1. a building material made from wood fibers or other plant fibers compressed and bonded together

Examples

• The shelves were made of inexpensive fiberboard.
• Fiberboard is commonly used for furniture backing.
• The construction crew installed fiberboard sheathing on the walls.
• Medium-density fiberboard is popular for cabinet doors.
• The packaging box was reinforced with corrugated fiberboard.
• Fiberboard provides good insulation properties for buildings.