I purchased these containers (called smart bins), I bought them at walmart (in automotive dept) for about $40 each (i think) they will fit 5 mfc nicely, or three fuel cans and a 20# propane cylinder, note these will not hold three 20# propane cylinders only two (weird). these are my photos. These suckers are heavy! Get a buddy to help lift it or load the cans after the box is on the rack hope this helps!