I purchased 50 boxes containing 6 ceramic tiles each. There are two 16" x 16" tiles, one 16" x 24" tile, two 8" x 8" and one 8" x 16". How can I create a pattern with a 1/8 inch soace between them. I have tried, but I can't figure it out. Any math specialists here? The 8" squares tiles seem to be giving me a difficult time. For example, If I put two 8 x 8 with a 1/8 space between the two beside a 16 inch tile, the joints do not join. There has got to be a pattern that works! Please help.