Thanks Pottsy, Acrobat 5.0 did the trick. Once opened the Dow article did give me the information needed (a 45 gal drum has 440 lbs of bouyancy), now I can do calculations of how many drums I need depending on how big I make the dock. Right now I'm thinking of a 4' X 24' walkway out to a 16' X 16' floating dock. We'll see what the funds will allow come springtime!
