The Marquise Series Door System (Knock Down and Preassembled) from Diamond Door Products is designed to fit a large segment of contractor/owner needs for steel doors with high-quality components, a large selection of options and accessories, and applications to every wall type. The Marquise system provides: 3070, 4070 and 6070 sizes, smooth or textured door skins, 20- and 18-gauge doors, kerf frames, complete lines of hardware, and white or bronze baked-on finish paint.
