Do this by laying a plank of lumber perpendicular to the joist.
Install attic ladder perpendicular joists.
If the room has a ceiling and you have cut the required hole go to step 2.
That is a narrow hallway but the ladder would need to be installed perpendicular to joists.
Cut 2 joist sized boards long enough to span two joists on each side of your chosen.
Werner s easy access attic ladder 5 cut ceiling joists step 1 mark.
If the room has no ceiling.
Secure by drilling a minimum of two nails through the lumber and into the joist.
It is an old house 1899.
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 only have one area in old house on the 3rd floor where i can put a pull down attic ladder.
Installing attic ladder perpendicular to joists.
Repeat this step with a second piece of lumber on the opposite side.
Werner aluminum attic ladder long installation video how to install an attic ladder perpendicular to the joist 1 626 views.