Stairs

Quick building regs question:

Does anyone know what the maximum allowable rise, and minimum allowable going on a domestic staircase is?

Reply to
John Rumm
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Max rise 220mm Min going 220mm Max pitch 42deg

So for rise of 220 at 42deg, going = 244mm and for going of 220 at 42deg, rise = 198mm

Also there is a rule of 2R+G < > a broad limit which escapes me right now.

Toby.

Reply to
Toby

Greater than 550, less than 700

In addition: Tapered treads i.e. winders, should have a minimum going of 50mm Going for a stair of up to 1m width should be measured at the centre line All consecutive tapered treads should have the same taper All steps in a flight should have the same R & G Not more than 36 steps in a flight Open risers should not permit the passage of a 100mm sphere

2m recommended headroom above the whole of the stair

There special clauses regarding stairs to a loft conversion (1 room plus adjoining bath) which give greater flexibility.

All in approved document K

Toby.

Reply to
Toby

Free download from

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Reply to
Tony Bryer

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