March 11, 20242 yr I've just installed new attic trusses at 400 centres and am looking at floor options. The "room" is 17 x 5m (to be divided up with stud walls). I've heard that 22mm is a must for 600 centres but for 400 centres I could use 18mm... I just wondered what people's thoughts are on 18mm vs 22mm? I've not priced up each yet but as they say in King's Cross, twenty quid's twenty quid... 😉
March 11, 20242 yr Is this for storage or usable rooms? Were the trusses designed for the floor loading? Or are they ordinary roof trusses?
March 11, 20242 yr Author Sorry, should have been clearer - they're attic trusses designed to be usable rooms (bedrooms and bathrooms).
March 11, 20242 yr 2 minutes ago, Capable Noob said: Sorry, should have been clearer - they're attic trusses designed to be usable rooms (bedrooms and bathrooms). Great, in that case go for the 22mm, floor will be much more rigid and the extra cost is minimal
March 11, 20242 yr Author Thanks. That was kind of what I was thinking, but thought I'd check in case the consensus was that it wasn't necessary. It's another of those things where you could save a few quid now but in the future you wish you'd spent the extra.
March 11, 20242 yr You only regret buying 22mm when you are carrying them up a ladder .. or carrying them anywhere come to think of it.
Create an account or sign in to comment