MDF

MDF is smooth, affordable, and ideal for painted builds — if you understand its strengths and limits. This section covers what MDF is, how it compares to other boards, and how to seal and work with it.

MDF basics: what MDF is, how it’s made, its properties, and pros and cons.

Compare: HDF vs MDF, MDF vs particle board, and MDF vs melamine.

Sealing & finishing: waterproof MDF, best primer, and seal MDF.

Working with MDF: best glue and repair damaged MDF.

For how MDF fits among solid and engineered woods, see our types of wood guide.

Is MDF waterproof? No — standard MDF swells if it gets wet, but sealing all faces and edges (or using moisture-resistant MDF) greatly improves water resistance.

MDF vs particle board — which is better? MDF is denser, smoother, and stronger for painted furniture; particle board is cheaper and lighter but less durable.