What's the magic formula for stud walls?

[JDLDIY]

Hi there, I know probably loads of questions have been asked about stud partition walls, but......
So far I have found that the advice seems to be to use 100mmx50mm timber and to fix the verticals at 600mm centres between sole and head plate timbers. Then use 100mm insulation to fill the gaps, but what exactly is it called and is it best to use rigid boards or fibre based stuff?

Is it worth double boarding with 12.5mm plaster-board on top of all this? I am quite keen to keep the noise down as much as possible without going mad.

So all in all am I going the right way with this, is there something I'm missing?

Many thanks

 

[noseall]

i would only space uprights at a minimum of 450mm, as a wall is far more vulnerable to knocks than say a ceiling for example.

 

[Bradleybuild]

Hi
Stud walling
4x2 timber, I always use tannalised
400mm centres for your verticals
head plate and sole plate correct
noggins are the horizontal members place these at the height of your plasterboard, so if p board is 1200mm wide then place a noggin so the centre of the noggin is at 1200mm, this is so every edge of the board 'lands' on some wood
Insulation for sound or heat or both, dependant on money you want to spend, mineral wool will stop some of both, there is a lot better out there, too many to mention here
cheers

 

[JDLDIY]

Thanks for all the advice, 400 /450 centres it is then. So what other types of insulation are there then? I'm only interested in stuff which is readily available across the counter. Does the mineral wool Come in 400/450 width rolls?

 

[noseall]

you can buy 'combirolls' of insulation that are pre-cut to suit standard joist or stud spacings. the user can select and separate the rolls, using a sharp knife, according to their joist/stud spacings.

 

[Bradleybuild]

combi rolls are 1200 wide so 400mm x 3 as per yer spacings

 

[JDLDIY]

Thanks, but I already went for Knauf slab insulation as it's what they had in the yard. Only problem is that it's 450mm wide so I'll have to cut it down each time. They said it was better for sound insulation than what they had on a roll anyway.