Overal dimensions of objects I've made the model of a table, actually it consists of 3 objects (i need to keep them as separate) is there any way how I can see the overal dimensions (actually I  need to get the height) of all objects that the table consists of ? After selecting objects the panel on the right shows the dimensions of the bigest object one.


Thx.
You could enable edge or face infos in Edit Mode it would display the measures for the selected edges/faces since only one object is active in Edit Mode you can only pick one. 

Although you can set Viewport Shading to bounding box there is no option to display the length. 



Related:


How to model effectively using exact measurements?
Display bounding box around objects