STEREOTOMY: HIP & VALLEY ROOF GEOMETRY IN TIMBER FRAMING Dec 7–12, 2026
OVERVIEW:
Stereotomy is an ancient method of developing complex three-dimensional forms using a handmade geometric drawing instead of numeric calculation. Used by master stonecutters and timber framers dating back to medieval times, stereotomy is a powerful approach for understanding and laying out intersecting roof systems, compound angles, and other challenging structural geometry. In timber framing, stereotomy allows builders to move beyond formulas and develop a deeper spatial understanding of how roof forms are designed and constructed.
In this course, students will explore the language of stereotomy through a progression of three increasingly complex scale models of hip-and-valley roofs. Students will each create their own stereotomy drawings and then use them to lay out and build each model. Beginning with fundamental roof geometry and advancing toward more sophisticated intersections, emphasis will be placed on understanding the geometric relationships that govern roof framing, developing accurate layout skills, and translating two-dimensional drawings into three-dimensional structures.
Students will leave with both a practical understanding of roof geometry and a set of unique hand-crafted models and drawings to take home.
Schedul e:
Monday: 9AM - 4:30PM
Tuesday – Saturday: 8:30AM - 4:30PM
Note: Lunch will be provided throughout the course
Instructors:





