Detailing Stairs and Railings
The tread is the piece of steel that makes up the steps of the stair. The stringers support the ends of the treads. The supporting beam supports the stringer or the dog leg (if it exists). A dog leg is needed when a viable connection cannot be made to the supporting beam directly from the stringer. The dog leg can be the support for the landing at the top of the stair, if one exists. The rise is the vertical distance between two consecutive treads. In order for the stair to be set up properly, every corner of every tread should pass through a single line. That line is called the nosing line, and the corner points on the tread through which the line traverses are called the nosing points.
Stairs can be detailed manually in 2D, or automatically in 3D. Although complex, manual drafting is very common and is widely used. Automatic detailing of stairs in 3D is becoming increasingly common because it is simple and fast, helps the checker (because the stair can be visualized in 3-D), and ensures a good fit and subsequent ease of erection. JV Latona Drafting specializes in stair detailing. Contact Us to find out more.