TS EN 844-5

TS EN 844-5 is a terminology standard focused on the dimensions of round timber. It provides the shared technical language used to describe, measure and discuss the size-related characteristics of logs and other roundwood products. In timber trade and forest products work, this kind of vocabulary standard is important because it helps keep dimensional descriptions consistent.

Why dimension terminology matters

Round timber is geometrically different from sawn timber, so terms for diameter, length and other dimensional features need to be used carefully and consistently. In general technical practice, clear terminology reduces ambiguity in measuring, grading, commercial description and communication across the supply chain. This standard addresses that dimension-related vocabulary and provides a common reference frame for it.

What the document covers and what it does not

• It covers terms and definitions relating to the dimensions of round timber.
• It is a terminology standard, not a performance, strength or process standard.
• It supports a common vocabulary for describing round timber in contrast to sawn timber.
• TS EN 844-5 is the national equivalent issued on the basis of EN 844-5:1997.

As a result, the document is most useful where size-related wording matters in commercial, technical or classification contexts. It helps users apply the same term to the same dimensional concept, which is essential in forestry and wood-products communication.