Item Description Secure your home and family with Therma-Tru's value-priced Traditions steel door. Our opaque doors without glass come with a 20-minute fire rating. All doors are available in ready-to-paint decorative designs that come with a tough 24 or 25-gauge smooth steel surface and a polyurethane foam core for durable energy efficiency. Traditions steel doors feature a solid wood lock block for secure mounting of hardware, decorative glass options, and a five-year limited warranty.