Smooth out imperfections or cover slightly damaged areas on your walls with this heavyweight paper liner. This unpasted heavyweight paper liner comes on a 26” wide by 25. 83 ft long roll. Wall liners are essential for camouflaging slight flaws to create a polished surface for wallpaper or paint. From the Manufacturer Got trouble walls? Need a smooth surface before hanging your wallpaper? Lining paper is what you need in order to turn a rough wall into a wall prepared for wallpaper installation.