waney

A waney is an irregular or missing edge on a board, typically found on the side where bark or partially squared sapwood remains on the freshly sawn timber. When a log is converted through a sawmill without being perfectly squared first, or when a board is ripped from a log that retains its original contour, the resulting edge may be waney: either rounded where the log's natural curve survives, or feathered and sharp where bark has fallen away. The wane can span anywhere from a thin sliver to several inches along the board's length.

Waneys occur most commonly in through-and-through sawing, where boards are cut parallel to a radial line without first squaring the log, and in live-edge or natural-edge milling, where the bark is deliberately left on or only partially removed. They also appear when a squared log has a hollow section on one face that creates a concave edge as sawing proceeds. The severity depends on log shape, sawing pattern, and whether the bark is tight or loose at the time of milling.

Problems and Detection

Waneys present real problems in woodworking: they cannot be glued or jointed reliably, they weaken joints, they interfere with accurate layout, and they catch and splinter during handling. A waney edge cannot bear load or provide a reference surface. Detection is straightforward, however. Run your hand along the edge; a waney will feel sharp, loose, or hollow rather than solid and true. Sight along the edge against light; genuine wane appears as an irregular, often curved contour.

In commercial grading, wane is a defect that reduces board value and restricts use. Specifications for trim, flooring, or furniture components often exclude boards with wane beyond a certain tolerance, typically quoted as an acceptable length or depth of wane along the board edge. Woodworkers planning to use rough-sawn or partially squared stock must plan to rip off waneys or allowance for them in layout, since jointing and planing will not fix an irregular edge when the wood itself is missing.

The term derives from an old English word meaning to lack or be deficient. In sawmill practice, calling an edge waney signals that it is not a true, working edge and requires treatment before the board enters the finished product pipeline.