How to Identify Ponderosa Pine Wood (Pinus ponderosa)

Heartwood reddish brown; sapwood yellowish white. Straight grained with medium texture. End grain: Medium-large resin canals, numerous and evenly distributed, mostly solitary; earlywood-to-latewood transition fairly abrupt with variable color contrast; medium-large tracheid diameter.

Janka hardness 460 lbf (side hardness: the force needed to embed a 0.444-inch steel ball to half its diameter). Specific gravity 0.4 at 12% moisture content, so a cubic foot weighs roughly 25 lb. Weight in the hand is one of the quickest checks: compare a piece of known size against a board you already know.

Although classified as a yellow (hard) pine, Ponderosa shares white pine's comparatively low density, having considerably lower density than the yellow pines of the eastern US; western growing region and slightly higher hardness (460 vs 380 lbf) are the practical tells. The Eastern White Pine page has its own details.

Faint, resinous odor while being worked.

Veneer, plywood, sheathing, subflooring, boxes, crates, posts/poles, interior trim, cabinetry, and construction lumber.

Works well with hand and machine tools; glues and finishes well; pine reported to cause allergic skin reactions and/or asthma-like symptoms in some people.

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.