Knotty Alder — Alnus rubra

Knotty Alder

Alnus rubra · Hardwood

AI-generated identification · may be incorrect
Type
Hardwood
Origin
Pacific Northwest of North America.
Hardness
590 lbf (Soft)
Durability
Non-durable, with poor resistance to decay and insects when exposed to elements.

Got a wood sample like this?

Identify any wood from a photo, free.

Take Wood Identifier with you

Snap a photo and identify any wood species in seconds.

Download Wood Identifier on the App StoreGet Wood Identifier on Google Play

Grain Pattern

Straight, uniform grain with frequent tight knots and occasional swirling around branch points.

Color & Appearance

Light brown to pale yellowish-pink with minimal color distinction between sapwood and heartwood, darkening slightly with age.

Hardness (Janka)

590 lbf (Soft)

Durability & Decay Resistance

Non-durable, with poor resistance to decay and insects when exposed to elements.

Value & Age

Estimated Market ValueNot an official valuation

$3.00 to $5.00 per board foot.

AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.

Wood Age Estimate
Estimated 5 to 15 years, based on modern cabinet construction and minimal surface patina.

Common Uses

Cabinetry, interior doors, furniture, millwork, and turned items.

Geographic Origin

Pacific Northwest of North America.

Workability

Excellent workability with both hand and machine tools, though its softness requires care to avoid denting during sanding.

Finish Recommendations

Takes stains, dyes, and clears like lacquer or polyurethane exceptionally well without blotching.

Notable Features

Features characteristic dark knots and pin clusters that create a rustic, distressed aesthetic.

Learn more about Knotty Alder in the Wood Encyclopedia
Identified November 3, 2026