Rockdoor, the signature brand from GAP, designs and manufactures high-security composite doors, including front, back, stable, and French doors, all made to your specifications in a state-of-the-art automated facility in Lancashire, UK. Since 1996, Rockdoor has led the way in composite door innovation, earning a reputation for unmatched security, style, and energy efficiency. Each Rockdoor is a masterpiece of design and engineering, boasting industry-leading security features, including PAS 23, PAS 24, and Secured by Design accreditations. What sets Rockdoor apart is its unique innovations—S-Glaze technology, a 50mm thick sash, and carbon fiber reinforcement—all working together to deliver unrivaled strength and performance.