My box is pretty sealed from the rest of the trunk but probably not 100%.
If i use my max width between wheel wells and max height and depth i can get about 9 cubes. My 18 only takes 3.5-5 cubes though so it fits nicely using some height from the spare tire well.
If i use my max width between wheel wells and max height and depth i can get about 9 cubes. My 18 only takes 3.5-5 cubes though so it fits nicely using some height from the spare tire well.