We are North America's largest Trailer, RV, and Diesel Pusher Superstore! At Allan Dale, we are very proud of the products we sell and service, and we want to earn your business! Allan Dale is one of Alberta's largest trailer superstores serving the equine, cattle, livestock, construction, and oil field industries predominately but has expanded into the Recreational Vehicles (RV's) with several lines of towable RVs from leading manufacturers.