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: 6.38mm Double Glazed: 22mm Acoustics (up to)Bi-fold Door: RW (C:Ctr): up to 33 (-1:-2)