Menards sells the ACQ2 treated wood. It is no different than the CCA treated wood, except it has no arsenic dirivitives. The prices on the boards vary but no are over a dollar per board higher. I am sure these prices will stabilize in the future. There is a difference in color with the ACQ being a little lighter. But it is still pest resistant and will except stain and deck perservative the same as CCA. Any other questions I will be happy to answer.