A truck trailer is dropped off at the packing location - when done, they send the cab back to pick up the trailer. The trailer can be dropped off at an unpacking location. (You can also bring/take items to an ABF transfer station and pack/unpack the truck to save some bucks.
Based on quotes over the phone, the ABF Upack solution saves around 50% vs. a PODS or similar type of storage container solution. Also, a POD holds a huge amount of material and may be too large for your move.
This example shows a large load of items being transported from Indiana to NJ. My brother in law packed it at a public storage facility next to their locker - I unloaded it into a rented 15 passenger cargo van. (I particularly like Just4Wheels for their economical van rentals) if you are NJ local.