As a breeder of Great Danes, I have 7 of these. You would think that if you're creating and selling a product geared towards dogs 120+ lbs, you'd make and sell a product designed to stand up to the weight. You'd think wrong. The tray in this kennel is so thin, cheap, and flimsy if it's not already cracked and broken upon arrival, it will be soon after.
I have very mellow crate-trained danes. They are not "hard" on their crates by any means, but ranging from 115-160lbs, they're heavy. The tray in these things cracks along each of the wires on the undergrid. After going through MANY of these suckers, replacing the tray for $50 a pop, I found a solution.
Placing a mat or rug or blanket.. anything with some cushion, between the grid and the tray solves this problem, entirely. If your tray is already cracked and destroyed by the weight or your giant breed dog, duct tape the underside of the tray, and the top, and then put a rug under it. I just buy fleece at the fabric department on clearance, and double layer it on all of mine- it's a pretty cheap solution.
The rest of the crate is sturdy and hold up very well. I wish the tray could just be fantastic as-is. But it's not, and there's no better one out there, so that's what we've done to make do with that we have.