Sitka Spruce
Picea sitchensis • Softwood
Grain Pattern
Straight, fine, and even grain. Highly consistent growth rings, often quarter-sawn (as shown in image) to produce vertical grain with 'silky' medullary ray flecks and occasional bearclaw figure.
Color Description
Heartwood is typically a creamy white to light pinkish yellow; sapwood is not clearly demarcated from heartwood. The wood deepens to a distinct honey-gold or reddish-brown patina with age and light exposure.
Hardness Rating
510 lbf (Soft)
Durability Rating
Slightly Durable; poor resistance to decay. Not suitable for ground contact or outdoor use without treatment.
Common Uses
Acoustic guitar soundboards, piano soundboards, aircraft components, boat building (masts/spars), and high-end millwork.
Geographic Origin
Pacific Northwest of North America (from Alaska to Northern California).
Market Value & Sustainability
Estimated Market Value
$10.00 - $30.00 per board foot for instrument-grade 'Master' or 'AAA' sets; lower for construction grade.
Wood Age Estimate
Based on the deep golden-honey oxidation and the type of finish, this instrument soundboard appears to be at least 15-30 years old.
Sustainability Status
Not CITES listed. Classified as Least Concern by IUCN, though old-growth stands are increasingly protected and rare.
Workability
Excellent workability with both hand and machine tools. Glues and finishes well. Low density makes it prone to denting; requires sharp blades to avoid crushing fibers.
Notable Features
Outstanding strength-to-weight ratio and acoustic resonance. Features a characteristic light, resinous scent when freshly cut.
Finish Recommendations
Nitrocellulose lacquer or shellac (French polish) for instruments to allow for vibration. Oil or polyurethane for furniture applications.
Identification Confidence
High; the tight, vertical grain spacing, characteristic silk/medullary rays, and golden oxidation are diagnostic of a high-grade spruce soundboard.