Build this heirloom garden shed by yourself in just a week! In Build an Heirloom Garden Shed , Justin Fink of Fine Homebuilding magazine walks you through the process of fabricating and assembling a shed that does not require stud walls, asphalt shingles or a single sheet of plywood. From the solid-plank floor to the cleverly designed roof, this timber-frame look is achieved without expensive materials or a high level of skill.