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Official Journal of the Japan Wood Research Society

Table 4 Grading standard of physical properties of timber from Southeast Asia and Pacific regions by Forestry and Forest Products Research Institute (1975) [18]

From: Transverse shrinkage variations within tree stems of Melia azedarach planted in northern Vietnam

Grade

Shrinkage from green to oven dry

Tangential (%)

Radial (%)

I

≤ 6.2

≤ 2.6

II

6.3–8.0

2.7–3.8

III

8.1–9.8

3.9–5.0

IV

9.9–11.6

5.1–6.1

V

≥ 11.7

≥ 6.2