For me, they both work. I prefer the second.
Many shelves were placed too high or too low to reach with ease.
Many shelves were placed too high or too low to be reached with ease.
Which sentence is correct?
Welcome to the forums, pgn.
Please note that a better title would have been To reach/to be reached.
Extract from the Posting Guidelines:
'Thread titles should include all or part of the word/phrase being discussed.'