Anyone who has ever had a trailer knows what a nuisance the gap between the trailer and trailer door is when the door is down. Like many others you have tried to fill the gap in with wood or some other object that doesn't work. Those days are gone - for good. JEGS Trailer Door Transition Cover offers you a permanent solution. The cover safely and effectively covers the transition and allows you to easily roll your vehicles in and out of your trailer without interference from the transition. The cover features a stainless steel piano hinge and mounts directly to your trailer floor (can be screwed or bolted - fasteners not included) to prevent any movement while in use and also allows the cover to go up and down with the trailer door for simple self storage. The covers are made from high quality steel and have a 2000 lb. rating (per axle).Dimensions: 42.25" x 12"