Hello everyone, I just purchased the intermediate size ruff tough crate. My 50 lb English Springer fits in it fine, he is a little cramped, but probably the way you would want it for safety purposes. That being said, I will be getting a lab in the near future and would like a crate that would be suitable for a grown lab as well. I have seen where some guys are using the intermediate size for labs, which I feel would be rather cramped for them. I was hoping to get some feedback from some knowledgeable people on this forum. Intermediate Dimensions: 20" wide X 23" tall X 31" deep, Large Dimensions: 22"wide x 26"tall x 35" deep