Storage shed plans. free shed blueprints for building an 8×12 storage shed with step-by-step building instructions and detailed diagrams. start building your own. Garden sheds in pa storage sheds on sale lowes portable storage shed quincy illinois garden sheds in pa plans to build a 10 x 20 shed garden sheds rhode island metal. Free shed plans including 6×8, 8×8, 10×10, and other sizes and styles of storage sheds. you’ll soon have your dream shed with these free plans..