Heritage Mill click and engineered floors do not have a required acclimation period, as long as the moisture content of the hardwood and the subfloor are within 4% of one another at the time of install. When installing wide-width (3” or wider) solid flooring, the difference in moisture content between the hardwood and the subfloor should be no greater than 2%; this may require several days to fully acclimate. The flooring and subfloor should be checked using a reputable manufacturer’s moisture meter, and flooring should always be stored in the area to be installed or a comparable climate prior to installation.