Minimum Attic Height

30 inches high 762 mm 22 inches wide 559 mm 20 feet max length 6096 mm.

Minimum attic height.

Have a sill height of no more than 44 inches above the attic floor level. 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 rough framed opening.

The rest can be less than 7 feet. Room area is this case is calculated as the total floor space with walls at least 5 feet tall. Have a minimum opening width of at least 20 inches. Have a minimum opening height of at least 24 inches.

The minimum ceiling height to beams girders ducts or other obstructions shall be no less than 6 feet 4 inches from the finished floor. Minimum vertical height of 30 inches measured from the top of the ceiling framing members to the bottom of the roof framing members. 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 prevent homeowners from creating living space that does not allow occupants to stand up.

Attic furnace passageway minimum dimensions requirements. At least 50 of the usable floor space should have a ceiling height of 7 5 ft. If the attic space is smaller than these specs then an access hatch is not required. At least 50 of the usable area calculated above must have ceilings of at least 7 feet.

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. Here s how to choose a ceiling height that s right for you. To extend old eight foot ceilings in a remodel aim for.

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.