Match the size of multiple background images In this tutorial in the first couple of minutes it is explained how to set the dimensions of a cube and match the background images to this mesh. I have tried to get it right but till now I did not succeed. This is what the creator of the tutorial says in the comments: 


  I'm keeping only one mesh and just changing the x and y values of my
  background images you can see me add at 3:00. We want all the
  background images to match that one mesh.


Here are my images:




I think front and back images match to the mesh. But for the right, left and top view I only get one dimension matching. I don't see how you can match both dimensions matching without changing the mesh
Your background images are scaled to different sizes. Scale them consitently to 27.6cm.



Then just place them just changing the x and y values of the backround images.