Here is what the Vermont Mini Cabin cost me:
Pressure-treated lumber (Home Depot) $100
Rough-sawn lumber (Eagle Saw Mill) $704
3/4″ plywood $568
Nails, screws, other misc. supplies $200
Ship-lap pine siding $600
Metal roofing panels and flashing (Fabral) $936
Clear pine for trim $180
Steel door $100
Windows (12 Pella ProLine casements w/screens) $3623
Stove (Morso Squirrel) $1100
Chimney and stove pipe (Simpson) $500
Flooring (Forbo Marmoleum Click) $502
Cost before adjustments $9458
Forgone BMW purchase ($44,260) …’cuz that’s what my friends are buying instead of doing stuff like this.
12 days labor of high-priced innovation consultant (not thinking about that)
Net Savings $34,802
Incidentally, I purchased the site for $8500, plus another $1000 or so in legal fees and transfer fees/taxes. (One of a half dozen lots I was able to aggregate in a largely defunct development.) So, even including the land costs, this project was well under half the cost of the BMW, and I believe it will be around a lot longer than that car would have been.
Incidentally, Dunn Lumber has an excellent site with prices listed for most lumber-yard items. This is a great reference for cost estimating, even though you most likely will not purchase from them unless you live in their service area.