Welcome to the forum its a great place to get your questions answered. My advice is to take a trip to the storage facility with a tape in hand and measure your space that way you know for sure the space you have.
Jake my sidekick (yellow Lab) 10/04 - 05/20
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho