What wood floor can I install over a concrete slab?
Manufacturers do not recommend using solid hardwood flooring over a concrete slab, though with improvements in wood floors, most engineered plank floors can be installed over a concrete slab. These materials can be glued directly to a clean, dry, and well-cured concrete slab. Some of the engineered flooring can be floated over the slab with a special underlayment, and then glued at the tongue and groove for installation. Some hybrid type engineered hardwood floors may use a floated glueless click lock system for installation. Before installing any wood floor over a concrete slab, check the manufacturer's recommendations for guidance. Ensure that the installation will not void the warranty. Remember, the concrete slab should be clean, dry, and fully cured at least 60 days prior to the installation, and planks should be acclimated to the room’s climate for at least 48 hours before installation begins.