Raised and Flush Panel Garage Doors Nashville, TN Classic™Collection Classic raised panel and flush steel garage doors available in multiple design and insulation options, including Clopay’s Ultra-Grain® Finish, to complement most home styles. BEST - Premium Series 3-layer construction (Steel + Insulation + Steel). Outstanding durability, energy efficiency, performance and safety. Elegant short, long and flush designs. Insulated R-value 6.5 - 18.4* Read more ... BETTER - Value Plus Series 2-layer construction (Steel + Insulation). Affordable energy efficiency, plus safe and durable construction. Traditional short, long and flush designs. Insulated R-value 4.4 - 6.3* Read more ... GOOD - Value Series 1-layer steel construction An attractive, affordable and reliable garage door. Traditional short, long and flush designs Read more ... *Calculated garage door section R-value is in accordance with DASMA TDS-163.