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.
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 technical handbook also recommends that consideration needs to be given about a future stair lift installation.
Generally, there are not too many differences between the Scottish building regulations and those elsewhere in the UK – both are designed with user confidence and safety in mind. Being more recently written, the Scottish building regulations seem much clearer and more precise and go into a little more depth when describing each element of a stair.
Of course, we are well versed in building regulations across the UK and our stairs are designed to meet the standards when required.
You can see the full regulations here.