OMD’s double double hung windows (double-sash double hung) feature four operable sashes, allowing precise control over ventilation and light. The aluminium frames are engineered for stability, with reinforced corners and seamless welding to prevent air leakage. These windows are ideal for large openings in commercial spaces or luxury homes, offering a symmetrical design and enhanced thermal performance. Customization options include dual-color finishes (interior/exterior) and integrated blinds for privacy.