Minimum Attic Height

The rest can be less than 7 feet.

Minimum attic height.

Living areas and hallways must have a ceiling height of 7 feet or more and bathrooms and laundry rooms must be at least 6 feet 8 inches tall. Here s how to choose a ceiling height that s right for you. The minimum ceiling height in rooms with sloped ceilings such as a finished attic space is 7 feet over at least 50 percent of the room area. To extend old eight foot ceilings in a remodel aim for.

Attic area exceeds 30 square feet and. Local codes may have stricter requirements so again be sure to check with your state and local regulations. For new flat coffered tray or sloped ceilings go for a minimum of nine feet. If the attic space is smaller than these specs then an access hatch is not required.

With full home additions costing 75 000 minimum and usually far higher many homeowners search for creative ways to increase living space without overly decreasing their bank account. The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches. Attic furnace passageway minimum dimensions requirements. The minimum ceiling height to beams girders ducts or other obstructions shall be no less than 6 feet 4 inches from the finished floor.

This 20 limitation applies to the minimum 30 height only low clearance attics. Have a minimum opening height of at least 24 inches. 30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm measured along the center line between the attic access opening and the attic furnace. Have a minimum opening width of at least 20 inches.

In other words if your attic has 200 square feet over which the ceiling is at least 5 feet. One way is by working within the home s existing footprint and converting the attic into living space. Room area is this case is calculated as the total floor space with walls at least 5 feet tall. If a room has a sloping ceiling which is common in attics at least 50 percent of the room area must have a 7 foot ceiling.

At least 50 of the usable area calculated above must have ceilings of at least 7 feet. Have a sill height of no more than 44 inches above the attic floor level.