Multistory Stairs

Create a multistory stair from a stair by selecting the building levels. Multistory stairs automatically adjust if level heights change.

You can create the multistory stair while creating a stair or generate the multistory stair from an existing stair at a later time.

When in stair creation mode (before finishing the stair), click Modify | Create Stair tabEdit panel (Multistory: Select Levels).
Select a stair in an elevation/section view, and click Modify | Stairs tabMultistory Stairs panel (Multistory: Select Levels).

You can do the following:

generate a multistory stair from stairs created with most common runs, such as straight, winder, spiral, and so on
align stairs on each level by the mid-landing position or the run-start point
add or delete level stairs in the multistory stair
ensure that the actual riser number matches the desired riser number
change the multistory stair type and tread depth