We currently are taking Addy & Opie to conformation classes, but our kennel club doesnt have a ramp. Since they will more than likely use a ramp at shows I would like to build one for us to practice on at home. Does anyone know approximately how tall the actual ramp is? I was thinking it looked about 18 inches, but I wasnt sure. It doesnt have to be exact but I want it to be kinda close. They are terrified of the table during class.