King's Rack 4-Tier Boltless Steel Storage Shelf with 8 Plastic Bins - Heavy Duty Garage Shelving Unit for Home Organization, Warehouse, Retail Store & Workshop Storage Solutions

Was able to stack using the front crossbar as a join between the two racks. However this rack can be improved with adjustable footing as my garage slightly grades down for drainage. The rack should also have diagonal crossbars to improve sturdiness and reduce sway. Lastly, I want to stress the importance of adding earthquake straps to ensure the product is less likely to topple. Even if you decide not to stack.These shelves are great for organizing all of the odd-size, smallish items in your garage.And unlike tubs, you can easily see-in and you can separate things so they are easier to find.This is a good rack for holding hardware. It seems a bit on the pricey side for what you get but it gets the job done. Construction is well done and easy to assemble. i would happily buy 2 more if the price was greatly reduced.If any issues arise contact Kings rack directly they have a good customer service they respond quickly.I needed some type of cabinet or locker to keep miscellaneous tools, bits, gloves and parts that are used often but did not have a home unless mixed in with other stuff. This unit allows me to keep like items in an easily assessable bins which also forces me to put them away easily when done. Compact enough it fits nicely in a limited space. There was a shipping problem - carrier smashed one side. All that was damaged was the top shelf. Seller immediately sent a new one. Great customer service. Trustworthy company.Use a heavier box! The box had holes in it!Product wasn't damaged but it could have been for how big the holes were!It's coming from CHINA!!!Use common sense!This works for what I needed but I would suggest you take measurements and make sure it is the right length and height for you.Good product when assembled. A piece of paper with a small diagram of how to assemble is included with small drawings of parts and a written instruction that doesn’t make sense. A head scratcher certainly.Be warned! You will assemble and disassemble a few times before you get it right. A YouTube instruction would be so helpful.