Which Kit Do I Need? – Ladder Between Trusses
Now, let’s take a look at how much room you have. Measure the width of your pull-down ladder and how much clearance you have between the attic floor (if no flooring, measure from the joists) and the roof rafter or any other obstruction above it.
R-38 Trussed Pull Down ladder cover (PT1-38-11A)
R-20 Trussed Pull Down ladder cover (PT1-20-11A)