edge banding

Edge banding is a narrow strip of veneer, plastic, or solid wood applied to the exposed edges of manufactured boards, primarily plywood and particleboard. When you cut a sheet of plywood, the edge reveals the layered structure of the core material, which looks unfinished and is prone to splintering and moisture absorption. Edge banding conceals this and creates a continuous visual line that matches or complements the face veneer.

The most common material is veneer edge banding, typically 0.6 to 1mm thick and between 15mm and 50mm wide, made from the same wood species as the plywood face or a contrasting species. PVC and ABS plastic edge banding, typically 1mm to 3mm thick, are cheaper and more durable against moisture and impact; they come in solid colors and wood-grain finishes. Solid wood edge banding, usually 2mm to 4mm thick, is used for higher-end work and is more forgiving to sand and finish after application.

Edge banding is applied with a handheld edge bander, a small portable tool that heats an adhesive backing and presses the strip onto the edge as you feed the board past it. Most commercial edge banding uses hot melt adhesive, which sets in seconds. The strip is then trimmed flush with the board face using a trimming bit in a router or a dedicated edge trimmer; excess is carefully removed from top and bottom. Sand-able edge banding can be planed or sanded flush if the application is slightly proud of the surface.

Common problems: bubbling or lifting occurs when the adhesive cools too quickly or the pressure is inconsistent; this is often caused by a dirty board edge or improper temperature. Visible glue lines appear when the edge banding is too narrow or the board edge is not square. Misaligned application shows immediately on curved edges or when the board is warped. Poor color matching is unavoidable with some species, particularly when using pre-glued stock that has aged or been exposed to light.

Edge banding is distinct from solid edge strips or edge trim, which are thicker and are screwed or nailed on; it is also different from edge trim tape, which is adhesive-backed but applied cold and is more temporary. In commercial cabinet work and ready-to-assemble furniture, pre-banded plywood is common. The term edgebanding is also used, particularly in North American trade literature, as a single word.