Den’s prefab A-frame kit is cut with CNC precision, so the pieces connect easily. The lumber is predrilled, and the kit includes all the bolts and screws for quick assembly—no need to run to the hardware store. As far as tools and equipment, the kit calls for a ratchet set, one or two power drills, a painter’s ladder, a step ladder, and a staple gun. The flat-packed materials even come packaged in the order in which you need them to help streamline the building process.