The isosceles triangles are strong, inexpensive stressed-skin panels, 12 feet at the base and eight feet high, prefabricated of fir structural members and plywood, bonded together like a Head ski. Brewer's houses combine these triangles into a remarkable domestic geometry of gables and slanting walls. His own ski house, in Vermont, shown on these pages, was built for $10 a square foot. The panels sweep down to windows set directly into the floor. In Connecticut he has adapted the system to a boat-loving family's waterside house (pages 34, 35) that is something else again.