Normal Attic Access Opening Size

Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8 m2 and have a vertical height of 30 inches 762 mm or greater.

Normal attic access opening size.

The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing. You have your pick of wood aluminum or steel in different heights weights and load capacities. Floor to ceiling height. Standard openings are 22 5 x 54 but some homes have wider openings.

What is the minimum size for attic access opening. If the opening is located in a wall the 30 inch dimension must be vertical. If the access is located in the ceiling the minimum. Tuesday january 28 2020.

A few have rails that telescope like an old fashioned shaving mirror. Conversely some homes have smaller openings or hatches. Building codes according to the 2006 international residential code r807 1 attic access homes with combustible materials in the ceiling and roof construction must have an access to attic areas that exceeds 30 square feet and with a vertical height of 30 inches or greater. The rough framed opening must be a minimum of 22 inches by 30 inches.

It s important to understand the opening size you have or will create to ensure you select the correct attic ladder product for your home. The rough framed opening. There are plenty of choices that will fit into an existing opening typically 22 or 25 inches by 54 inches. This generally comes in 7 lengths and you will need three pieces of it for a standard sized attic access hatch.

Some slide some fold. To make a door use cabinet grade plywood cut 1 8 smaller than the wood door frame opening. Due to various opening sizes and finishes a door is not included with this ladder. The rough opening cannot be less than 22 inches by 30 inches and must be located in a hallway or other readily accessible location.

Screw the hinges included to one edge of the door and then attach them to the frame of your opening. When any portion of the through wall access is below grade an areaway not less than 16 inches by 24 inches 407 mm by 610 mm shall be provided. You ll notice in the photo below that interior door jamb stock does not have any kind of weather stripping in it for obvious reasons.