For the Planar Chair, BSC attempted to reduce the chair typology to the fewest planes possible "according to its geometry, function, and use." The firm writes, "While the planes are expressed as simple rectangles, their orientation in space registers the non-Cartesian angles of the human body at rest. The planes intersect equally, so that no plane dominates the others. This intersection of planes, isolated from their infinite projections, illustrates the geometric event."