A Professional Sing Panel is the only material that can create a door that is lightweight, insulated, sound deadening and guaranteed for structure and non-warp for 50 years. About Doors Doors made with Sing Core inside are the most revolutionary doors based on patented and patent-pending warp-free technologies. You will find that any kind of [...]
See: Why Architects Spec Sing Core What we do — We supply the biggest and best door companies in the world and serve the top architectural firms. Our patent and patent-pending technology allows us to solve the issues often faced with large doors. Exclusive 50-year warp-free warranty 50 years structure guarantee. Custom door panels built to [...]