Brittish gypsum and knauf have said 600mm on a standard wallboard is acceptable. It is on the spec on their websites for the plasterboards.
I had same question when i first started timber frames.
To me it doesnt seem.right but theyre the experts
only 600mm centres on walls. 12.5mm on ceilings without noggins will bow.i started a site today (timber frame).the agent has insisted that 600 centres with no noggins on ceilings taking a 12.5mm board is ok.
This is to be skimming also.
I mentioned this to him a few weeks back although he reckons it's fine
Your thoughts please
Yes I'm supplying all the materials on 30 housesThey will be a c**t to skim Bobby, if you end up going ahead with it get back on skimming them ASAP. Had a pain in my stones doing a couple of houses at 600 centres, the builder was only came round to my way of thinking when he saw what extra it was costing him in finish!! Your supplying??!!
I prefer 600mm centres. The job is quicker to insulate and there is less screwing. I have always thought 15mm board is for ceilings with no noggins. Also you can actually move the joints with 12mm if you push too hard when skimming, cracking it yourself.Exactly. Im not saying i agree with it. Far from it. But are we going to spent extra on 15mm boards out of our price?