K1 building regulations is the approved document which covers stairs ladders and ramps.
Spiral staircase regulations scotland.
Overall staircases in scotland are likely to be larger in width and length and take up more space than those elsewhere in the uk.
The document governing spiral staircase building regulations in the uk is british standard 5395 part 2.
Spiral staircases page of continental stairs.
The rules and regulations for spiral staircases are still laid out by the british standard 5395 although the scottish regulations still require the 900mm clear tread width for a main stair as opposed to the 800mm mentioned in the bs.
If your spiral staircase complies with bs5395 then it also complies with k1 building regs.
Domestic spiral staircases come under 2 aspects of the building regulations.
Uk staircase regulations there are three main building regulations that relate to staircases generally referred to as part k m b.
In k1 section 1 21 spiral and helical stairs the regulations refer you to a british standard bs5395 2 1984.