OMD’s casement double window design combines a hinged opening sash with a fixed double-glazed panel, maximizing light transmission while maintaining energy efficiency. The aluminium frame features a multi-chambered structure to minimize heat loss, and the double glazing is filled with argon gas for improved insulation. This configuration is ideal for large window openings in commercial buildings or luxury homes, offering unobstructed views and superior soundproofing. Custom hardware options include concealed hinges and electronic locks for modern applications.