VEVOR Dog, 59.8 x 59.8 x 24.0in Whelping Box for Dogs and Puppies, Whelping Pen for Puppies, Dog Birthing Box with Rails and Washable Pee Pad, Whelping Box for Large Breed Dogs, White

Love this box!! Absolutely the best size for my German Shepherds! Easy assembly, adaptable, simple to keep clean! 60" is so much better than the 48"! Thank you for the excellent design!

Great concept and I would recommend it. However, I wish this box had an actual door. You have to continually remove the access boards every time the female needs to go out and the plastic boards crack easily if your not SUPER gentle when removing or inserting them and there are no replacement boards provided. Other issue I found is the velcro plastic caps do not stay in place and the washable pad shrinks after first wash so you have to really STRECH to make it fit again making it a two person task. I recommend buying additional larger pads and using those instead.