Particleboard is notorious for falling apart when it encounters moisture, often swelling or returning to its original state of wood chips, shavings or dust; however, this is not the case with all grades of particleboard. High-density particleboard, made with extreme pressures, can withstand moisture. While plywood does not fall apart when it encounters moisture, it warps, deforming the shape of the cabinet. High-density plywood with several layers is more resistant to moisture. In areas such as the bathroom or kitchen, moisture resistance should be among the first criteria considered. Test samples of the particleboard and plywood you are considering by soaking them in water to determine their true moisture resistance.
Both particleboard and plywood are available for a wide range of prices, but plywood is generally much more expensive than particleboard. High-density particleboard is often priced significantly less than mid- to low-density plywood. You can spend the money saved by opting for particleboard on other design elements, but opting to spend the extra money for high-density plywood will yield sturdier cabinets.
A quality laminate finish on particleboard can appear very similar to plywood. Laminate is typically a very thin sheet of wood, glued onto the surface of the particleboard. It can also be a layer of melamine, a resin material with fire-retardant capabilities. Both are available in a wide range of colors and add to the sturdiness of the particleboard. Plywood has a more natural appeal; however, should it warp, its appearance will remain the same on the exterior. Moisture-damaged particleboard swells and can ruin its exterior laminate finish. Take a walk through your local hardware store’s wood section and observe particleboard and plywood side-by-side. For appearance, personal preference should be the deciding factor between the two.
Both particleboard and plywood have their advantages and disadvantages; however, a high-density particleboard can provide nearly the same stability and sturdiness of plywood for a fraction of the cost. So long as your cabinets are cared for properly, particleboard is typically the most practical option. If you are more attracted to plywood, a high-density variety will yield a striking, durable cabinet, as well.