Metal stud for fitting plasterboard

Should the metal stud not be set at 450 or 600 mm depending on what size boards are being used

It does seem a bit unnecessary, but without seeing the wall it's hard to see what the builder/Plasterer had in mind. Metal stud has 3 cut out holes in each section to allow for service. I'm assuming that as you are putting up a false wall it's to hide the service. He might be thinking that the MF wall depth isn't wide enough to accommodate the largest service pipe you have going behind. As such doubling them up will allow for more space. Possibly if you have a waste pipe behind the back. If this was the case, you would need to cross the to stop them flexing, maintaining either 400/600mm spacing as mentioned before. Hope this helps. Kind Regards Alex Morley Plastering

We use allot of metal on shops and offices. Great material and very fast when used correctly. Metal stud is used very similar as timber just with more braces for stability, or pieces of timber in it around door frames. They should only need 1 layer of stud with small pieces braced back to the wall if it needs building out. Though as a previous post said there are holes in it for services. I'd do 400 centers in someone's house but on site it's normally 600. You would probably find doing it in timber cheaper also a bit more sturdy. Each to their own though

By the sounds of it your installer is new to metal stud partitioning from that method if its a stand off wall on it own this wall would not need bracing back and you would fly a 50mm c stud wall in front to accommodate services to keep room tightness and allow new flat wall the use on Gyp-Liner materials should be used here and fixed to the wall at 400mm intervals. Maybe a picture and we could advise.