Z-Beam ZB1500 72-Inch Wide by 18-Inch Deep by 72-Inch High Heavy Duty Rack, Light Grey

These z-beam shelves are simply awesome. They're easy to setup and take down without tools, and are rugged enough to stand up to your serious storage needs. I have several in my basement and workshop, and they look good and have a nice paint (powercoat?) thickness that seems to stand up to unconditioned spaces very well. You used to be able to get these at the Depot but they seem to be carrying a lower strength sku these days. I wish there were an easy way to order extra cross beams to add a shelf, but still and all I highly recommend them.