Uses for medium-density fiberboard include loudspeaker enclosures and school projects. It is also used to fashion trim and shelves, and it is often mixed with wood moldings to create unique cabinets and furniture.
When working with medium-density fiberboard, it is important to wear a mask or respirator. Cutting, sanding or routing medium-density fiberboard results in clouds of dust. When installing trim or cabinets, close air vents and cover doorways to prevent the spread of dust. Plan to spend time vacuuming all surfaces to remove the persistent dust. Clean the vacuum filter after use to avoid clogging the filter.
When using screws on medium-density fiberboard, begin by using a countersinking drill bit to pre-drill a hole. If screws are used without drilling, the material splits and cracks, and the screw head could break off before it is fully installed.
To paint medium-density fiberboard, first sand its fuzzy surface and edges. Apply a water-based primer and, once dried, sand down any fuzz that remains. Use a damp rag to remove the dust before painting.
Medium-density fiberboard is not meant for water exposure. It should not be installed near bathtubs or used to construct windowsills. Any shelves created with medium-density fiberboard should be reinforced, as the material may sag over time. Never use hammer; instead, opt for a power nailer, or drill a hole for each nail. Do not drop medium-density fiberboard, as the inside portion is soft and breaks easily.