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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 2 Characteristic value of the MOR in 2 by 4 lumber and the number of L. sibirica lumber in each grade

From: Bending properties of dimension lumber produced from Siberian larch (Larix sibirica) in Mongolia

GradeCharacteristic value of MOR in 2 by 4 lumber (MPa)Number of L. sibirica lumber in characteristic value of MOR for each grade
D. fir-LHem-TamS-P-FJS-IIID. fir-LHem-TamS-P-FJS-III
No.%No.%No.%No.%
SS36.029.430.022.513973.216385.816084.218094.7
No. 124.618.022.216.13820.02111.12111.152.6
No. 221.613.821.615.563.252.621.121.1
No. 312.68.412.69.073.710.573.731.6
  1. Characteristic values of the MOR in 2 by 4 lumber were cited from “Matters to determine the standard strength of wood Fc, Ft, Fb, and Fs” in Notification of Ministry of Land, Infrastructure, Transport and Tourism No. 910 [31]. Species group D. fir-L includes L. occidentalis, L. gmelinii, Pseudotsuga menziesii, and others; group Hem-Tam includes L. kaempferi, L. laricina, and others; and group S-P-F includes Picea engelmannii, Pinus sylvestris, Abies balsamea, and others; and group JS-III includes L. kaempferi and similar species
  2. SS select structural