So with a 24 on center and framing lumber being 1 1 2 thick the dimension between the inside edges of the two joists is 22 1 2 24 3 4 3 4.
How do you measure attic stairs.
You ll need at least three critical measurements.
You can stand on the attic ladder to take.
Place your ladder securely below the ceiling hatch and lock it in place.
How to measure your attic ladder for a replacement step 1.
Extend the tape measure so that it reaches from the ceiling to the floor.
The next measurement will be for the length of the stairs.
That s dimensions between the framing of your attic joists which is typically 24 on center.
Measure the height or rise of the space you want to make stairs.
Place your measurement along the edge so that your measuring tape stays in a straight line.
This is called the rise of your measurements and will determine how high your stairs will go.
Stretch a tape measure along one of the long sides of the stair opening and write down the measurement.
How to measure for attic stairs 1.
For smaller attic openings with a minimum measurement of 18 x 24 you will need to measure the swing clearance inside the attic space.
How do measure pull down attic stairs.
Hold the tape.
Using a tape measure make measurements of the total height of the space you want to make stairs from the bottom to the top.
Measure the rough opening s width and length in three different spots at the top and bottom of the framing.
Attic ladders are sized based on the rough opening.
Measure and verify the amount of space available to swing out the stair sections of your ladder this extends beyond your attic opening.
Position a step ladder under the attic stairs so that you can easily access the ceiling area.
Installing a pull down attic ladder is essential for safer easier access to your attic.
Measure the length from the hinged side of the attic ladder frame to the opposite side of the attic ladder frame.
We ll show you how to cut out frame the opening then install a fo.
The width and length of the rough opening and the ceiling height.
You should also measure the ceiling height.
Place a tape measure at the left side of the attic opening on the inside edge of any trim molding but the.