width of drywall sheets

i ve been doing some research and found out drywall comes in two sizes over here, 60 cm wide and 120 cm wide.. is there any advantage in use in one over the other? also i plan to add 2 layers of drywall. would adding a third layer increase the performance of the wall by much or is it just really worth it, considering the extra cost/ time/ labour. Thanks!

In a standard room, 2400x1200 sheets are good because they're long enough to reach to the ceiling and you don't have to worry about butt joints (which are tricker to finish if you're inexperienced with drywall finishing). Which makes the overall job quicker. In my case though, it's simply a case that 2400x1200 sheets are too big to be transported to the floor my studio is on without insane amounts of manual labour (carrying 3 pallet loads of plasterboard up 3 flights of steel fire escape is NEVER a fun plan!). Also, there's no way in hell 2 people lacking a drywall lifter can install the big sheets on a ceiling by hand. But the smaller ones can be lifted manually with a decent work platform.

right, so theres no advantage from an soundproofing point of view. i'll just go for the easy way and use the 60cm wide ones, they re a lot more manageable. thanks.

if your construction techniques are good, you're good. if not, then 1 more seam can mean 1 more chance for you ceiling to NOT be airtight.

right, apart from that theres no difference, for instance in stiffness, resonant frequency or something like that?

hmmm. beyond my knowledge there. i did read a whole thing in one of the stickies on top of the construction forum all about drywall techniques and things. i honestly think there are more important things to spend your time/energy on researching. as you get building, the stresses of not making any critical mistakes rises dramatically.

thanks i guess you re right, i just want to guard myself against easy to make and avoidable mistakes in the process.. just trying to cover every angle..

thanks i guess you re right, i just want to guard myself against easy to make and avoidable mistakes in the process.. just trying to cover every angle..