex

Average going 120 cm:16 cm

Average going 140 cm:18.2 cm


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MONTRÉAL CLASSIC 4



Diameter:120 & 140 cm

Treads:Solid beech & Oak multiplex

Average going 120 cm:16 cm

Average going 140 cm:18.2 cm


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MONTRÉAL CLASSIC 5



Diameter:120 & 140 cm

Treads:Beech veneer & Oak multiplex

Average going 120 cm:16 cm

Average going 140 cm:18.2 cm


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MONTRÉAL DESIGN 10



Diameter:120 & 140 cm

Treads:Solid beech & Oak multiplex

Average going 120 cm:16 cm

Average going 140 cm:18.2 cm


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CALGARY



Diameter:120 & 140 cm

Treads:Multiplex beech - varnished

Average going 120 cm:11.2 cm

Average going 140 cm:13 cm


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COLUMBIA



Diameter:120 & 140 cm

Treads:Oak varnished

Average going 120 cm:15 cm

Average going 140 cm:17 cm


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DELTA



Diameter:120 & 140 cm

Treads:Metal

Average going 120 cm:15 cm

Average going 140 cm:17 cm


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VEGA



Diameter:120 & 140 cm

Treads:Beech - untreated

Average going 120 cm:12.5 cm

Average going 140 cm:14.5 cm


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KAPPA



Diameter:120 & 140 cm

Treads:Multiplex beech - varnished

Average going 120 cm:12.5 cm

Average going 140 cm:14.5 cm


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SIGMA



Diameter:120 & 140 cm

Treads:Beech laminated

Average going 120 cm:12.5 cm

Average going 140 cm:14.5 cm


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FAQ Spiral staircases

Yes, spiral staircase are legal in the UK as long they live up to the regulations in the UK Building Regulation for primary use. Spiral staircases are very popular in the UK, not just for loft conversion. A spiral staircase must live up to the following regulations.
1)    100mm sphere gap rule. This means that at no point there is a gap bigger than 99mm between the balusters or the individual treads. To avoid the gaps of more than 10 cm e.g., in-between treads. Riser bars (child guards) can be fitted between the treads to reduce these gaps.
2)    It is also essential that all steps/treads have the same rise. The individual tread rises measures no more than 22 cm. 
3)    Spiral staircases may also need a minimum clear stair width of 60 cm. 
All these aspects covered are just guidance and it will be the decision of the building inspectors to judge whether your spiral stair meets the regulations.

IMPORTANT: It is your responsibility to ensure that spiral staircase, handrail and landing banister are safe. If you have doubts, please contact your local building authority.

We endeavour to make purchasing and installing of your new staircase as simple as possible. We design our spiral staircases easy to mount with the most basic of tools. Our spiral staircase has a great flexibility that makes the spiral staircase adjustable to fit restricted spaces.
Our goal is that our Installation video empower people to build a spiral staircase step by step themselves without help of craftspeople thus saving money.

Our goal is that our Installation video empower people to build their spiral staircase themselves without help of craftspeople thus saving money. The staircases are designed easy to mount so you can do it in a single weekend and only with the most basic of tools. But if you still need a craftsman to do it - it should be easy for him to do it in one day. That should give you an idea of the cost of an installation of a spiral staircase. 

All our Spiral Staircases in the Montreal serie comes with 11-14 treads. But all you need to measure is your floor-to-floor height in the room where you want to install the spiral staircase. This measurment you use under the spiral staircase you want (in the drop down) to pick your staircase.  Our Spiral Staircase are super flexible and comes in almost all floor-to-floor heights.

We have 2 sizes of our spiral staircase in diameter 1200 mm and 1400 mm. The 120 cm is a narrow spiral staircase for smaller spaces and loft conversions. Pick our smallest spiral staircase in 120 cm in the drop down on the spiral staircase product page. 

To make spiral staircases safer we offer riser bars to our spiral staircases. Our Riser bars are designed to fit horizontally between the treads of an open-tread spiral staircase. The riser bars reduce the gap between treads to less than 10 cm, so that they comply with the 10 cm rule in building regulation.

One of the main rules in the Building Regulations is the 100 mm sphere gap rule. This means that at no point there is a gap bigger than 99 mm between the balusters or the individual treads. Our main staircases MONTREAL Classic 4 and MONTREAL Classic 5 are fine and complies to building regulation and thereby legal according to Building Regs.

Yes a spiral staircase need a landing and a landing banister to make the staircase safe. It is your responsibility to ensure that spiral staircase, handrail and landing banister are safe. If you have doubts, please contact your local building authority. Matching landing banisters are available for all our Spiral staircases. The balcony banister are with vertical filling to provide high safety. The matching landing banister or parapet railing is a big part of the visual beauty at the stairway.

Get a lot of inspiration on spiral staircase here on our website. We also have a guide “How to measure” for a spiral staircase. All our spiral staircases come in kits- all you need is included in the box easy to install for all DIY. All of our spiral staircases also have good video mounting instructions.

Our spiral staircases go both ways. You can mount them both clockwise as well as anti-clockwise. Our spiral staircases are possibly the easiest to install, DIY spiral staircases in the UK. They are easy to build and only requiring the most basic of tools. Our DIY spiral staircases don't require a builder if you are following our video mounting, they can be installed by you, thus saving you money.

DOLLE, we have spiral staircase in a large price range. Our Main Spiral Staircase - regulation compliant are in the price level from £ 1.435 - £2.800 depending on wood, diameter and the floor-to-floot height you need.  
The secondary spiral staircase that provide access to loft space, office, play room etc. have got a price range from £800 - £1300 depending on diameter, wood, strenght of structure and and the floor-to-floot height you need.
Get expert advice and cost-saving tricks for your Spiral Staircase. Call us - we are here ready to help - tel: 01376 528000 

We have 2 sizes of diameters for our Spiral Staircases - 120 cm and 140 cm. The 120 cm is a narrow spiral staircase for smaller spaces and loft conversions. Pick the spiral staircase diameter in the drop down on each spiral staircase product page.  

Our spiral staircase with a diameter of 120 cm take up 130,6 x 130,1 cm. Please see our drawing under each products page under DOWNLOADS - here you will also the the lay-outs from above on your spiral staircase.   

Our spiral staircase with a diameter of 140 cm cm take up 150,6 x 150,1 cm. Please see our drawing under each products page under DOWNLOADS. 

Yes, spiral staircases are legal in the UK as long they live up to the regulations in the UK Building Regulation for private use. Spiral staircases are very popular in the UK, not just for loft conversion. A spiral staircase must live up to the following regulations.

  1. 100mm sphere gap rule. This means that at no point there is a gap bigger than 99mm between the balusters or the individual treads. To avoid the gaps of more than 10 cm e.g., in-between treads. Riser bars (child guards) can be fitted between the treads to reduce these gaps.
  2. It is also essential that all steps/treads have the same rise. The individual tread rises measures no more than 22 cm.
  3. Spiral staircases may also need a minimum clear stair width of 60 cm.

These points are a guidance, and it will be the decision of the building inspectors to judge whether your spiral stair meets the regulations.

Yes, when you are installing a spiral staircase from one floor to another ie hallway to bedrooms, bathrooms etc it’s has to comply to certain regulations. It is important to concult your local building inspectors to judge whether your spiral stair meets the regulations.

The balusters and center construction are made of powder coated metal in 3 colours: white, antrahcite or grey. The spiral staircase is offered with deep treads made of solid beech or oak multiplex - Customise the staircase in line with your needs and interior design by selecting from the drop-down menu on each product page.

The centre post forms the foundation for our spiral staircases, it will have a solid base that will be mounted to your floor. Supporting balusters and a handrail will be affixed to the widest part of the treads to provide a safer climb up the spiral staircase. The top landing platform is secured to the loft opening at the stairway. The spiral staircase is supported at both the top and bottom.

All you need to measure is your floor-to-floor height in the room where you want to install the spiral staircase. This measurment you use under the spiral staircase you want (in the drop down) to pick your staircase. Our Spiral Staircase are super flexible and comes in almost all floor-to-floor heights.

If you want a comfortable spiral staircase to climb, you should choose a rise height in the range of 18 - 21 cm. At a high rise you will find that the staircase is steeper to climb.

The simplest way to find the rise is like this: Floor-to-floor height divided by Numbers of treads.