A flip section, that is both counterbalanced and foldable, as an extra option of a counterbalanced ladder.
A flip section is an extra option for a counterbalanced ladder. A counterbalanced ladder has a lower sliding part. This lower sliding part can be carried out with a foldable flip section. The lower part of the counterbalanced ladder is released and slides smoothly downwards, then the extra part flips out. This last foldable part is the flip section.