The document provides instructions for building an Iroquois longhouse in 5 steps. It begins by describing what a longhouse is - a long, narrow bark-covered building with fire pits and doors at each end used by Iroquois families. Step 1 involves setting vertical poles in a rectangular formation. Step 2 has horizontal poles tied over the vertical ones to form a foundation. Step 3 creates the sloped roof frame. Step 4 covers the outside with overlapping elm or ash bark shingles. Step 5 adds an outer pole frame and finishes the longhouse, leaving smoke holes over fire pits.