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John Rumm
 
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Quick building regs question:

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


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John.

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

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.


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Toby
 
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Max rise 220mm
Min going 220mm
Max pitch 42deg

So for rise of 220 at 42deg, going = 244mm (2R+G 684mm)
and for going of 220 at 42deg, rise = 198mm (2R+G 616mm)

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

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.


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Tony Bryer
 
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In article , Toby
wrote:
All in approved document K


Free download from

http://www.safety.odpm.gov.uk/bregs/brad11.htm

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Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm


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