Hi, Gina. I am pretty sure that is ACX plywood from a local lumber yard. Dunn Lumber would have it, for example. The A refers to the higher-quality appearance that you see here vs. something that is more commonly covered up like CDX. It is not exotic but plywood costs have gone way up over the last couple of years. The other thing to know is that this had a light gray stain applied over it to seal the wood and mute the strong orange tone of fir. Good luck with your project!