How long should a slab cure before installing a wood floor over it?

The recommended timeframe for allowing a concrete slab to cure before installing a wood floor is crucial to ensure the longevity and performance of the flooring. In this case, the answer of 2 months is appropriate because it generally allows for adequate hydration and curing of the concrete.

Concrete continues to gain strength and moisture content reduces over time during the curing process. A minimum of 28 days (roughly 1 month) is typically needed for most standard concrete mixes to cure properly, but depending on factors such as environmental conditions and the thickness of the slab, extending this period to 2 months can help achieve better moisture equilibrium and reduce the risk of potential issues with the wooden flooring. Excess moisture in the slab can lead to warping, buckling, or mold growth within the wood flooring, undermining its structural integrity.

While a longer cure time may seem beneficial, practical considerations often make 2 months a standard recommendation that balances curing needs with project timelines effectively.