Hello!
I think that the solidbody guitar body thickness varies a lot. There are no standard mesurements, but comun mesurements. From my experience, I think that guitar with less than 4 cm thickness are obviously lighter, but also less deep sounding (depending on the wood, yes, this is generaly speaking) and guitars with more tham 5 cm thicknes will be deeper sounding and obviously heavier. The balance betwin these two mesurements will prove to be the best for overall playability in sound and confort.
I sugest you to choose what fits you better. The guitar's shape is not directly dependent of its thickness!
This is the overaal guitar thickness talk, now if the problem is the wood layers' thickness, well, I've seem many many things, and that dependes a big lot on your visual and musical sound likes and deslikes.
Hope to have helped in something...