Doug Tanaka wrote: >1/2" appleply... 0.0095 lbs./sq inch. 7/16 Russian Baltic Birch: 0.011 lbs/sq. inch. 1/2" Furniture grade Birch plywood from Home Depot: 0.0085 lbs/sq. inch. Does this mean the Home Depot stuff is an exotic, lightweight material? Isn't lighter always better? ;^) Bill T.