A wallboard is a flat panel used in construction and interior design, typically made from materials like gypsum, wood, or fiberboard. It serves various purposes, including providing insulation, soundproofing, and a surface for painting or wallpapering. Wallboards are commonly used in residential and commercial buildings to create walls and ceilings. In addition to traditional wallboards, there are specialized types, such as drywall and cement board, which are designed for specific applications. Drywall is popular for interior walls due to its ease of installation and finishing, while cement board is often used in wet areas like bathrooms for tile backing.