The Little Giant Ladder is the best ladder to use on stairs. There are several versions of this ladder but the Revolution or Ultimate versions are all American. There are inexpensive Chinese made versions of the Little Giant Ladder, but the 16 x 20 Ultimate available at Costco are Made in the USA. You can purchase the USA made version right here on Amazon.
Little Giant is committed to creating American jobs. All of the field reps for Little Giant must spend time in the manufacturing plant creating the ladders. The Little Giant Ladder is made in Idaho or Indiana.