Superior Performance on a Large Scale
Have a big story to tell? The new Marvin Ultimate Double Hung Magnum, available in wood and clad wood, is up to the challenge. Designed for large areas, strong, thick, heavy-duty Magnum Double Hungs raise the standard for all oversized window units. This window is the perfect solution when historic compliance and energy efficiency is required in large openings. Now also available in Round Top, the Magnum meets a commercial design pressure rating of H-C50 for window openings nearly five feet wide and nine feet tall, and a rating of H-C30 for even larger sizes.  The sash offers surprisingly smooth operation, with four coil-spring, block-and-tackle balances on each sash.  The Magnum combines high performance with design flexibility and architectural integrity.