Free garden shed plans . do you need a spot for your garden tools and supplies? how about a bright room for your potting bench? here are some free plans for potting. A shed is typically a simple, single-storey roofed structure in a back garden or on an allotment that is used for storage, hobbies, or as a workshop.. Shed plans can help you discover how to build a shed for the lowest price possible. building a shed using shed kits can be very costly. here are some free shed.