Spiral staircases and building regs

Can a spiral staircase ever meet building regs? Or is it a no-no?

Asked by Patrick on 8th Dec 2022
Expert Trade Answers
Best Answer
"Yes, spiral staircase are legal in the UK as long they live up to the regulations in the UK Building Regulation for primary use. 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."
Answered on 9th Dec 2022 - Member since Dec 2022 - report
"Spiral staircases with, meet building regs check it out on line for your requirements"
Answered on 12th Dec 2022 - Member since May 2022 - report
"Yes it can runner and riser will be measured out to meet regulations and the number of steps"
Answered on 31st Dec 2022 - Member since Dec 2022 - report
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