The animation to the right demonstrates what you can put into a 10' x 15' unit. The contents are as follows:

7' sofa stood on end to save space. Sofa cover available in our store.
Refridgerator (leave doors open to prevent mold from growing).
Bookcase.
Two large boxes (24" x 18" x 18") stacked together. Available in our store.
Wardrobe box (24" x 18" x 46") stacked on top of large boxes. Available in our store.
Microwave/TV/Computer box (24" x 24" x 24"). Available in our store.
Dish Pack box (18" x 18" x 28") stacked on top of microwave box. Available in our store.
Two medium boxes (18" x 18" x 16") stacked together. Available in our store.

As you can see there is still plenty of room for a couple of beds, the dining room table and chairs, more boxes, washer/dryer, etc. Moving, packing and storing supplies are available in our store.