AcadCalcStair

From Nyacad Inc:

The program for calculations inside AutoCAD (any formats of numbers) and Stair drafting. With help of this program you can do mathematical operations; calculations of triangles, slopes and stairs. Results of calculations can be used directly for performing AutoCAD commands: move, copy and others. Options: copy and paste numbers (decimal or architectural formats) in AutoCAD MText or Text editor; write calculations and add comments in Protocol, copy and paste contents of Protocol in any Text editor (Word or Notepad); get distances from AutoCAD and use them in calculations; set parameters and draw stair (plan and elevation view).