Hang drywall horizontally if at all possible. Try to put the joints
centered above or below windows or above doors. The horizontal seams are
MUCH easier to do than vertical seams. My last project with 110' of
walls had only 14 total feet of butt joints, all in out of the way
places. If you have drywall finished ceiling, put the ceiling in first,
you can leave small gaps at the edges to make it easier on yourself. The
put the first row of wall material up snug to the ceiling. Put the
second row in at the bottom, leave the uneven gap at the floor.

Sounds like you have 12' walls so 3 rows of drywall. That means every 4'
of vertical placement will give you 12' of tapered seam. Running it
horizontal will give you 8' of horizontal tapered seam (much easier to
tape) plus some part of some butt seams.

stryped wrote:
What would be the best way to hang drywall on a 30 feet long by 10
feet high wall? I bought a book and it says to have as few seems as
possible but it also says to avoid butt joints.

I can buy 4x12 and hang it parallel to the studds and have no butt
joints. Or I could buy 4x16 and hang it perpendicular to the studs but
will have but joints but less total joints.

I am strongly leaning toward a suspended ceiling for the garage so the
joints at the top are a moot point I think.