Ordering sheets of Rock Maple

I got this quote:

TO SUPPLY ROCK MAPLE VENEER SHEETS ONLY  (  CROWN CUT GRAIN )      -    (   NOT ON PLY)

Available sizes:

3000 x 1200 x .6

2700 x 1200 x .6                

2400 x 1200 x .6

0.6mm thickness would be too thin, right?
I'd want something more like 1.4mm?

I've asked them if they have 1.4 thickness available.