Quality and durability.
Each plank is made of a single piece of wood. It’s perfect for living rooms, dining areas, and bedrooms.
But remember, solid wood can expand and contract with changes in humidity, so it’s not the best for damp areas like basements.
If you want the look of hardwood but need more stability, engineered hardwood is for you. It has a layer of real wood on top but is built with multiple layers underneath that resist changes in humidity.