Openers: State-of-the-Art Triple Layer Construction, now with the Durasafe system. Heavy Duty, 24-Gauge Steel Construction Sturdy 25-Gauge Steel Construction, Attractive Design View our comparison chart to learn the differences between WeatherGuard, Heritage, and Stratford lines. To view more residential doors go to Arm-R-Lite.com. Residential Doors | Commercial Doors | Projects | Contact | ...