Density fiberboard, commonly known as MDF, is a type of engineered wood made by compressing wood fibers together with glue under high pressure and heat. It is a versatile material used in construction and furniture-making, as it is dense and sturdy.
Clearly it still worked, but MDF stands for Medium Density Fiberboard which is a fancy way of saying it's particle board. (tarynwhiteaker.com)
RTF (Rigid Thermofoil) is a laminate finish which is applied to Medium - Density Fiberboard with heat - activated glue under vast pressure in a high vacuum press. (decoholic.org)
Engineered Hardwood A floor whose pre-finished top layer is made of hardwood and whose core is plywood or high - density fiberboard for stability and durability. (quickstepstyle.com)