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.. Our storage shed plans are organized so that you can buy shed plans and build your own shed no matter what your skill level. there are helpful how to build instructions and tips that go along with each stage of the storage building process from the foundation, floor, walls to the roof.. Building a 12