Round Corner Extension Sketchup Free Download !!install!! May 2026

The RoundCorner extension for SketchUp, developed by Fredo6, is an essential tool for creating realistic 3D models by rounding or beveling sharp edges. While it was originally free, it has transitioned to a paid model with a free trial period. Key Extension Details Developer: Fredo6.

Primary Functions: Round Corners, Sharp Corners, and Bevel Edges.

Compatibility: Works with SketchUp 2017 and above on both Windows and Mac.

Cost: Currently a paid extension (approx. $15 for a perpetual license) after a 30-day free trial. How to Download and Install

To use RoundCorner, you must download two specific files from the SketchUcation PluginStore. Step 1: Download Required Files Round Corner Extension Sketchup Free Download

LibFredo6 (Library): This is a mandatory shared library required for all Fredo6 extensions.

RoundCorner (Plugin): The actual tool for edge modification. Step 2: Installation Process


Finding the Round Corner Extension

  1. Open SketchUp: First, ensure you have SketchUp installed on your computer. The process might slightly vary depending on whether you're using the web-based version or the desktop application.

  2. Access the Extension Warehouse:

    • For the desktop version of SketchUp, go to Extensions > Extension Warehouse.
    • For SketchUp Free on the web, click on the "Extensions" icon on the toolbar or navigate to Extensions > Extension Warehouse if available.
  3. Search for Round Corner Extension:

    • In the Extension Warehouse, use the search bar to look for "Round Corner" or similar terms.
  4. Select and Install:

    • Find the "Round Corner" extension by ThomThom (or any other version that seems to match your needs).
    • Click on it, then click the "Install" button.

Free Availability

The Round Corner extension by ThomThom is available for free. SketchUp's Extension Warehouse hosts a wide range of extensions, many of which are free. Always check the details of the extension for any specific requirements or conditions.

Key Features


Part 3: How to Get a Working Version for Free (Legally)

If you want the Round Corner Extension for absolutely zero cost without pirating, here is your step-by-step guide to the legitimate free version. The RoundCorner extension for SketchUp, developed by Fredo6

Step 1: Create a SketchUcation Account Go to SketchUcation.com and register for a free account. This is the official distribution hub for Fredo6.

Step 2: Install the LibFredo6 Before Round Corner works, you must install Fredo6's shared library (LibFredo6). This is always free. Search for "LibFredo6" in the SketchUcation Plugin Store.

Step 3: Download Round Corner (Free version)

Step 4: Manual Installation

  1. In SketchUp, go to Window > Extension Manager.
  2. Click Install Extension.
  3. Select the downloaded .rbz file.
  4. Restart SketchUp.

The Limitation: The free version will only let you round corners with a maximum of 3 facets. This gives you a "chamfered" look, not a smooth radius. For 90% of architectural blocking, this is fine. For rendering close-ups, it is not.