Hi.  I am a member of The Bike Connector, an earn-a-bike and bike collective program in Lowell, Massachusetts, USA.   We recently gained access to container (12m L x 2.3m W x 2.26m H; 40' L x 7.6' W x 7.4' H) to help manage our inventory of bikes and parts.  I want to maximize the capacity of the container, while allowing for easy access to the bikes.  I'm sure others have solved this optimization problem.