Geodesic Quonset Plans- $40 (Electronic Download). The first (and only?) example of a linear geodesic structure. Very strong, light weight, and inexpensive structure, ideal for garages, workshops, greenhouses, even homes. Can take a very heavy snow load, and extremely resistant to wind. Can be used to connect Geodesic dome structures, or freestanding on it's own.
tunnel dome build part 3 - like the shape, good for enlongated site