Building Category Building units surveyed Sawnwood consumption (m3) Sawnwood  weighted m3/building unit Aluminium consumption(m2) Aluminium weighted m2 /building unit
Lower(none Storey) 653 1756.6 2.7 16 170.1 24.8
Medium(1-3 Storeys) 43 131.6 3.1 2965.1 69.0
High(≥4 Storeys) 36 190.2 5.3 4830.0 134.2
Total 732 2078.6 2.8 23 965.3 32.7
Source: Field Data (2012)
Table 1: Consumption of sawnwood and substitute building materials in different building categories.