Spalted Maple
Acer saccharum • Hardwood
Grain Pattern
Generally straight grain with prominent spalting (fungal discoloration) creating dark, winding zones of color and irregular wavy patterns.
Color Description
Creamy white to light reddish-brown body with high-contrast black and grey streaks (spalting marks). Tends to yellow slightly with age and UV exposure.
Hardness Rating
1,450 lbf (Hard)
Durability Rating
Non-durable to Slightly Durable; highly susceptible to rot if not kept dry, as the spalting process itself is an early stage of decay.
Common Uses
Woodturning, bowl blanks, high-end furniture accents, musical instrument veneers, and decorative boxes.
Geographic Origin
Northeastern North America and the Great Lakes region.
Market Value & Sustainability
Estimated Market Value
Approximately $12.00 - $25.00 per board foot depending on the intensity of the spalting figure.
Wood Age Estimate
Relatively recent harvesting (5-10 years) based on the bright color of the sapwood and lack of deep oxidation or heavy patina.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List; widely available and sustainable.
Workability
Generally easy to work, though areas of heavy spalting can be soft or 'punky,' requiring sharp tools and potentially stabilizers to prevent tearout.
Notable Features
Features distinct black 'zone lines' created by fungi; has a mild scent while being worked; dust can be a respiratory irritant.
Finish Recommendations
Clear film finishes like lacquer or polyurethane are recommended to preserve the color; sanding sealer is often necessary for porous spalted areas.
Identification Confidence
High; the characteristic black zone lines and creamy background color are classic indicators of spalted Acer species (Maple).