whiteboard

Whiteboard is a white or light-colored writing surface designed for dry-erase markers. It is used for teaching, meetings, and collaborative work because marks can be written and wiped away quickly. Whiteboards are usually mounted on walls but may be portable or placed on stands. Some boards are magnetic, allowing the attachment of notes or accessories.

Most whiteboards have a smooth, non-porous surface over a core material. Common types are melamine (low-cost, more prone to staining), painted steel (magnetic), and porcelain enamel on steel (high durability and wear resistance). Glass whiteboards are a newer variant that are non-porous and easy to clean; many are magnetic depending on backing.

Markers designed for dry erase use pigment is designed to wipe away easily from whiteboards; permanent markers should not be used. Erasing is typically done with a dry eraser and, if marks ghost, with a cleaner such as isopropyl alcohol or a dedicated board cleaner. Over time, some surfaces may exhibit ghosting where faint traces remain.

Whiteboards gained widespread use in offices and classrooms in the late 20th century with the advent of dry-erase markers. They vary in size, mounting options, and magnetic properties, and the choice depends on durability, maintenance, and whether magnetism is needed.