Modeling stairs

Allplan 2019 introduces the two new Stair Modeler and Modify Stair Modeler tools. You can find these new tools in the Stair task area of the Elements task. Using these tools, you can create and modify stairs precisely in no time at all.

The following section briefly describes how to use the new stair modeler. You can find detailed information on this tool and its parameters in the Allplan Help. See “Stair modeler”. As an alternative, select What’s this and click this tool to get help.

To design a stair using the stair modeler

1. Select the Elements task and the Stair task area and click Stair Modeler.

   The Stair palette opens.

2. Define the basic geometric properties of the stair on the Settings tab.

   Use the Representation area to specify whether you want to display the stair in plan (2D representation) or in elevation and perspective view (3D representation). You can also select both options.

   Note: The Plan view tab is only visible when the Create 2D representation option is selected. The Elements tab and the tabs for the stair elements selected on the ‘Elements’ tab are only visible when the Create 3D representation option is selected.

3. Only if you have selected the Create 2D representation option:
   Select the Plan view tab and define how the stair looks in plan.

   Note: The individual stair elements are only visible in plan when the Create option is selected in the 2D representation area on the tab for the relevant element, regardless of whether the tab is visible or not.

4. Only if you have selected the Create 3D representation option:
   Select the Elements tab and define which stair elements are visible in perspective view and in 3D view. Point to a stair element and select its check box.

   Open the tabs for the selected stair elements and define the parameters for the stair elements.

5. Click where you want the stair axis to start.

   The preview displays the stair as a straight stair with the parameters you defined on the Settings tab.

   Note: Check the position of the stair in relation to the stair axis. If it is not correct, change the Axis position in the Dimensions area on the Settings tab.

6. Place a point for each segment of the stair.

   This also applies to straight flights of stairs: Place a point where you want to insert a landing or change the characteristics of the stair flight.

   When you create a straight stair with a single flight, the second point you click is the end point of the stair.

7. After you have placed the last point, press ESC to finish designing the stair.
8. To quit the tool, click Close in the Stair palette or press ESC again.
9. To modify the stair afterwards, select the Modify Stair Modeler tool in the Stair task area.
10. Using the Edit mode area on the Settings tab, you can choose to change the stair outline (Axis option), a segment of the stair (Segment option: landing - stair flight), the skew method of the steps (Steps option) or the distance between the steps (Distance option).