 Spruce, for example, is very common, but large pieces with even grain represent a small proportion of total supply and can be expensive.Some tonewoods are particularly hard to find on the open market, and small-scale instrument makers often turn to reclamation, for instance from disused salmon traps in Alaska, various old construction in the U.S Pacific Northwest, from trees that have blown down, or from specially permitted removals in conservation areas where logging is not generally permitted.Mass market instrument manufacturers have started using Asian and African woods, such as Bubinga ("Guibourtia" species) and Wenge ("Millettia laurentii"), as inexpensive alternatives to traditional tonewoods.