- Colour – The sapwood of walnut is creamy white, while the heartwood is light brown to dark chocolate brown, occasionally with a purplish cast and darker streaks. Walnut is usually supplied steamed, which darkens the sapwood, but a very unique look can also be achieved by leaving it natural. The dark heartwood will lighten in colour as it ages overtime with exposure to UV light.
- Grain – Generally straight grained but sometimes with wavy or curly grain that produces an attractive and decorative figure.
- Texture – It has a coarse texture.
- Strength – American Black Walnut has a moderate crushing strength and low stiffness.
- Natural Durability – Resistance to insect and fungal attack reported to be very good.
- Ease Of Drying – American Black Walnut performs best when dried slowly, reducing the opportunity for degrade.
- Preservative Treatment – The heartwood is very resistant to preservative treatments and biodegradation
- Sawing – Good
- Planing – Excellent
- Drilling – Good
- Boring – Good
- Turning – Excellent
- Carving – Good
- Moulding – Excellent
- Nailing – Good
- Screwing – Good
- Gluing – Good
- Steam Bending – Good
- It holds paints and stains very well and can be polished to an exceptional finish.