Maple platform under turntable, How thick?

Under my Teres 320 I've been using a three-inch thick, two-foot square maple from Tony's Woodshop (look under multimedia storage). Its not Amish, but a few yrs ago it was ~$75 w/ shipping. The maple block sits on doubled-up corrugated-rubber-and-cork pad thingies like Mapleshade sells, but got them much cheaper, example here: http://atlantavibrationpads.com/rubberandcorkpads.aspx

Thank you. But I want Amish dried air made! Oops. I mean air dried Amish made.
I'll take a look at Tony's.

I am using a 2.5" solid maple board under my Spacedeck. It is placed on a combination of squash balls and those Mapleshade cork/rubber footers. I've put the NAS supplied board on top of this for additional isolation, which may not be necessary. Works for me. ;-}

Since I am going to keep the platform under the deck on the floor, I think I will need either metal or possibly carbon fiber cones or maybe Boston Audio tuneblocks though I will try Mapleshade cork/rubber things too. I will go with either 4" thick maple from Mapleshade or 3" thick from Timbernation. And I will use Nottingham supplied platform for my Nakamichi deck with Polycrystal cones under it.
I am ready to sacrifice some warmth in sound for better dynamics though I won't tolerate any ringing.