my beagle is almost one year we use a crate 24x 36 inch. this seems to be enough room for him. They say he/she should be able to stand up and also be able to turn around this is something i read. Right now im home with him all day so he only go's in it when he is tired however he sleeps in it all night. Beagle Pro | Leaving Your Beagle Home Alone this is a site for some info and you can find a lot more. How long will he be in the crate ?