Remove and dispose of existing 16x7-foot garage door and tracks. Install new four-section garage door on new heavy-duty galvanized steel tracks; reuse existing motorized opener. New door has a lifetime warranty, and is made with high-tensile-strength steel with two coats of factory-applied paint, is foam insulated to minimum R-12, and includes thermal seals between pinch-resistant panels. Windows in top panel are ½-inch insulated glass. Hardware includes galvanized steel hinges and ball-bearing urethane rollers.