Some years ago the author, Jim Forrest, a professional engineer and model engineer of many years' experience, needed a purpose-built and relatively inexpensive workshop for his hobby. After discussing this need with Peter Jennings, a professional architect familiar with system build construction, a three-metre wide design was developed which proved to be very easy to build and easily the match for far more expensive types of building. This book was written as a complete work on the construction methods used. It not only contains the details required to build the floor assembly, walls and roof, but also covers all of the peripheral areas including layout, planning regulations, tools, materials, fitting out, security and insurance. The design is easily adaptable and most variants are covered including several floor types, lean-to construction etc., and illustrative drawings are used extensively to show precisely how the building is detailed.