RST116 RST116 Insulated Sliding System, The insulated sliding system suitable for lift and slide accessories has a 116 mm frame and 52 mm wing depth. Wall thickness is 1.8 / 2 mm. Lift and slide options are available. It offers a choice of reinforced profiles with ribbed and single, double and triple rails, which allows ease of use and high wing capacity. Please contact for detailed information about the products.