The steps you need to take here are as follows.
How to walk in an attic.
If you are not going to remove the insulation you have to carefully seek out the location of each joist with your feet being sure you are on solid material before putting your weight down.
You will use this on the attic side of the door.
A gridiron pattern was created on the lower walls with a combination of astroturf and molding.
The angled walls are not ignored either they are adorned with team logos and artwork.
For practicality purposes the entire back half of the attic was walled off to create a walk in closet.
It is held in place by the ceiling joists which inside the attic become the floor joists.
Now there are two things you can do.
One type of walk in attic door insulation to use is rigid foam insulation board.
If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts.
Walk in attic door insulation is an important part of your attic insulation.
In general many folks like to use 2x6 inch planks.
Be careful with.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
Find a suitable set of wooden walking boards planks.