I am remodeling a couple of bathrooms and I am building the vanities. I am considering going modern and doing very clean design vanities with flat panel doors and drawer fronts. They would be veneered in something special, maybe quarter sawn Sapele or something like Zerbra wood. The question is what substrate to ensure they stay flat over time, and also something that will handle a bathroom environment. I'm hesitant to use MDF. I have used Baltic Birch with success but it seems like the stuff I get for the past few years warps more than the stuff from 10-15 years ago.
Suggestions?