Linings are available in three widths 108mm, 133mm and 150mm. The standard thickness is 22mm and each boxed set comprises 2 x 2100mm and 1 x 1050mm lengths. Included in the box are loose stops, 2no 12x45x2100mm and 1no 12x45x1050mm. We also offer a lining 32mm thick in 133mm width which is suitable for use with FD30 doors if fitted with an intumescent strip.