For engineering drawing, your solution is...
...because it's definitely about time!
Although it has become common for stairs, ladders and handrails to be detailed by a specialized fabricator, there remain many cases in which the picture is not complete without adding the interface of these items.
Here, a simple stair tread becomes a two-story moment stringer with interchangeable treads...or anything in between. More SCM videos here...
Step-thru ladders in coordinated elevation views.
Pipe handrails with multiple mounting conditions.
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