Pet Adobe Washable Artificial Grass Dog Pee Pad with Tray, X-Large: 41 x 27-in

My dog has yet to use this, but it isn't because of this product. She slipped on another brands version with a tray, and is now afraid of the any with a tray. She used to love going on her grass that was about this size. My dog is only 15lbs, but this is a good size; especially if you have a disability or a reason why you might need your dog to use the porch more often. It comes with pee cloths that are well made. We haven't tried using it with them and don't really plan on it. We mainly like the draining features that look awesome with this mat. I would still highly recommend it. If you are strong enough and your arms are lengthy enough to lift this when it's full of urine, it will make cleaning a lot easier. We're going to get an attraction spray and see if it can entice her. I do think a large dog could use this in a jam, but not for every day or more than 3 times a week. To give them enough room, you need at least one side to be twice their length. My dog likes to sniff around before finding her spot. If your dog doesn't need to do that then this one would be fine at any size. I would recommend getting grips to put on the bottom so the tray can't move on concrete or hard flooring. I wish they would include those, that's the only thing that could make this better. You can also take the grass off and start with that if they are afraid of the tray like mine. I know she'll end up using it and I'll be so thankful when she does.