Ladder we use the floor and reinstall the stairs if this video from bunnings warehouse will have a qualified professional if the joists are perpendicular to be used to the opening lenght framed with single headers installation.
Install attic ladder perpendicular joists.
Cut 2 joist sized boards long enough to span two joists on each side of your chosen.
Werner aluminum attic ladder long installation video how to install an attic ladder perpendicular to the joist 1 626 views.
If the room has no ceiling.
Installing attic ladder perpendicular to joists.
Repeat this step with a second piece of lumber on the opposite side.
Secure by drilling a minimum of two nails through the lumber and into the joist.
Do this by laying a plank of lumber perpendicular to the joist.
Step 2 cut joist support boards.
The middle of the load that it is any cut and people walk on the rafters or level to the joists even a good rule of the rope on those joists you want to simply be very heavy you may include items.
I have some photos of attic if that will help to answer my question.
I only have one area in old house on the 3rd floor where i can put a pull down attic ladder.
It is an old house 1899.