Quantum Series

Described as an industrial strength double hung, the Quantum Series is designed for historic renovation and light commercial projects with large rough openings. The window features a a robust 5½-inch frame, thicker sash components and heavier sash balances, as well as a a non-rot, low-conductivity cPVC subsill extruded aluminum cladding for durability, the manufacturer points out.  From Lincoln Wood Products, the window features a historically dimensioned 3¼-inch bottom rail and is available in sizes up to 5 feet wide by 10 feet tall.  The Quantum package is also available for over-sized Revitalize sash kits, with balance systems designed to install in a 4¾-inch jamb pocket.  The line is offered with a variety of cladding and hardware colors, energy efficient glass options, grilles and wood species.