How to Identify Yellow Birch Wood (Betula alleghaniensis)

Yellow Birch, Betula alleghaniensis: color, grain, end grain, Janka hardness (1,260 lbf) and weight, and how to tell it from Hard (Sugar) Maple, quoted from the USDA Wood Handbook and The Wood Database.

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At a glance

Scientific name: Betula alleghaniensis
Type: Hardwood
Origin: Northeastern North America and the Great Lakes region
Color: Heartwood tends to be a light reddish brown, with nearly white sapwood; shows virtually no color distinction between annual growth rings.
Grain and texture: Grain generally straight or slightly wavy, with a fine, even texture and low natural luster.
End grain: Diffuse porous; pores primarily in radial multiples, medium size, moderately numerous to numerous; parenchyma marginal and sometimes diffuse-in-aggregates; rays narrow, fairly close to close spacing.
Janka hardness: 1,260 lbf
Specific gravity (12% MC): 0.62
Other clue: No characteristic odor; the near-uniform ring-to-ring color gives birch a somewhat dull, uniform appearance; reported as a sensitizer causing skin and respiratory irritation.

What Yellow Birch looks like

Heartwood tends to be a light reddish brown, with nearly white sapwood; shows virtually no color distinction between annual growth rings. Grain generally straight or slightly wavy, with a fine, even texture and low natural luster. End grain: Diffuse porous; pores primarily in radial multiples, medium size, moderately numerous to numerous; parenchyma marginal and sometimes diffuse-in-aggregates; rays narrow, fairly close to close spacing.

Hardness and weight

Janka hardness 1,260 lbf (side hardness: the force needed to embed a 0.444-inch steel ball to half its diameter). Specific gravity 0.62 at 12% moisture content, so a cubic foot weighs roughly 39 lb. Weight in the hand is one of the quickest checks: compare a piece of known size against a board you already know.

Yellow Birch vs Hard (Sugar) Maple

Both are pale, fine-textured, diffuse-porous woods; birch shows almost no ring-to-ring color contrast (a somewhat dull uniform look) while maple can show more figure, and birch's rays are narrow and closely spaced versus maple's mix of narrow and wide rays. The Hard (Sugar) Maple page has its own details.

Smell, weight and other clues

No characteristic odor; the near-uniform ring-to-ring color gives birch a somewhat dull, uniform appearance; reported as a sensitizer causing skin and respiratory irritation.

Where you will meet it

Plywood, boxes, crates, turned objects, interior trim, and other small specialty wood items.

Working it

Generally easy to work with hand and machine tools, though wild grain can cause tearout; turns, glues, and finishes well; birch (Betula) reported as a sensitizer causing skin and respiratory irritation.

How to photograph it for identification

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.

FAQ

How hard is Yellow Birch?

Janka hardness 1,260 lbf. For comparison, Red Oak is about 1,290 lbf and Eastern White Pine about 380 lbf.

How do I tell Yellow Birch from Hard (Sugar) Maple?

Is Yellow Birch a hardwood or a softwood?

Yellow Birch is a hardwood: it comes from a broadleaf tree. Hardwood and softwood describe the kind of tree, not how hard the wood is; some hardwoods are softer than some softwoods.

What color is Yellow Birch?

Heartwood tends to be a light reddish brown, with nearly white sapwood; shows virtually no color distinction between annual growth rings.

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