The paper highlights the fact that if the radius isn't too tight, building curved walls is straightforward. The paper basically describes a whole-house remodeling project that makes use of two different techniques for framing curved walls - one for an exterior wall and one for an interior wall. The plans called for a somewhat unconventional exterior curved bay. Instead of being a curved section of the exterior framing, the bay was really an applied decorative element, attached to the outside of the existing flat wall. The bulge was curved on the outside only; the interior side of the wall stayed straight.