Minimum Attic Height

Have a minimum opening width of at least 20 inches.

Minimum attic height.

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. In other words if your attic has 200 square feet over which the ceiling is at least 5 feet. Attic area exceeds 30 square feet and. The minimum ceiling height to beams girders ducts or other obstructions shall be no less than 6 feet 4 inches from the finished floor.

For new flat coffered tray or sloped ceilings go for a minimum of nine feet. Minimum vertical height of 30 inches measured from the top of the ceiling framing members to the bottom of the roof framing members. 30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm. Local codes may have stricter requirements so again be sure to check with your state and local regulations.

The rough framed opening. Room area is this case is calculated as the total floor space with walls at least 5 feet 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.

If the attic space is smaller than these specs then an access hatch is not required. To extend old eight foot ceilings in a remodel aim for. The rest can be less than 7 feet. 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.

Have a minimum opening height of at least 24 inches. To prevent homeowners from creating living space that does not allow occupants to stand up. 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.

Summary of residential ceiling heights therefore in summary lets is recap the above information.