Building Small Barns, Sheds & Shelters. Extend your working, living and storage areas with low-cost barns, sheds and animal shelters. Building Small Barns, Sheds & Shelters provides basic, easy-to-follow construction methods for attractive outbuildings. Here’s complete information on tools and materials; foundations and floors; framing, sheathing and roofing; windows and doors; wiring and plumbing; and finishing details. Specific plans and how-to-build instructions for popular home and family-farm structures.