Table 2. Weight loss rate and resistance classification after the decay resistance test

Wood species			Average weight loss (%)1)	Class of resistance2)
Softwood	Japanese cedar	Cryptomeria japonica	35.8 ± 8.3b	Moderately resistant
	Japanese larch	Larix kaempferi	19.5 ± 5.1c	Resistant
	Korean pine	Pinus koraiensis	39.3 ± 11.3a	Moderately resistant
	Korean red pine	Pinus densiflora	57.7 ± 2.3b	Slightly resistant or Nonresistant
Hardwood	East Asian ash	Fraxinus rhynchophylla	38.6 ± 9.7b	Moderately resistant
	East Asian white birch	Betula platyphylla	45.5 ± 4.7a	Slightly resistant or Nonresistant
	Mongolian oak	Quercus mongolica	33.8 ± 6.5b	Moderately resistant
	Mossy locust	Robinia pseudoacacia	4.7 ± 1.2e	Highly resistant
	Oriental cork oak	Quercus variabillis	26.9 ± 3.6c	Moderately resistant
	Sawleaf zelkova	Zelkova serrata	17.4 ± 5.4d	Resistant
	Sawtooth oak	Quercus acutissima	23.1 ± 5.0c	Resistant
	Tulip tree	Liriodendron tulipifera	36.0 ± 5.7b	Moderately resistant

Value followed by different letters (^a–e) indicate significant differences according to Duncan’s multiple range test (p < 0.05).
Classification of decay resistance designated by KS F 2213: Highly resistant, ≤ 10% weight loss; Resistant, ≤ 24% weight loss; Moderately resistant, ≤ 44% weight loss; Slightly resistant or Nonresistant, > 44% weight loss.