What is the best way to: How can you make a space saver rack in your garage?

Pick your answer from: I. Build racks, from screwed-together 2x2s, It's quick, easy and inexpensive, use 5-in. lag bolts to secure the racks to the floor joists but be sure to leave several inches of clearance between the bottom of the rack and the opened door.. II. Build racks, from screwed-together 2x2s, It's quick, easy and inexpensive, use 5-in. lag bolts to secure the racks to the ceiling joists but be sure to leave several inches of clearance between the bottom of the rack and the opened door..
Answer:
II.