Built on a stout frame of Hem/FIR and packed with 1” polystyrene insulation, these custom models feature time-tested construction details. Overlays are affixed with industrial adhesive and screwed from the back side. No plugs, nails or fasteners show from the front. The beveled bottom rail ensures water runs off easily. The thoroughly engineered design produces the lightest, strongest and most weather-resistant custom doors in the industry.