The Crealco Skyline Casement Window (41mm outer frame) is a projected top and side hung window suitable for residential and commercial application. The Crealco Skyline window offers various window configurations to best suite your fenestration requirements. The maximum permissable sizes for the Skyline Casement Window top hung opening pane is 2000mm x 2000mm (w x h) and for a side hung opening pane 840mm x 2000mm (w x h).