Air Drying Times
Because the rate of drying will vary markedly with the weather conditions it is
impossible to give other than approximate average times taken to air dry various
timbers and sizes. The following times are given as a rough guide to assist in
planning air drying operations:
In Malaysia, where the climate is fairly uniform throughout the year, most
timbers achieve an equilibrium moisture content a little below 20%. Light and
medium density species take 2-3 months to dry to this level when sawn to a
thickness of 13mm, and 4-5 months when sawn 38mm thick. Denser species such as
balau and chengal take longer. In other ASEAN countries, where the climate is
more seasonal, moisture contents in thin boards may be as low as 12% at the end
of the dry period.
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MTC’s
