Can this be installed in a bathroom under a toilet? Thank you.

Hello jimb - thank you for your inquiry. Yes - the ProCore Plus Dove Tail Oak can be installed under a toilet. You will want to keep the same type of expansion gaps around the toilet flange - this will obviously be covered and not seen by the toilet. It is also not necessary to caulk around the toilet once you have it in place. Reason being, you will want to make your toilet connections and test it for any leaks. If the toilet is sealed / caulked, you wouldn't be made aware of any leaks around the flange until too late. Hope this helps answer your question. Thank You -