Attic Stud Spacing

Use our roll insulation calculator to estimate how much roll or batt insulation you ll need.

Attic stud spacing.

Joist dimensions are only part of the equation. Use r 30 insulation for the ceiling and r 13 for the walls. Don t mash or compress the insulation into the space. If you re insulating framed walls make sure the insulation is the correct thickness for your wall studs.

Building code also requires that the. 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. In new residential construction the most common stud spacing is 16 inches on center. At least 50 step 2 make sure the attic has a full size staircase.

It needs a certain amount of loft to work properly. If building a knee wall for storage like karl did with this project make sure to insulate that area as well. Measure between joists if insulating a floor or attic or studs if insulating unfinished walls to find the correct width for the insulation. Step 1 check the ceiling height.

That means the builder measures from the center of one stud to the center of the next. 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. Attic joists for live loads.