Step 7: Assemble the staircase

Assemble the staircase by installing treads
Photo Karim Shamsi-Basha
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Slip the stair treads into the angled dadoes milled in the two stringers. Secure each pine tread with four screws. Then use a wrench to tighten the threaded ladder rods that pass beneath each tread. Leave out the top three treads so you can easily fit the staircase between the header-guide frame mounted above the door panel.
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    Tools List

    • drywall saw
      Drywall saw
    • drill
      Drill/driver
    • eye goggles
      Goggles
    • dust mask
      Dust mask

    Shopping List

    1. Sliding attic staircase

    2. Lumber to match existing ceiling joists
    used to reframe staircase opening

    3. 1x8s
    for building finished frame around staircase opening

    4. 1x3s
    used as temporary cleats for positioning the 1x8 frame

    5. 3 1/2-inch (16d) common nails

    6. 1 1/4-inch drywall screws or nails
    used to fasten drywall ceiling to framing

    7. Casing molding
    for trimming around staircase opening

    8. 1 1/2-inch finishing nails
    for attaching casing molding