The direct determination of generated quantities and composition
of construction waste in Thailand is a challenging task. This is
largely because construction companies are not obliged to record
and report the qualitative and quantitative characteristics of the
waste they generate. Consequently, in order to estimate the quantities
of construction waste generated, data relevant to the type of
building activity and the number and area (m2) of construction
permits (see Table 1) obtained from the database of the National
Statistics Organization of Thailand (2007) were utilized.