Because a tiny house is built on a trailer you have to assume that it will be driven on the road at some point.  Assuming a maximum speed of 75mph into a 20mph headwind we are designing for a 100 mph wind load.  That is the equivalent of a category 2 hurricane. For this reason, we are gluing and screwing all framing members rather than using traditional nails.  Today we built the double plates (sits atop the wall studs) and window headers (sits atop the window openings).  As shown above, we used our very straight ridge beam to help straighten out one of the double plates during glue-up.