Does any manufacturer make plywood sheets in 5'x8" or5'x10' in 1/2" thick?

All I have been able to find is 5'x5' baltic.

I need to have 10 or 12 pieces, 30"x 72" (nominal size) , and ripping that
from 48" sheets is pretty wasteful. Even if I paid a premium for the 60"
sheets, I think I'd be $$ ahead.

Suggestions appreciated.

BTW, Atlanta area.