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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 6 Mean values and standard deviations of lumber properties in each sawing pattern

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

Lumber typenARW (mm)AD (g/cm3)MOE (GPa)MOR (MPa)
MeanSDMeanSDMeanSDMeanSD
I572.1a1.10.59a0.059.28a2.2143.2a12.5
II1042.0a1.10.60a0.0410.15a2.3652.3b21.4
III291.9a1.20.65b0.0410.14a2.9257.4b25.2
  1. The same letters (a and b) followed by mean values indicate no significance at the 5% level according to the Tukey–HSD test. The values of the MOE and MOR were adjusted to the values at 15% moisture content
  2. n number of lumber pieces, ARW annual ring width, AD air-dry density at testing, MOE modulus of elasticity, MOR modulus of rupture, SD standard deviation, I lumber including pith at an almost-center position in cross-section, II lumber obtained near the pith (sometimes including pith on the surface area of the lumber), III lumber obtained from outer part of the logs (without pith)