Stair Tool Basics – Bullnose Stair

by Andrea Polgár-Veres · updated: 07.05.2017

 

  • Activate the Stair Tool and place any Stair of choice (Bullnose stairs are mostly made of wood).
  • Navigate to the floor plan and select the Stair and click on ‘Edit’ (The Edit button appears in a blue box next to the selected Stair). The Stair is an assembly element in ARCHICAD, so it has subelements. The subelements can be selected and edited one-by-one, if the ‘Edit mode’ is activated.
  • Select the second Tread and make it curved.
  • Click on the edge of the selected Tread and select ‘Edit segment using tangent’ option from the Pet Palette and draw a horizontal line.
  • Click to finish the input.

  • Let’s select the first Tread and add an additional node to its longitudinal side.

  • Then extrude the edge between the corner and the new node to the end of the second Tread.

  • Curve the shorter edge of the Tread the same way as the second Tread was curved.

  • Adjust the edge of the first step to the right position.

 

  • The Treads are ready, now the Risers need to be edited.
  • Select the Riser of the first step (dashed line) and stretch it.

  • Add a node to the Riser and move it to the right position.

  • Drag the endpoint of the Riser in order to make it vertical.

  • Curve the Riser using the ‘Edit segment using tangent’ option from the Pet Palette.

  • The same steps should be made with the Riser of the second Step.

  • Exit the ‘Edit mode’ by pressing ESC or clicking on ‘Exit Edit Mode’ on the blue panel at the left upper corner.
  • Another option for creating a Bullnose Stair is to create custom Treads using the Morph Tool and save them as Library Objects (Files › Libraries and Objects › Save Selection › Stair Tread).
  • Note: Stair numbering items should be edited as well to get them to the right position. Click here to see how to Edit Stair Symbol Components Graphically.
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