It follows the same principle as framing the joists in your house to add attic stairs or for the same reason i did in the garage it gives you more space to be able to access.
How to frame an attic opening.
Step 1 measure the opening carefully examine the opening to your attic and if there is any sign of damage such as loose pieces of wood you should consider enlarging the hole with a saw until the edges are straight and even making sure the width of the hole is not more than 1 or 2 inches larger than the width of the door you will be using.
Build a box to frame the opening with lumber boards the same depth as floor joists.
Nail this framing into place around the perimeter of the attic access opening.
A knee wall is a.
If your ceiling joists are spaced so that they make up the other two sides of the rough opening check the opening for squareness by measuring across the diagonals.
If you want your attic space to have a flat ceiling you ll need to add collar ties to the framing.
The measurements should be within 1 8 inch to be considered square see figure 13.
Air sealing attic access panels doors attic ladder framing issue carpentry attic access hatch reframe pope read this before you finish your attic.
The frame for the rough opening requires four sides.
Framing an attic opening.
A gable roof is framed with rafters that slope downward from the peak of the roof to the tops of the.
The headers make up two of those sides.
Use an electric screwdriver to drive screws in the framing as well.
Creating easier access to attic a diy sfgate.
How to frame.