Bring the performance of fiberglass to your home with the Lancaster Prehung Exterior Fiberglass Door. Engineered to last a lifetime, these high-performance doors feature high-definition profiles for added architectural interest and an embossed mahogany wood grain texture. The Lancaster fiberglass front entry door has an energy saving foam core that reduces sound transfer and has a handsome gray color stain applied. The Lancaster fiberglass front entry door comes prehung.