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Official Journal of the Japan Wood Research Society

Table 1 HWPs (log, sawnwood, and plywood) input per unit floor area by structure (m3/m2)

From: Estimation of carbon stocks in harvested wood products of buildings in Japan: flux-data method and direct inventory method

Structure 2017 Average (1979–2017)
W SRC RC S CB/O W SRC RC S CB/O
Log 0.009702 0.000000 0.000098 0.000004 0.000000 0.017984 0.001149 0.001295 0.001518 0.001550
Sawnwood 0.155427 0.000000 0.001429 0.002128 0.000795 0.166754 0.007406 0.009409 0.010472 0.036377
Plywood (thickness < 6 mm) 0.000388 0.000025 0.000226 0.000124 0.000076 0.001852 0.000351 0.000595 0.000461 0.001314
Plywood (thickness ≥ 6 mm) 0.022178 0.000818 0.006405 0.003369 0.000898 0.016340 0.002334 0.003963 0.003246 0.004385
  1. “2017” is the latest survey results. “Average” is average of survey results from 1979 to 2017
  2. HWPs, harvested wood products; W, wooden buildings; SRC, steel-reinforced concrete buildings; RC, reinforced concrete buildings; S, steel buildings; CB/O, concrete blocks and other buildings