The Fallbrook XL Series Office Partition System is for use when insulating glass sidelite panels are utilized for noise and sound reduction. This system allows you to create an office front with a "floating" door frame aesthetic, and the slim profile allows maximum transparency. The Fallbrook XL Series is designed to accommodate 3/8" or 1/2" (10 or 12 mm) thick monolithic tempered glass doors, as well as 1-9/16" (40 mm) thick wood doors. The insulating glass sidelite panels can be 13/16", 7/8", 15/16", 1", or 1-1/8" (20, 22, 24, 26, or 28 mm) thick.