Hi all, I was hoping someone would be able to give me some advice - I've been trying to get my head around some building regulations and am starting to get a little confused!
We are replacing an external staircase at a private residence which goes up to the entrance of a first floor flat, and want to make sure it complies with building regulations. It is the only access to the flat, and so is also a means of escape.
I'm trying to work out the required width, rise and going of treads and so have been looking at parts K1, M4 and B1 of building regulations, and this is where I'm getting a bit mixed up:
- rise should be between 150-220mm (K1 1.3). Or should the rise be between 75-150mm as per M4(1) 1.8, as it is an "external stepped approach"?
- going should be a minimum of 220mm (K1 1.3) - or is this 280mm? Is this classed as "stairs that are part of the building?
- there is no minimum width?
Any advice very much appreciated!
Many thanks,
Jari
P.S. it may be worth mentioning that we're using an accredited manufacturer/installed for this project and have asked them to make sure it complies with all building regs - I'm not trying to do this DIY! However, I want to be clued up on the regulations because I think some of the criteria that the manufacturer has been quoting is only applicable to non-dwelling buildings..
We are replacing an external staircase at a private residence which goes up to the entrance of a first floor flat, and want to make sure it complies with building regulations. It is the only access to the flat, and so is also a means of escape.
I'm trying to work out the required width, rise and going of treads and so have been looking at parts K1, M4 and B1 of building regulations, and this is where I'm getting a bit mixed up:
- rise should be between 150-220mm (K1 1.3). Or should the rise be between 75-150mm as per M4(1) 1.8, as it is an "external stepped approach"?
- going should be a minimum of 220mm (K1 1.3) - or is this 280mm? Is this classed as "stairs that are part of the building?
- there is no minimum width?
Any advice very much appreciated!
Many thanks,
Jari
P.S. it may be worth mentioning that we're using an accredited manufacturer/installed for this project and have asked them to make sure it complies with all building regs - I'm not trying to do this DIY! However, I want to be clued up on the regulations because I think some of the criteria that the manufacturer has been quoting is only applicable to non-dwelling buildings..
