As a general rule place large, heavy items that you can stack upon at the rear of the unit. Then work forwards and upwards with lighter, fragile items. Place those items that you may need to access often in the front of the unit. Depending on the goods you have stored, you may need to allow for walk ways. Packing in professional storage cartons will make the stowing and unpacking easier and safe, saving you time and worry. Professional packing and the storage accessories will provide your goods with the preparation they need for storage and maintain their condition for the term of storage.