This thesis is about designing, through drawing and fabricating, a High-Performance Wooden Wall for Ontario. To achieve this goal, the dissertation is grounded in the following premises. First, the correlation between location and material. The Forest Regions have engineered the different tree genus by enduring each tree under a specific location and climate. This natural technology has been distributed accordingly throughout Canada. Second, the use of naturally engineered materials. In Canadian weather, when the winter is cold, and the interior of the building is warm, the difference in temperature produces higher pressure in the envelope, forcing air through the wall and stimulating its cleansing. This tissue-like condition of the fiber is ideal for air-tight building envelopes. This thesis will argue that science should be behind the decision while making a wall and that a high-performance wall should be treated as an artifact.