Before running the extrusion script, you must explicitly declare how the plugin should handle the final step landing.
Master SketchUp Modeling: Fixing the "s4u stair crack top" Geometric Issue
Vacuum out all dust, loose plaster, or wood shavings. s4u stair crack top
| Issue | Possible Cause | Solution | | :--- | :--- | :--- | | The plugin menu parameters don’t change after entering new values. | A bug in some versions may prevent direct menu editing. | Use keyboard commands or type parameters directly into the dialog. Alternatively, restart SketchUp and try again. | | The generated stair does not match the 2D plan (e.g., treads are misaligned). | The selected face(s) may not represent a valid stair outline, or the “Rise” value is inconsistent with the total height. | Double‑check the plan: each tread should be represented by a separate rectangle. Adjust the Rise value so that total height is evenly divisible by it. | | Handrails do not generate at all. | This feature may be disabled in the trial version, or the “Offset” value may be set to zero. | Ensure you are using the paid version and that “Generate Handrail” is checked. Set an offset distance greater than 0. | | The plugin crashes or fails to install. | Incompatible SketchUp version or corrupted RBZ file. | Verify that your SketchUp version supports the plugin (typically 2016–present). Download a fresh copy of the RBZ file and reinstall. | | Materials applied to the stair disappear after an update. | Dynamic update recreates geometry, overwriting custom material assignments. | Apply materials after finalizing the stair design, or use SketchUp’s “Component” strategy to lock materials in place. |
[ Lower Steps ] ---> [ Parametric Extrusion ] ---> [ CRACK HERE ] ---> [ Top Floor Landing Face ] 1. Re-align and Set Target Parameters Globally Before running the extrusion script, you must explicitly
| Feature | Description | | :--- | :--- | | | Select a planar face representing the stair’s footprint and generate a full 3D staircase instantly. | | Multiple Stair Styles | Choose from six types:简式 (Simple), 平板式 (Slab), 折板式 (Folded), 搁板式 (Shelf), 踏板式 (Tread) and实体式 (Solid). | | Dynamic Updates | Changes made to the original 2D plan are automatically reflected in the 3D model, eliminating the need to rebuild stairs when modifications occur. | | Ramp Capability | Generate not only stairs but also ramps in simple or solid style. | | Parametric Control | Adjust total height, tread thickness, rise, run, landing dimensions and other parameters with intuitive controls (including keyboard shortcuts). | | Handrail Generation | Optionally create railings and specify their offset distance from the stair edge. | | Material Application | Apply materials to the entire staircase or to individual parts (treads, risers, stringers, etc.). | | Shortcuts | Built‑in keyboard shortcuts for rapid parameter changes and style toggles. |
If your goal is a beautiful, safe, and functional staircase—whether digital or physical—understanding the meaning of your search term is the first step toward the right solution. | A bug in some versions may prevent direct menu editing
If you type an impossible height configuration, the top step can clip outside your boundary boundaries. Right-click anywhere on the screen during the tool state to open .