how to display overall dimensions for furniture Is there a way to display a furniture design’s overall dimensions in Blender 3D for the purpose of presentation?  Please see attachment for visual.  

When I import a wrl file into Blender, the furniture design consists of many parts.  The only way I know how to get the bounding box for the entire furniture is by joining all parts.  However, there seems to be no way to get the bounding box to illustrate its dimensions.  In Solidworks, the bound box can display dimensions.  Is there a similar function in Blender 3D?  Thank you very much!
In your specific case, the MeasureIt addon makes sense.
However, there are also different ways to measure stuff inside Blender UI.


Measure Tool (length and angles, set by mouse drag)
Measurement Overlay (measurement of selected geometry, like bounding boxes)