Built this along with my skid lumber coop. First I utilized the calculated cubic inches of a 50# bag of food that another forum member posted (approx 2500 cubic inches). I divided that by the width between the side supports and once again by distance between the top boards and bottom boards. The resulting number was how tall or long I needed the feeder to be. I cut the skid in half. Attached oversize boards on the back side to aid in hanging at any desirable height. Cut some scab pieces for the angle diverter and to make a catch bin for the food. I took more boards from other skids and nailed over any gaps. Dump the entire bag in from the top So far working great.