No nails, screws or power tools of any kind. I disappear into the Canadian wilderness without food, matches or modern hunting gear. The Cabin was built with an axe, handsaw, snare wire and my pocket multitool knife. The only tools I have to feed myself is a recurve bow, gill net and snare wire. I came prepared with my tipi hot tent and a small wood stove, to use as my base camp while I dig into the land and prepare for the coming winter. The entire trip was a total of 46 days. Since I was surviving, I couldn't spend all of my time just building the cabin. Stopping and taking the time to find food to eat and dry wood to stay warm each night was vital. I lost over thirty pounds of my body weight during this trip, eating nothing but what I could find on the land.