I am building a walk in cooler to store deer in. The small town where I am working has no deer storage available. I may also make another to place in the neighboring town, as they have no such facilities either. I will try to keep this updated with the stages of construction. I am planning on a 4' X 8' X 7.5'. Here are pictures of the I beam for skids, c-purlin, and angle iron for the construction. Also a door and the ac unit for cooling.
