You ll need at least three critical measurements.
Framing attic pulldown stairs.
I install pulldown attic stairs in half the homes i build.
Installing temporary support boards will also make the installation process easier.
Standard rough openings for typical attic pull down stairs.
Roughing an opening for fold down attic stairs.
Temporarily screw a pair of 1x3 cleats to the ceiling across the rough opening.
25 x 54 most common small width pull down attic stair.
How do measure pull down attic stairs.
Measure the rough opening s width and length in three different spots at the top and bottom of the framing.
22 1 2 x 54 for the smallest pull down stairway.
In new installations a rough.
30 x 54 for the largest width pull down stairway.
Figuring out the angle of cut and the length of the lower stair section is the hard part and the installation guides aren t much help.
Determine the area where you want to place your stairs.
The width and length of the rough opening and the ceiling height.
Installing temporary support boards will also make the installation process easier.
Wood framing works particularly well for attics and is easy to install before an attic pull ladder kit.
Fold down attic stairs provide convenient access to your attic without taking up space in the floor below the attic.
The easy part is framing the rough opening in the ceiling and hanging the stairs.
Lower the frame down onto the cleats from above then fasten it to the framing with 16d nails or 1 4 inch diameter 3 inch lag screws.
Construct the opening frame photo by karim shamsi basha.
25 1 2 x 64 often used for a longer pull down ladder attic access from a higher than standard ceiling.