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Stair Tool Basics - How to place stairs using the new Stair Tool

Andrea Polgar
Graphisoft
Graphisoft
To place a stair you need to draw its Baseline (blue line), which is basically a polyline. So the input and the connected Pet Palette options are similar to placing the polyline in ARCHICAD. The Stair 'Input Method' (Upward / Downward) defines wherever the first click defines the bottom or the top of the stair. (In this article the option 'Upward' is selected.)
wp-content_uploads_ac21_help_03-1-elements-virtual-building_StairUpDown.png
But the input works in 2D (Floor Plan) and in 3D as well. During the input ARCHICAD provides a visual feedback, how the stair will look like including the number of risers. Modifying the Baseline changes the walking line and shape of the stair.

In 2D – Polyline Method

Straight

  • Activate the Stair Tool
  • Define the settings of the stair in the Stair Default Settings
  • Enter the first node of the Baseline of the stair (make sure that ’Flight’ is selected in the Pet Palette)
  • Define the end point manually (ghost preview helps you in that)
  • OR do a double click to finish the stair, the second point will be placed automatically
wp-content_uploads_2017_08_staright_stair-1024x695.png

Straight with a Landing

  • Activate the Stair Tool
  • Define the settings of the stair in the Stair Default Settings
  • Enter the first node of the Baseline of the stair (make sure that ’Flight’ is selected in the Pet Palette)
  • Do a click to define the starting point of the landing
  • Activate the ’Landing’ command on the Pet Palette
  • Do a second click for defining efine the end point of the landing
  • Activate the ’Flight’ option on the Pet Palette
  • Define the end point manually (ghost preview helps you in that)
  • OR do a double click to finish the stair, the second point will be placed automatically
Tip: Keep the ’Shift’ button pressing (for keeping the direction orthogonal)

Straight with an automatic Landing

See the related Help Center article here: Stair Tool Basics – Automatic Landing

L-Shape

  • Activate the Stair Tool
  • Define the settings of the stair in the Stair Default Settings
  • Enter the first node of the Baseline of the stair (make sure that ’Flight’ is selected in the Pet Palette)
  • Do a second click to define the corner point of the landing
  • Do a turn using your mouse
  • Define the end point manually (ghost preview helps you in that)
  • OR do a double click to finish the stair, the second point will be placed automatically
wp-content_uploads_2017_08_L_shape.gif

U-Shape

Method 1

  • Activate the Stair Tool
  • Define the settings of the stair in the Stair Default Settings
  • Enter the first node of the Baseline of the stair (make sure that ’Flight’ is selected in the Pet Palette)
  • Select the ‘Landing’ from the Pet Palette.
  • Move the cursor into a horizontal position.
  • Do a click when you satisfied with the length of Landing.
  • Now select the ‘Flight’ icon from the Pet Palette and do a turn
  • With a double click finish the Stair.
wp-content_uploads_2017_07_U_shape_stair.gif

Method 2

  • In this case the the 'Landing' Pet Palette options is not used. The 'Segment Type' is modified after placing the stair.
  • Activate the Stair Tool
  • Define the settings of the stair in the Stair Default Settings
  • Enter the first node of the Baseline of the stair (make sure that ’Flight’ is selected in the Pet Palette)
  • Move the cursor into a horizontal position.
  • Keep the ’Shift’ button pressing
  • Do a click when you satisfied with the length of Landing.
  • Do a turn
  • With a double click finish the Stair
wp-content_uploads_2017_08_Screen-Shot-2017-08-29-at-16.51.52-1.png
  • Select the Baseline (blue line) of the stair
  • Click on the Baseline
  • Select the ‘Segment Type’ option from the Pet Palette
  • Select ‘Landing’
wp-content_uploads_2017_08_select_segment_type_stair-298x300.png
  • Click Ok.
See the related Help Center article here: Stair Tool Basics – U-shape with equal flights

Spiral stair

See the related Help Center article here: Stair Tool Basics – Spiral Stair

Custom shaped stair

It is possible to create custom shaped stairs with polyline input or edit existing stairs.   Baseline modifies the walking line. Boundary Line

In 3D – Polyline Method

In 3D Window placing stair works the same way as in 2D. A 3D ghost preview is displayed during the input and the end/starting point of the Baseline can be snapped to the base point or to the top of existing elements.

Magic Wand

Magic Wand places the Baseline of the Stair based on the geometry of the existing element. Check the following video to see how to create stairs using the Magic Wand.

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