Minimum Height Requirement For Ceiling Fan

The 2018 international residential code also dictates a minimum ceiling height requirement.

Minimum height requirement for ceiling fan. A ceiling up to 9 feet high requires a standard 3 inch drop rod. What is the minimum height for a fan to be installed. February 10 2017 by customer service. First off lets break down section r305 to make it easy to follow.

Lets look at the 2015 international residential code irc to see how these minimum height requirements apply. The optimum mounting height for a ceiling fan is 8 to 9 feet above the floor with a minimum of 7 feet for safety. Minimum ceiling height in bathrooms is 6 feet 8 inches. If your home has a standard 2400mm ceiling the fan will be able to be installed directly on to the ceiling and will comply with australian standards.

It basically identifies 6 main spaces. Any room with a furred ceiling shall be required to have the minimum ceiling height in two thirds of the area thereof but in no case shall the height of the furred ceiling be less than 7 feet 2134 mm. If there are any beams in the ceiling then these can be 6 feet 6 inches above the floor as long as they are spaced at least 4 feet apart. Under australian standards the minimum height from floor to the lowest part of the fan needs to be 2100mm.

10 to 11 foot. For every two inches of ceiling clearance below this minimum airflow through the fan decreases by as much as 25 percent. A ceiling with exposed beams spaced at least 4 feet apart can measure 6 feet 6 inches from the floor to the underside of the beams. Most ceiling fans come with three inch downrods that suspend the fan.

The international residential code irc establishes the minimum ceiling height requirements by space within section r305. For example if your ceiling is 12 feet high and your ceiling fan is 12 inches in height you will need a 24 inch downrod to mount the ceiling fan between eight and nine feet above the floor. Minimum ceiling heights of habitable rooms and spaces shall not be less than established in section 1208 2.