Minimum thickness of stud wall for cloakroom

[gillpsimonb]

We are putting in a new cloakroom in a tight space - what is the minimum thickness of stud wall/partition that we can use ... every cm counts in this limited space.
Is there a minimum limit on width of the cloakroom itself ?
Can you have a door opening into a corridor - if no room to open it into new cloakroom ?
Thanks

 

[^woody^]

A 38mm CLS used sideways

 

[freddiemercurystwin]

I lived in a house that had internal partitions made from 2x1's used with the 2" length parallel with the partition, so the whole partition was 50mm thick, I know because I witnessed my house being built, they were perfectly rigid and no one would ever have known, people were amazed when I proved it by measuring them. But people will tell you here that that is no good but if every cm counts they would be adequate. Though if you've got a heavy fire door going in then it might not be ideal and obviously I'd not recommend you hang anything other than a bog roll holder off it.

 

[^woody^]

Paramount board used to be (still is?) 50mm thick. All the rage for 80's shoebox houses.