Medium density fiberboard, or MDF, is a manufactured wood product that is composed of wood pieces mixed with adhesives and then pressed into sheets. It is similar to particle board in composition, but has a finer texture and greater density.

Compared to traditional hardwood lumber, MDF is relatively inexpensive and considered environmentally friendly, as it is made from waste materials and does not require fresh timber. MDF also offers uniform consistency throughout the board and is resistant to splintering. However, there are some drawbacks to using MDF. It is heavier per inch than natural wood, and is less strong. Additionally, it is not resistant to moisture and does not have the natural wood grain that many people find desirable.

One major challenge for cabinetmakers using MDF is that it lacks the natural wood grain, making it unsuitable for staining. Instead, it needs to be primed and painted, which can require additional time and effort. Despite this, MDF is a popular material for many woodworking projects due to its affordability and consistency.