Wood Based Board MDF Panel for shelving
Density board (fiberboard): Grind wood or plants into fibers, add reagents, and press at high temperature and high pressure. It also call woodfiber board, according to the density we also named it LDF(light density fiberboard), MDF(medium density fiberboard) and HDF(High density fiberboard.)

Fiberboard is the most used board for routing. Only if the density more than 760kgs/m3, the board can be good for routing/CNC routing. https://www.fiberboardchina.com/...-panel-for-shelving.html