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Wood encyclopedia

Walnut

Ein Klassiker unter den Edelhölzern

amerikanischer Nussbaum (JGNG)

europäischer Nussbaum (JGRG)

europäischer Nussbaum: Noyer commun (FR); noce (IT); nogal (ES); common walnut (GB)

amerikanischer Nussbaum: Black walnut (USA, GB)

botanische Bezeichnung

europäischer Nussbaum: Juglans regia (Juglandaceae)

amerikanischer Nussbaum: Juglans nigra (Juglandaceae)

Verbreitung

europäischer Nussbaum: Europa, östlich bis zum Himalaya

amerikanischer Nussbaum: Östliches Nordamerika

Walnut

kurz und knapp

Walnut, both the American variety (Juglans nigra) and the European variety (Juglans regia), is still one of the most highly prized furnishing woods in Europe. Despite a change in utilisation and available sources, these woods remain sought-after species due to their decorative qualities, particularly American walnut or black walnut.

Nussbaum us nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

Nussbaum us o nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

American walnut

Nussbaum eu nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

Nussbaum eu o nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

European walnut

Nussbaum fr nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

Nussbaum fr o nachhaltige Holzpflege aus 100% natürlichen Inhaltsstoffen. studio moreandless

French walnut

Color and texture

The sapwood of the walnut varies from whitish to pinkish grey, while the heartwood has different colours depending on its origin. European walnut heartwood can range from light grey to grey-brown, often with dark stripes. American walnut heartwood, on the other hand, is darker and more evenly coloured, often with a purplish-brown shade and less conspicuous colour stripes. Growth zones are marked by early wood pores arranged in a ring.

Workability

The woods of both variants are of medium weight, comparable to white oak, but tougher and easier to bend. With a straight grain, they can be machined very well and the surfaces are noticeably smooth and slightly glossy after machining. Processing with nails and screws requires pre-drilling, and surface treatment and gluing are problem-free.

Drying process

Walnut woods dry slowly and technical drying requires careful control to avoid discolouration and cell collapse. Stability is good to satisfactory.

Natural durability

Die natürlicher Dauerhaftigkeitsklasse nach DIN EN 350 beider Holzarten beträgt Klasse 3.

Areas of application

Walnut is used in small quantities as solid wood for sports rifle stocks, woodturning and the restoration of historical furniture. It is used as a decorative veneer for furniture, pianos, wall panelling and panels. Asian walnut is also used for self-build furniture.

Alternatives

The availability of the formerly numerous replacement woods has declined sharply, and imports are focussing on sister species from East Asia and tropical Latin America. Indian Laurel and the wood of Acacia mangium from plantations could be considered as alternatives.

Notes

It should be noted that ferrous metals in combination with moisture can cause blue-grey discolouration on walnut wood. Therefore, insensitive fasteners and fittings are required. Despite changes in utilisation and availability, walnut remains a timeless classic among precious woods.

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Amaranth

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