We built the colonial-style garden shed shown here from a set of mail-order building plans. the 10 x 16-ft. outbuilding has easy-to-install plywood siding, three large windows and two pairs of doors.. These 10 x 12 storage shed plans & blueprints will guide you in building a gable shed with wide double doors.. the wide doors will help you in storing huge equipment and tall objects. they also provide a convenient entry point for entering and removing items from the shed quickly and easily.. This step by step diy project is about diy 10