All lumber sizes are different once they are finished. for instance a "2x4" isn't 2 inches by 4 inches after processing. That's because the processes cuts some of the wood off.
Our finished lumber pieces (the ones marked with the "Plus" symbol), are a little thicker than the industry average. The benefit to you is that these pieces are more resistant to cupping and and warping when installed.
We know decks and decking material!