Linenfold carving originated around 1450, and surviving pieces show how stylized it became before being replaced in the Renaissance by floral patterns. Rick Bütz recommends using hand tools, though you can make linenfold using routers and circular saws. He uses a rabbet plane to raise the panel, a plow plane to define the straight, parallel grooves, one or two round planes to waste the hollows, a small block plane for the convex folds, and a few gouges to carve the end folds. He shows typical linenfold designs and then shows and explains how to carve them, with tips such as not taking the background down any more than half the thickness of your panel.

From Fine Woodworking #36