Exterior and Tiny Home Building Type To keep the project close to their $10,000 budget, the family looked for bargains whenever possible. The circular window was a misorder they snagged for 90 percent off from a local building supply store. The mahogany siding is a mix of Craigslist purchases and Dumpster finds.  Photo 2 of 8 in A Family Builds a Tiny Backyard Studio on an Even Tinier Budget