4 layers of 3/4" MDF, no hardboard top, going on 8 years of almost daily use. I flooded all sides of the top with BLO and have refreshed the paste wax every year or so.
I use holddowns and dogs of various kinds, I use the dog holes for accessories like a lamp and a magnifier but, primarily for holding material for hand planing as well as power tool work. Obviously the 3" thickness gives me some advantage but, you could make the rows where the dog holes will go 4 layers and leave the bulk of the top at 2 layers.
Last edited by glenn bradley; 12-03-2014 at 12:35 PM.
Any sufficiently advanced technology is indistinguishable from magic.
- Arthur C. Clarke