Origin OS-77 aluminium patio sliding door

Origin's sliding patio doors offer two sightline options: OS-44 and OS-77. With sightlines of 77mm, the OS-77 has slightly larger sightlines and is more similar to a traditional style of patio door system. The 77mm sightlines represent some of the smallest available in the industry for this type of door, making the OS-77 a very aesthetically