Click here to download file.

I have added another handy tool to the Construction Plus Toolbar. This tool allows the user to successively select a group or component instance and get its overall dimensions (bounding box dimensions).

There has been a Get Dimensions tool  Ruby script around forever and I have used it a lot. It’s very handy. But it had the following shortcomings:

  1. The tool had no icon. You had to access the Tool menu to select it.
  2. The script was not implemented as a Tool class which means you could only use it once and then had to select it again.
  3. The dimensions were provided in an annoying message box which the user had to close each time.
  4. The tool didn’t provide the definition name of the selected group or component instance.

How Get Dimesnions tool is used.These missing or annoying features have all been implemented or fixed in this tool. The tool icons and tool cursor have the image shown above right. The picture at left shows how this tool is used. Click on image to enlarge it and see the details. Notice that after selecting the Back Leg component instance that the tool remains active and will continue to remain active until another tool is selected. So you can examine a number of groups or component instances successively.

Two words of caution when using this tool:

  1. The reported Thickness will always be the smallest dimension. Width the next smallest dimension and Length the largest dimension. In some designs the Length is shorter than the width for grain direction purposes.
  2. Visually check your bounding box to see if it reflects your intended axis orientation. If not, use the Change Axis tool to correct it.

An error message will appear if you select an entity that is not a group or component instance. However, no such message will appear if you click in white space, that is, if you click on no entity at all.

Download Construction Plus Tools Including Get Dimensions

Download and save it in a folder of your choice; in Windows 7 that is usually the user’s Downloads folder. Using WinZip unzip the file, select all files and folders and Extract them to your Plugins folder.

Plugins Folder after extractiong file.When you have completed the extraction described in the previous paragraph your Plugins folder should have five new folders and six new files as shown in blue highlighted folder and files in the picture at right.

Upon opening SketchUp you will need to go to menu View/Toolbars and enable Construction Plus (not to be confused with Construction). This will display the Construction Plus toolbar on your desktop which you can position in the usual way.

Enjoy! And please report all problems to

Leave a Reply

2 Responses to “Get Dimensions Tool Added To Construction Plus Toolbar”

  1. Walt M. says:

    Now that’s a cool script. Have used the previous ver. quite a bit. Glad to see you added Weld to the toolbar rather than under plugins. Thanks to you and your video tutorials they have changed my life in SU.

    Thanks Walt

  2. Joe says:

    Hi Walt,

    Glad you like the script and the tutorials. Like you I have used that script a lot. So much so that I had to make it a little more efficient. Gotta love SketchUp and its implementers for providing the Ruby API.