I built standard trusses for the roof. For the sheathing, I used old shiplap from my remodel project in my 118-year old Victorian house. The DIY dog house ... look of PEX or PVC in view front ...

This CNC router for PVC pipe is a great example of harvesting ... where it rotates under what looks like a piece of truss from an antenna tower. The spindle seems a bit small, but it obviously ...