Self storage unit set up

[Shane Hobbs]

A storage unit I looked at recently had one roll up door to access 8 small 5 x 5 units. This seems like a security issue to me, am I to paranoid?

[Scott Meyers]

Most facilities aren't set up with a Rollup door as entry into a hallway - we use Exterior, secured, steel entry doors to enter the shared hallways.  SOme have locks, some don't.  If the facility is fenced and gated, the only folks allowed in should be the ones with access.  However, someone could hop a fence and hang out in the hallway if the doors weren't locked.  

so long answer to your question is - just lock the main door and don't worry about it.   However, a picture might be more helpful to provide a different solution.