Attic Access Standard Size

Full size attic ladders usually need an opening in the ceiling that is at least 22 1 2 x 54 inches.

Attic access standard size.

The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members. Offers a large selection of attic ladders in various lengths and material they are designed to fit standard rough openings of. Also make sure there is a suitable landing space in the attic so you can safely mount and dismount the ladder while carrying items. Looking for a space adequate to this opening is your first step.

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. Some slide some fold. 22 1 2 x 54 25 x 54 25 1 2 x 64 and 30 x 54 traditional attic ladders. 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.

A few have rails that telescope like an old fashioned shaving mirror. Installation is simple with the online step by step instruction video. And the designs don t seem to accommodate adjustment to a unique size. I suppose i could widen my panel to 30 but i m taking on this project to replace a old ladder with massive air gaps.

The werner wood universal fit attic ladder features the werner wood universal fit attic ladder features a 250 lb. Basic space requirements for an attic ladder. You have your pick of wood aluminum or steel in different heights weights and load capacities. The rough framed opening.

And standard ceiling openings of 22 5 in. 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. There are plenty of choices that will fit into an existing opening typically 22 or 25 inches by 54 inches.

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. The rough framed opening must be a minimum of 22 inches by 30 inches. Standard openings are 22 5 x 54 but some homes have wider openings. Most are 22 5 or 25.