Your comments

Step and repeat should help for that particular project, unless all the shapes are different in details.

Here I made a simple card, then multiplied it with "step and repeat", then cloned the group to make a second row, and finally made the layout like yours: http://imgur.com/a/qHlAM
Well, it works a slightly different way, but at least you can distribute a single object around the scene and then tune them up one by one.

Anyway, I got your pain, will have a look at what we can do about that.
we've done usb drives here: http://boxshot.com/2016/05/24/boxshot-4-11.html please place another requests for other shapes. one request per shape, as otherwise it is terribly difficult to rate them
we've done usb drives here: http://boxshot.com/2016/05/24/boxshot-4-11.html please place another requests for other shapes. one request per shape, as otherwise it is terribly difficult to rate them
What if we add a menu item that you click and get a pop up window with the bounding box dimensions in centimeters or inches? Will it be fine?
What should we do for complex shapes? Some of them are not boxes at all.