I have an enclosed Aluma trailer. It is an all aluminum trailer save the axles and hitch. I really like the light weight and extruded aluminum floor. It required a little extra effort to add floor tie downs, as it only came with four, two in front and two in back. It has a fairly grippy finish on the floor, but can be a bit slick when loading stuff with wet tires. Very durable and easy to wash out. But all in all, an excellent trailer.