To install the stairs use two people to hold the staircase in the frame of the trapdoor and have another person go in the attic to attach the stairs.
Make my own trapdoor attic stairs.
Bear in mind that when you re making the square to hold the stairs you shouldn t cut through more than one joist with the approval of a structural engineer.
Make sure that there is enough head room to move things in and out.
In days long gone such openings.
Then thread the nuts down but don t fully tighten them image 1.
If there is already a rough opening the hole may need to be adjusted to fit the stairs.
Take the correct measurement from floor to ceiling because the stairs do come in different sizes.
After all the hangers are in place make sure there s an even gap all the way around the frame image 2.
Call it a scuttle trap door or attic hatch every attic needs an entrance and often it s merely a square opening in the ceiling.
You ll already have an access opening to your attic and you need to go up and see if this is suitable.
Start by taking off the existing trim from the trapdoor.
Up in the attic slide the joist hangers onto the rods one at a time placing them at a 45 degree angle to span the frame corners.
Building an attic trap door.