This is the only storage shelf I will buy moving forward. It's so easy to install and the all-metal materials make this a strong and sturdy unit. I just moved into a new house and needed added storage space in the garage. Typically I have bought those metal frame units with the partical board shelves. Those however have not held up over time and they start to sag or fall apart sold any liquid gets on them. However that is NOT a concern with the Gladiator. No tools are needed to install, just simply snap and lock the pieces in place and you are ready to go! Also the 1800 lbs PER SHELF capacity is unbelievable!! From tools to supplies to kids toys, this can handle it all. Seriously, buy this shelf!