This tower is exactly what I was looking for. 3" x 3" 11 ga. steel is the real deal. The weight plate holders only add to its stability, but you'll be fine even without them. It's pretty hefty on its own. Titan Fitness offers several attachments for this rack but you aren't limited to just Titan's attachments. With 3" x 3" 11 ga. steel, you have a metric ton of attachments at your disposal, just search online and watch reviews. My order arrived within 2 business days. Crazy fast shipping and it's FREE. Love the tower, and I now love the company. Will order more in the future.