Interior walls are vertical structures that divide the space within a building. They provide privacy, support, and can help with sound insulation. These walls can be made from various materials, including drywall, plaster, and wood, and they can be painted or decorated to enhance the room's appearance. In addition to their functional roles, interior walls can also influence the layout of a space. They can be load-bearing, meaning they support the weight of the building, or non-load-bearing, which means they are primarily used for separation. Proper design and construction of these walls are essential for safety and aesthetics.