Because they do not open outward, 400 Series gliding windows are an excellent choice for rooms that face walkways, porches or decks. Both sash glide horizontally for maximum ventilation. Made of wood protected by a vinyl exterior, it's our best-selling gliding window..

• Both sash glide horizontally for maximum ventilation
• Wood protected by vinyl exterior
• Durable and time-tested
• Standard sizes up to 6' wide and 5' high.