Center Bearing Support

GaugePlain w/o BrgSteel Jamb Plain w/ BrgWood Jamb Plain w/ Brg
338 (3-3/8")11xxx
338 (3-3/8")8xxx
438 (4-3/8")11xxx
438 (4-3/8")8xxx
500 (5")11xxx
500 (5")8xxx
600 (6")11xxx
600 (6")8xxx
718 (7-1/8")8xxx
Gauge
Mini Resi USA12xAdjustable centerline 2-3/8" to 4-1/4"
USA11LH & RHAdjustable centerline 3-5/16" to 6-3/4"
USA8LH & RHAdjustable centerline 3-5/16" to 6-3/4"