Now it's not as bad as it sounds. A client has designed her own dining table for her new home.There is a single pedestal and the top is 52" x 48" , with a couple of corners 45'd on one side giving seating for 5 with approx 24 " of more for each. ( clear as mud,eh). She is going to put tile on the top and I am wondering if 3/4" MDF would be good as a top under the tile ( substrate)? There will be a edging of Walnut around it that will be Dadooed to fit over the MDF.
The reason I am considering the MDF is that it seems to be flatter than 3/4 ply is. Will it be strong enough to be attached to the top of the pedestal with 4/4 hardwood on edge ?