Rules for trestle ladders

  • The top ends must not be able to press against one another.
  • It must be possible to use them as a single ladder if they are equipped to do so.
  • There must be a chain at either side which ensures that the sides do not slide apart; the same goes for combination ladders in trestle mode.
  • Combination ladders must have broad supporting feet when they are used as trestle ladders.