Deep walls — those over 6 inches — pose a problem for the carpenter installing windows: How do you create a window opening that is both efficient with time and materials and looks good? Over the last few years, I've developed a way to produce beveled, or flared, openings for deep-wall windows that is quick, easy to build, and attractive. Though I developed the method for 81/4-inch-thick structural stress-skin panel walls, the design works with windows designed for 2x4 walls in any wall from 6 inches thick on up. It makes the wall look even thicker than it is, and greatly enhances the quality of light in the room. The key is to frame the rough opening 3