A foldable step apparatus having an upper tread with a first end and a second end, a first support pivotably joined to the first end at a first joint and a second support pivotably joined to the second end at a second joint. A lower tread has a third end and a fourth end, the third end pivotably joined to the second support at a third joint and a third support pivotably joined to the fourth end at a fourth joint. The lower tread has a first portion and a second portion pivotably joined at a fifth joint between the third end and the fourth end of the lower tread.