
Wear layer
3.5 mm of real oak. Enough to sand back three times.
Most engineered floors carry 0.6-2 mm on top - one deep scratch and there is nothing left to work with. A 3.5 mm layer can be sanded back two or three times across the life of the floor, each time returning a surface that is close to new. That is the difference between replacing a floor after ten years and keeping it for thirty.













