In terms of room structure, interior linings refer to the materials used to finish and cover the walls, ceilings, and floors, significantly impacting both the room’s aesthetics and functionality. Wall linings, such as drywall, plaster, or panelling, provide smooth surfaces for painting or wallpapering and can include decorative or acoustic elements. Ceiling linings, including plasterboard, ceiling tiles, or acoustic panels, enhance insulation, reduce noise, and contribute to the room’s overall appearance. Floor linings, like hardwood, laminate, tile, or carpet, offer durability, ease of maintenance, and comfort underfoot. Collectively, these linings define the room’s look, improve acoustic and thermal performance, and enhance the space's overall comfort and usability.