Structural performance (up to) Serviceability Limit State Wind Pressure: 1500Pa maxUltimate Limit State Wind Pressure: 4000Pa maxWater Penetration Resistance Pressure: 330Pa Max maximum recommended size (up to) Height: 3000mmWidth: 1000mm (sash width)Weight: 60kg Glazing Maximum Thickness (up to) Single Glazed:6.38mmDouble Glazed: 22mm acoustics (up to)Bi-fold Door: RW (C:Ctr): up to 33 (-1:-2)