I was away this weekend with my family for a trip to Chester Zoo. We stopped at a farm shop just outside for a cuppa and a nice slice of cake. There was an antiques place next door that had these slabs of wood - I'm told it is mahogany, and it certainly looks like it under the varnish. 45mm thick - a few screw holes but they can be avoided. Couldn't resist, had to fit a couple of pieces into the car boot as it was cheap (£25 for both bits) !!!