Attic Stud Spacing

It needs a certain amount of loft to work properly.

Attic stud spacing. You also need to ensure that the joist spacing is adequate. If you re insulating framed walls make sure the insulation is the correct thickness for your wall studs. At least 50 step 2 make sure the attic has a full size staircase. Step 1 check the ceiling height.

Attic joists for live loads. In new residential construction the most common stud spacing is 16 inches on center. For a finished attic to be to code it must satisfy the same living requirements of other rooms sometimes called the rule of sevens any living space in a home needs to have at least 7 feet 2 1 m of clearance from the floor to the ceiling and there needs to be at least 70 square feet of space available at least 7 feet 2 1 m in each direction. Staple insulation between the wall studs and ceiling joists image a.

Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches. Joist dimensions are only part of the equation. Measure between joists if insulating a floor or attic or studs if insulating unfinished walls to find the correct width for the insulation. Attic joists that are made from 2x8s may be acceptable for building your attic floor but because every room is variable there are no absolutes.

Use our roll insulation calculator to estimate how much roll or batt insulation you ll need. If building a knee wall for storage like karl did with this project make sure to insulate that area as well. Use r 30 insulation for the ceiling and r 13 for the walls.