How much space is enough for a self-storage unit?

This is a frequently asked question when writing a self-storage business plan.

To estimate the gross square feet of self-storage you will be able to build on your parcel, you can use the following coverage rates.

50% coverage for a level site with wide buildings and minimal water retention pond.

Much like car commercials you hear on the radio, these guidelines of how many self-storage units can fit on an acre come with a few caveats.