Hi. I'm in the process of putting up new plasterboard (just moved into my first place and old stuff needed ripping out as it contained asbestos). For my bathroom I basically have two options to cover the ceiling. Dimensions of the bathroom are ca 8'3" x 5'1". I have bought Gyproc moisture resistant sheets which are 1200mm x 2700mm (just under 4'x9'). The wooden battens run around the edge of the room, and across the room at approximately 16" intervals. I have read that it is better to install the plasterboard perpendicular to the wooden battens rather than parallel (though I'm not sure why?). If I do this then I will have one join that is the length of the bathroom, which would be better, but it possibly involves getting the plasterboard in to the room through the bathroom window. I probably could do this as it's a ground floor flat and the window opens quite wide. Alternatively I could have 3 more manageable pieces of plasterboard that span the width of the bathroom but would be running parallel to the wooden battens. I should also mention that the wooden battens are not all bang in line, though they are now secure to the ceiling. Most are out a few mm, but there's one in particular that is higher than it should be on one side of the room (maybe a cm or so, it looks like the concrete block above it was not set in place properly as this is out too), and at this point I will not be screwing the board right up to the wooden batten. Any experienced plasterboarders have any comments?