thanks ill try that
all these are 36 wide,12 deep and 72 length. I have experimented on two blocks so far just to get the feel for it and have 9 more left to actually make it. Im thinking out of the cut up ones ill just use a template to lay on the other ones to mark it instead of measuring all of them, that way lay the template down and mark it that way so dont have to keep measuring all the time.
As far as making trays be hard to do if i sell them since not everyone has the same size boxes so may just put in cup holder on each side then if they wont holders a certain size then cut them in then.