Oak, ash, walnut: a plain guide

Three woods account for most of the furniture worth keeping, and knowing them takes ten minutes. Oak is the heavyweight: pronounced open grain, high hardness, the wood of table tops and floors that expect decades of traffic. It starts pale honey and deepens amber with light; soap-finished, it stays nearly blond. Ash is oak's lighter-handed cousin — similar strength, straighter and subtler grain, notably more flex, which is why steam-bent chair frames are so often ash. It stays pale and takes stain evenly.

Walnut is the dark one, and the only one of the three that lightens with age rather than deepening — chocolate brown mellowing toward honeyed grey over years of sun. It is slightly softer than oak, carves beautifully, and costs the most, which is why it appears as veneer far more often than the others. Veneer is not a scandal; on a stable substrate it behaves well. But check edges and undersides, and expect solid walnut prices to make the case for choosing it only where hands and eyes will actually land.

The buying logic, then. Surfaces that take abuse — dining tables, desks, floors — want oak, oiled rather than lacquered so scratches sand out. Frames and chairs can be ash, and save money being it. Walnut is for the pieces that are looked at as much as used: the sideboard, the low table, the bedroom. All three prefer oil or soap to thick varnish, and all three age well if allowed to actually age. Buy the wood for the job, and every one of them will outlast the trend it arrived in.