There are also fixed ladders that are used on the sides of boats or on some Lorries. John H_ Basely of Dayton invented the step ladder in 1862. When he made it he put hinges on it so when someone ...

This type of ladder is popular in Europe, but it’s more common to find A-frames that are telescopic in the U.S. While they can be used like a step-ladder, they also can be extended straight up ...

A Hong Kong labour group has called workers to use step platforms after a worker died following a fall from a wooden ladder.