It is an old house 1899.
Installing attic stairs perpendicular to joists.
Cut around ceiling trim with a utility knife.
You potentially compromise too many of the rafter cross ties by doing that.
Werner s easy access attic ladder 5 cut ceiling joists step 1 mark.
Do this on both sides image 3.
Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches.
Cut 2 joist sized boards long enough to span two joists on each side of your chosen.
If the room has no ceiling.
I only have one area in old house on the 3rd floor where i can put a pull down attic ladder.
Determine the area where you want to place your stairs.
Next using an electric drill pop a screw up through the drywall in the ceiling.
When you find it remove the insulation from the area and determine.
In this video this old house general contractor tom silva explains how to install attic stairs.
This way you only need to cut one of them to make the room for the rough framing opening.
Mark rough opening of new fold down staircase on the ceiling joists in the attic.
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.
Use a reciprocating saw to cut joists and nails holding any joists that must be removed.
I would not put the attic stairs ladder assembly opening at right angles to the ceiling joists.
Once you re in the attic locate the screw.
Instead you should place the cutout opening inline with the ceiling joists rafter ties.
Snap a chalk line between the two nails image 2.
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.
If the room has a ceiling and you have cut the required hole go to step 2.
Using a carpenter s square line it up from the point of the nail and draw out 22 1 2 inches.
I have some photos of attic if that will help to answer my question.
Cutting and bracing a new hole.
Learn how to install this attic ladder with a complete installa.
Step 2 cut joist support boards.
Installing attic ladder perpendicular to joists.