Lucci Air 0.5 inch diameter downrods come in a variety of lengths to customize your ceiling fan based on the height of your room. Setting your Lucci Air ceiling fan at the proper height allows for maximum performance. The bottom of the fan should be at least 7-feet from the floor. 8 to 9-feet is the recommended standard for optimal circulation. Lucci Air downrods are non-threaded with set screws and cross pin for added security and stability. For angled ceilings please check the instruction manual for the maximum angle allowed with the canopy included with your Lucci Air ceiling fan. A general guide to choose the correct downrod for your ceiling height is: 8 to 9-foot ceiling 6 in. downrod; 10-foot ceiling 12 in. downrod; 11-foot ceiling 18 in. downrod; 12-foot ceiling 24 in. downrod; 13-foot ceiling 36 in. downrod. 14-foot 48 in. downrod; 15-foot 60 in. downrod. Features Compatible with all Lucci Air ceiling fans 0.5 inch diameter steel pipe for strength and durability Multiple finishes to precisely