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Humidity and Dimensional Changes in Boards

Wood is dried to a moisture content of between 6% and 9% before the flooring boards are shaped. Relative humidity during the prefinishing phase averages 40%. At Vanilla Wood Floors the warehouse is heated and ventilated so that finished products are stored in ideal conditions while awaiting shipment. Even when dried correctly, wood continues to react to changes in relative humidity. The moisture content of wood will rise if the relative humidity is higher than usual and the wood will lose some of its moisture content if the ambient air is too dry.

These variations in the moisture content of the wood will cause the boards to expand or contract. As a result, the dimensions of flooring boards are affected directly by changes in ambient humidity.

A piece of wood becomes stable when its moisture content becomes equal to that of the surrounding enviroment. At that moment, it neither gains nor loses humidity.