Rüster

Rüster, Ulme

The elm is a deciduous tree native to Europe. The tree is severely threatened by Dutch elm disease. Dutch elm disease was caused by a fungus introduced to the Netherlands in the 1920s, which is transmitted by the elm bark beetle.
The Netherlands and Belgium are/were the main suppliers of elm, which was planted there in parks and as avenue trees and had to be felled en masse due to Dutch elm disease.
Due to the high supply in the 1950s and 1960s, it was a fashionable wood for furniture and interior design. Its moisture resistance made it a popular material in shipbuilding and hydraulic engineering. It is fairly pressure-resistant but has low tensile strength and elasticity. These properties also make elm suitable for sports equipment and tool handles.
The heartwood and sapwood are sharply separated. The sapwood is yellowish-gray and narrow. The heartwood is gray to reddish-brown, sometimes dark brown, and darkens when exposed to air. The wood feels coarse and rough, but is very decorative. Elm tends to form burls (see elm burl).
Sharp tools are recommended for mechanical processing, but even then the results can only be moderately good. Drying must be carried out gently and slowly, as the wood tends to warp and crack.
 

1 to 12 (from a total of 15)
Translated from German to English via AI (DeepL).
Sources:
Fritz Kohl, 2012, „Furniere“, Seite 105
Begemann, Helmut F., 1962, Lexikon der Nutzhölzer, Seite 816
https://de.wikipedia.org/wiki/Feldulme   Letzter Zugriff 07.11.2025
Bilder:  "Templin Furnier e.K."