How do I make curved stairs in Autocad?

What are the dimensions of a spiral staircase?

The smallest size diameter we offer is 3 feet 6 inches (42″ X 42″). Standard diameters increase in six inch increments, 42″ x 42″ to 48″ x 48″ to 54″ x 54″ and so forth.

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Spiral Staircase Diameter.

What are the types of stairs?

Types of stairs

• Straight stairs. Straight flight stairs. Double straight flight staircases. U shaped double flight enclosed staircase. U shaped staircase with shaft. Staircases with three or four flights of steps. Imperial staircase.
• Curved stairs. Elliptical stairs. Spiral stairs. Helical stairs.
• Mixed stairs.