To make it right you need a c-n-c machine but actually it's a easy build. But it's big and heavy and you better have a good reason for owning it. I wouldn't have one if I even had 1 game dog on my yard. The way the media can twist things now you would be called a "professional dog fighting conditioner" even if you just get a kick out of letting all your dogs Play on it for fun. Build it at your buddy's that don't even own a dog..