find the structure detailing, construction detailing in section plan and top view also have elevation design for help to better understand.
Stair case design drawing
Building Stair detail
Metal Stair Section Detail
Straight Stair Elevation D
Stair Detail
Lift design
Stair detail
Circular lift design detai
Lift Elevators Design 2d S
Architectural Scenic Eleva
Lift section cad drawing i
Elevators detail top view