Designed For 1-Inch Thick Panels; Total Width Of 48 Inches. For Minimum 1 Inch Thick Panels. Designed For 4 Panel Door. Residential. For four panel door sets 1" to 1-.38" thick and door panels weighing up to 30 lbs. each. Provides full 1-.38" vertical adjustment. Set includes one Track BF30-01, one Snugger BF30-22, one Top Pivot BF30-31, one Guide Wheel BF30-32, one Bottom Pivot BF30-33, one Pair of Hinges 220-3, one Knob BF50-62, and one Jamb bracket BF30-81. White. 4 length. Length: 49. Width: 2.3. Height: 3.3.