Engineered wood combines a real hardwood veneer with a layered core for greater stability than solid hardwood. Measure carefully, order from one production run, acclimate properly, and follow manufacturer installation and care guidance.
Engineered wood pairs a hardwood veneer with a multi-ply core for greater dimensional stability than solid hardwood. It installs as floating, glue-down, or nailed flooring and is often suitable over concrete, but it is not waterproof - follow manufacturer guidelines for bathrooms and basements.
Engineered hardwood uses a real-wood top layer over stacked layers to resist moisture; choose it for basements and floating installs. Solid hardwood works well above grade and can be refinished more times.
Engineered hardwood can be installed over concrete if you control moisture. Test the slab (ASTM F2170/F1869), follow manufacturer's moisture limits and acclimation instructions, and choose the right installation and mitigation methods.