Here is a goal: To make a case for your chess set

Which way makes more sense to accomplish this goal?

OPTIONS:
(A). Build the wooden frame using wooden pieces and have a slideable section in the hollow center using a metal strip for the drawer. There you will put your chess pieces.;
(B). Build the wooden frame using wooden pieces and have a slideable section in the filled center using a metal strip for the drawer. There you will put your chess pieces.;
(A).