Here are some really thorough instructions for building geodesic domes. This particular set of plans was developed by some Burning Man attendees who wanted a comfortable structure that would stand up to the elements. The dome is made of 30 triangles cut from double layered cardboard, 5 wood triangles with vents, 5 wooden doorway triangles, and 5 cardboard doors. The majority of the triangles are bolted together to form pentagons that are then bolted to each other. With all of the triangles painted and seams sealed with duct tape the structure is water proof. All of the dimensions and assembly instructions are provided to create a dome 12’7″ in diameter and 6’3″ in the center.