How to Identify Butternut Wood (Juglans cinerea)

Heartwood usually light to medium tan, sometimes with a reddish tint; growth rings darker, forming fairly distinct grain patterns. Grain typically straight, with a medium to coarse texture and silky natural luster. End grain: Semi-ring-porous; medium-large earlywood pores gradually decreasing to small latewood pores, solitary and radial multiples of 2-3; tyloses occasionally to abundantly present; growth rings distinct; rays barely visible without a lens.

Janka hardness 490 lbf (side hardness: the force needed to embed a 0.444-inch steel ball to half its diameter). Specific gravity 0.38 at 12% moisture content, so a cubic foot weighs roughly 24 lb. Weight in the hand is one of the quickest checks: compare a piece of known size against a board you already know.

Butternut is a lighter-colored relative of black walnut, considerably paler and much softer/lighter in weight (490 lbf vs walnut's 1,010 lbf); walnut also has a faint mild working odor that butternut lacks entirely. The Black Walnut page has its own details.

Virtually no scent or odor when being worked; very soft, tends to leave fuzzy surfaces after planing or sanding.

Veneer, carving, furniture, interior trim, boxes, and crates.

Easily worked with hand and machine tools, but its softness causes fuzzy surfaces after planing/sanding, so sharp cutters and fine-grit sandpaper are recommended; no health reactions beyond standard wood-dust risk reported.

Photograph a freshly cut or sanded face in daylight, not a finished or stained surface, since stain hides color and finish flattens grain. Add a close-up of the end grain: cut a clean end, wet it or sand it to 220, and shoot from straight on; pore pattern and rays are the most reliable marks. Put a ruler in frame. The app suggests the likely species; confirm with the end grain and weight.