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Technichal standards
The manufacture and use of Duobalken® and Triobalken® beams is subject to compliance with the following technical standards, among others
- Product approval number Z-9.1-440
with: - DIN 1052: 2008-12 Entwurf, Berechnung und Bemessung von Holzbauwerken
- DIN 4074-1: 2003-06 Strength grading of wood: Sawn coniferous timber
- DIN EN 336: 2003-09 Structural timber – Sizes, permitted deviations
- DIN 18334: 2006-10 Carpentry and constructional timber works
- DIN EN 385: 2007-11 Finger jointed structural timber – Performance requirements and minimum production requirements
- Agreement between the Federation of German Master Carpenters (Bund Deutscher Zimmermeister) and Überwachungsgemeinschaft Konstruktionsvollholz e.V. about Duobalken® und Triobalken® (Fassung November 2003)
