
Walnut
Walnut Wood – Properties, Uses & Special Features
Walnut wood comes from the walnut tree (Juglans regia) and is considered one of the most valuable European hardwoods. It is prized for its decorative appearance, high strength, and excellent workability – especially in furniture making, crafts, and occasionally in toys.
Origin & Species
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Genus: Juglans
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Main species: European walnut, black walnut (American), butternut
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Distribution: Europe, North America, Asia
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Sustainability: Regionally limited availability, often imported
Appearance & Structure
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Color: Sapwood light gray to whitish, heartwood dark brown to violet-brown
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Grain: Irregular, lively, sometimes striped or flamed
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Surface: Smooth, highly polishable, elegant sheen
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Special feature: Each piece is unique – highly decorative impact
Technical Properties
Feature | Description |
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Hardness | Medium to high (Brinell hardness approx. 25–28 N/mm²) |
Density | Approx. 640–700 kg/m³ – medium weight |
Workability | Excellent for sawing, planing, sanding, and carving |
Elasticity | High – well bendable, dimensionally stable |
Durability | Class 3 – moderately resistant, suitable for indoor use |
Drying | Slow and careful – prone to cracking if dried too quickly |
Applications
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Furniture: Tables, cabinets, shelves, veneered elements
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Toys: Tone bars, figures, turned parts (in small batches)
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Interior design: Wall cladding, parquet flooring, stairs
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Musical instruments: Guitars, pianos, violins
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Crafts: Bowls, jewelry, decorative items
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Kitchenware: Cutting boards, bowls, cooking spoons
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Restoration: Historic furniture, organ building
Advantages
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Elegant, individual appearance
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Very easy to work and finish
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Dimensionally stable and long-lasting
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Suitable for creative and educational applications
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Antibacterial properties – ideal for kitchen products
Disadvantages
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High price
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Low weather resistance
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Prone to discoloration when in contact with iron
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Limited availability of regional wood
Conclusion
Walnut wood is a noble, versatile material with high design quality. It offers ideal properties for toys, furniture, and musical instruments – durable, aesthetic, and educationally valuable, especially for high-end interior use.