The lining has been quite a labour intensive process, especially when reusing secondhand materials. I love the effect, a brand new building with built-in character. I've spent about 112 hours all up on the weatherboard (and plywood) lining, while it takes a lot of time the $ cost isn't huge. All weatherboards used have been recovered from the original house that was deconstructed. Plywood was purchased in bulk, is made in New Zealand and FSC certified.