Without the specific connection detail of the tread to the stringer, a "Double Stringer Staircase" drawing is useless for construction. A good free DWG bridges the gap between architectural intent (the look
Here is helpful guidance regarding your search for : double stringer staircase detail dwg free
Below is a "story" detailing the anatomy of this staircase, followed by where you can source the technical files you need. The Anatomy of the Detail Without the specific connection detail of the tread
Even when using a :
: A massive repository with thousands of free CAD blocks specifically for stairways, including section and plan views of various stringer types. double stringer staircase detail dwg free