Hello, First of all, in the regulation, the step width cannot be less than 0.10 meters on the narrowest side and 0.27 in the middle of the step on a balanced ladder. This ladder does not meet the regulatory requirements. Also, the step text you have written does not coincide with the attached drawing. Although not in compliance with the regulation, this ladder can be created. The desired ladder is attached. You can perform the modeling process as follows: -Draw the areas (4 areas) on the stairs with the route command. -Define the exit lines separately for the areas you have drawn (towards the exit direction). -Choose the outer contour first and then the exit lines with the create stairs command. -After creating a ladder, you can double-click on the ladder and change the settings such as the number of steps you have created for each area, construction, and stair arm width. Take it easy, good work.