I'm just wondering what sort of a top is best in terms of material/depth. The deepest cut sheets I can buy are 28mm or just over an inch, so I was thinking of gluing two of them together and putting a 2mm aluminum cover on top of that(easier to wipe dust off). Then I remember somebody recently stating he would advise using a kitchen top...not sure about that given it's basically covered chipboard. It would seem less sturdy than bolted wood. So I'm wondering, if weight isn't a problem, what would the best top be for a bench?