A single section ladder is the simplest of ladders and can only be used as a straight/extension ladder.
The undeniable advantage is simplicity, which makes it the lightest and, therefore, the cheapest ladder to achieve a specific height compared to other more complex ladder designs.
The ladder height does not exceed 6 meters. This is dictated by:
It should be noted that such restriction on the ladder length when folded (or in the transport position) also applies to all other more complex aluminum ladders.