Acclimation or Conditioning

Acclimation at the jobsite

Acclimation of material at the jobsite

Cross stacked

Sticker stacked

HVAC should be at normal living conditions

Rh and Temp

Humidifier

Acclimation and Conditioning (Hardwood Flooring)

Floor Detective® Claims and Conditions Guide

Summary

Hardwood floor acclimation, sometimes referred to as conditioning, is the process by which wood flooring gradually adjusts to surrounding environmental moisture and humidity conditions in which it will be installed before and after installation. Wood flooring naturally absorbs and releases moisture as surrounding temperature and relative humidity change, causing boards to expand, contract, or distort over time. Acclimation is intended to reduce excessive movement by helping align the flooring’s moisture content with expected occupied-service conditions rather than temporary construction or storage environments. Flooring stored in uncontrolled areas such as garages, patios, or unfinished structures may adjust to those temporary conditions instead of the interior conditions expected after occupancy. Installation does not stop moisture exchange, and dimensional changes may still develop as the flooring system continues responding to environmental conditions over time. Acclimation-related movement alone does not independently establish a manufacturing defect or installation deficiency. See also Wood Distortion, Cupping, and Hardwood Floor Problems for broader context.

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