FolDoor® accordion partitions and operable walls were introduced in 1950 and 1961, respectively, and have been in continuous production ever since.

• See also:
• Masterformat 2004
• 08 10 00 - DOORS AND FRAMES
• 08 35 00 - Folding Doors and Grilles
• 08 35 13 - Folding Doors
• 08 35 16 - Folding Grilles
• 10 22 26 - Operable Partitions
• Masterformat 1995
• 08200 - Wood and Plastic Doors
• 08350 - Folding Doors and Grilles
• 10650 - Operable Partitions