I am disabled:  can't reach high places or carry heavy loads.  I transport this aluminum ladder easily from room to room, appreciate its simple locking mechanism, and feel safe and stable standing on its platform top using the handrail.  Best of all, the steps are less than nine inches apart.  No dangling your foot over space when descending to feel blindly for the next lower step!  This ladder is compact enough to fit behind a door, yet tall enough to reach the ceiling.  No home should be without it!