Toh Rebars V120 Extension For Sketchup Download Fix Instant
TOH Rebars V120 is fundamentally broken on SketchUp 2023 and 2024 due to the removal of Win32API. You have three options:
John tried various approaches. He searched online for solutions, checked the extension's official website, and even reached out to SketchUp forums. Some suggested deleting certain files and reinstalling; others recommended checking for software conflicts. Despite these efforts, the problem persisted. Frustrated but not defeated, John decided to dig deeper.
Warning: Most free download sites offering "TOH Rebars V120" are filled with fake buttons, adware, or malicious .exe files. The actual extension is a simple .rbz or .zip archive (under 500 KB). toh rebars v120 extension for sketchup download fix
If the extension installed but you can't see the tools:
If the download from the Extension Warehouse or the developer’s site is failing or corrupted: TOH Rebars V120 is fundamentally broken on SketchUp
For civil engineers, structural detailers, and BIM modelers working in reinforced concrete, TOH Rebars V120 (often referred to as TOH Rebar Tools) was once a legendary free extension. Before the rise of paid powerhouses like Rebar Tools for SketchUp or AgiliCity, TOH Rebars offered a lightweight, efficient way to generate 3D reinforcement bars (rebar) directly inside SketchUp.
However, the extension has become notoriously difficult to find and install. The original developer’s website has vanished, many download links lead to 404 errors, and users report constant "Load Errors" or missing toolbar icons. If you are reading this, you have likely searched for "toh rebars v120 extension for sketchup download fix" because: This article provides a 100% working fix —including
This article provides a 100% working fix—including verified download sources, manual installation methods, and compatibility patches.
After installation, you might see red text in the Ruby Console. Here is how to fix each error.
| Error Message | Cause | Fix |
|---------------|-------|-----|
| cannot load such file -- progressbar.rb | Missing legacy UI library | Download progressbar.rb from GitHub and place it inside the TOH_Rebars_v120 folder. |
| undefined method 'add_observer' for nil:NilClass | SketchUp UI API change | Open toh_rebars_dialog.rb. Find all instances of add_observer and replace with add_observer(self) |
| Toolbar 'TOH_ReBars' not found | Toolbar registration fails | Manually load toolbar: Right-click any toolbar area → check "TOH Rebars." |
| Error: #<ArgumentError: wrong number of arguments (given 3, expected 1)> | Outdated method call | Locate UI.create_cursor and change to UI.create_cursor(bitmap, hot_x, hot_y) if available. |