Avg Size Of An Attic

20 x 50 1 000 sq.

Avg size of an attic.

The rough framed opening must be a minimum of 22 inches by 30 inches. Step 3 multiply step 1 and step 2 together to get the area of the attic floor. Standard openings are 22 5 x 54 but some homes have wider openings. Conversely some homes have smaller openings or hatches.

Measure the rough opening in your ceiling both the width and length. 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. Of living space measures 40 by 45 at the exterior. For example if your length is 40 feet and your width is 20 feet then 40 20 800 square feet.

The rough framed opening. 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. To determine the size of your attic multiply the width by the length of the attic floor in feet. 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.

Example 20 wide by 50 long attic. Measure the width of your attic space in feet.