When you say square set, do you mean a square set plasterboard opening with doors attached without any frame or architrave with no gaps? All doors need some gap so that they can open and close. If you want this level of perfection (as square set plastering is not perfect) then you would be better doing it as a large cabinetwork item rather than trying to make it work with square set plasterboard which is dependent of how good the timber framing is underneath.

I wouldn't feel confident either. A photo may clarify your question...

Best of luck,

Dr Retro

of Dr Retro House Calls

I want it to look like this :)

Sharyn, your photo has a tiny gap between the top of the door and the underside of the square-set plasterboard. The laundry in your photo has been cleverly and beautifully designed, detailed, and supervised and I suspect that the track for the bi-fold doors has been concealed behind the square-set plasterboard. There isn't a lot of detail in the photo so it would be good to see how neat it looks when closed.

I think that the square set opening to a small, heavy-duty, utility space is likely to become damaged and dirty before too long. I would probably spend my money on somewhere else and just go with a boring and practical MDF door reveal and architrave for a European style laundry.

As always God is in the details and this particular detail will cost you as far as design, detailing and supervision. I hope you have a good designer (who likes getting the details right) and a good builder (who likes building to precise tolerances) on your team.

Best of luck,

Dr Retro

of Dr Retro House Calls

You need to look at how your doors are hung at the top to work out detail to hide track