Structural performance (up to) Serviceability Limit State Wind Pressure: 3000Pa max Ultimate Limit State Wind Pressure: 6000Pa max Water Penetration Resistance Pressure: 600Pa max Maximum recommended size (up to) Height: 1550mm Height with low light: 2750mm Width: 3000mm Glazing - Maximum Thickness (up to) Single Glazed: 6.38mm Double Glazed: 22mm Acoustics (up to) 48mm Sliding Window: RW (C:Ctr): 31 (0:-2) 101.6mm Sliding Window: RW (C:Ctr): 33 (-1:-2) Frame widths available: 48mm, 65mm, 75mm & 100mm In finned, fin-less and face fix configurations.