Casement windows, often referred to as projected or sash windows, are designed with sashes that swing outward from the window frame. They come in two main types: side-hung, which open to the left or right, and top-hung, which open upwards. This flexible design allows you to control airflow and protection from the elements with precision.
These windows are particularly effective when placed on the weather-facing side of a building. They can be opened just slightly for gentle airflow or fully up to 90 degrees for maximum ventilation. Even in the rain, they can be adjusted to allow fresh air in while keeping water out, making them perfect for achieving natural cross ventilation without compromising comfort.
Casement windows are available in sizes up to 2.4 meters wide and 1.8 meters high, with individual sashes as large as 600mm wide and 1200mm high. For larger openings or enhanced lighting, they can be paired with sidelights or top-lights.
Their clean look and practicality make them a great choice for living rooms, kitchens, bedrooms, and home offices—anywhere that needs a balance of light, air, and energy efficiency.