I’m about to launch my site and need storage for about 1300LBS of dog food – I found a self storage area – how much space needed?

These self-storage companies doesn't offer a lot of space. Its usually between 6-10 square meters / 65 square foot to 108.

I have no idea if its enough space compared to how much LBS im buying – does anyone have any experience with this? Thanks! By the way, I'm located in Denmark