Steigschenkel - front legs

Stützschenkel – support legs

looks to be about it

The step ladder is an item that is used in many homes and will test student on angles and planning.

OH&S Assessment.
Mark out and cut timber for font legs and steps.
Calculate and Mark angles of front legs ends and step positions.
Cut leg end angles and step housing.
www.waggad.det.nsw.edu.au/DO-Internet/VocEd/icf_course_cons...

Stepladders are self-supporting, non-adjustable ladders ranging in height from 4 to 16 feet. They have a movable back frame hinged to the front legs and spreaders that hold and lock the ladder open in the safe position. They usually have a pail shelf on the back side.
www.paintquality.com/pqimanual/chapter_08.html