When additional space isn't an option and you want to maximize the space you have, then the simple but powerful answer is "Rapini's Inn-Line Compact High Storage System" mounting two specially designed overhead tracking rails, which are mounted on the static units, you then can install any number of mobile units to run along the tracking rails between the two static units.
This system increases your storage space by up to 35%.
The Rapini Inn-Line Compact High Storage System is a free standing system that can be relocated at any time and does not require any drilling into walls or floors.
The system is modular, so you can add or delete mobile units, adjust the height between shelves and there is a large selection of shelf widths and depths.
Rapini has a "Patent Pending" on the Inn-Line tracking system, which is the most advanced overhead tracking system on the Australian Market.
The Inn-Line tracking system prevents the normal jarring and skewing which is associated with the guide rail systems and prevents back, shoulder and arm injuries caused by pushing heavy mobile units.
The Inn-Line tracking system carrys part of the mobile unit weight on top and part on the bottom wheels. Inn-Line is occupational, health and safety friendly.