Quite simply yes. You'll have to fit dwangs (noggins) where each of the boards in a run meet. I'm assuming if your using 8' x 4' plasterboard? and that the ceiling battens are spaced at the correct (600 mm) spacing??
Now comes the difficult bit, if that is your a novice - the working platform - placing the boards correctly for ease of lifting above your head(s) in the right direction for any service cut outs, wall ends and scribing etc. How you hold it in place (a hard hat with a very short on no visor is good) soldiers etc. all help, good luck...pinenot
You might find the timber a little narrow for joining the boards on, you will need to fit accurately. Span should not be more than about 1.2m without support .
Yes across will do it but you should dwang (noggin) down the length - start of wall and at each side joint, between each batten. Cut each board length to achieve lapping halfway onto each batten, then start the next board hard against this. You must get the cut ends square to the sides so that the next board (factory ends)fits up snug. You get 900 x 1800 mm boards which may be easier for you handle...pinenot
OK, now that I know the ceiling dimensions, personally I would buy one 2400 x 1200 board, now you have a choice - cut it across (make sure the cut measures the correct length from your start end wall to the middle batten) this will make both cuts approx 700 x 1150, fairly easy to handle. -
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