Gold series door. 1-3/8-inch polystyrene insulation pressure bonded between 2 layers of 27-gauge steel. Up to 6.5 R-value. Weather tight tongue and groove joints. Rust-proof aluminum retainer with a U-shaped vinyl floor seal to help keep out wind, rain, and snow. White stucco textured interior. Long-lasting nylon rollers. Includes interior locking mechanism, rails, and automatic opener reinforcement. Wood grain textured classic raised panel design. Limited lifetime paint system warranty, 3-year hardware warranty.