FYI, Ive never seen such inconsistencies with DOW products.Hey man just an FYI. I am researching materials for a client build. Called the Southern sales manager about foamular 600. He said it can be up to 1/4" off up or down off the 2". They deal with a co that can cut to 2" but price goes way up. If you get stock your foam most likely wont be even when layed up.