Horse Trailers For Sale Easy to Tow with Less Weight For over 17 years Double D Trailers has been producing quality horse trailers using the latest and most innovative safety features. Using cutting edge equipment and technology, our craftsmen hand construct your new trailer to fit your family’s specific need. Come Scaricare Il Software Entratel. From engineered drawings to your customized horse trailer with living quarters, our state of the art manufacturing plant will accommodate any design. And best of all, it's all available to you from the comfort of your home.. The Double D Horse Trailer Difference Durability, Light Weight and a Value Price Many horse owners think all aluminum horse trailers are the best for weight savings. Aluminum is a light weight metal, but is also easy to bend and break.