Manufacturers publish acclimatisation guidance because timber dimensions respond to humidity shifts during transport, open-door deliveries and heating cycles that begin after occupation. Skipping stabilisation invites edge crush, adhesive squeeze telegraphing or seasonal joint behaviour unrelated to workmanship on lay day.
Operational checklist
Closed openings during volatile weather, staged breakdown inside conditioned rooms rather than cold garages, and documented RH readings relative to adhesive datasheets anchor defensible programmes.
Renovation overlaps
Wet plaster and accelerated paint drying can swing EMC sharply; delaying timber delivery until moisture spikes flatten often costs less than revisiting peaked boards later.