Take three standard size 16x16x16 medium moving boxes. Parallel to where one of the creases going around the box would be, lightly score 4” in from the crease.  Now fold on the crease so that you have a new box side that has one 20 inch side and one 12 inch side. 


Score and crease the opposite side on the corresponding 4” from the original crease. You now have a 12x20x32 tube. 

Do this with all three boxes. 

Slide one box around the middle of the object, in such a way that it is no closer than 16” from either end.  

On the other two boxes, on only one end of the box, cut a new flap section for the 4” you moved the crease. You now have a 4” flap, a 16” flap, and a 12” flap. Fold and tape the end of the box to keep it fixed in 12” 20” mode. 

Slide the box over one end of the object. Tape it firmly onto the box around the middle. Do the same thing with the third box. 

Can you tell I’ve moved myself 6 times in the past 10 years and have too much stuff? 

This can work for any case where two times the sum of two of your shorter sides is the distance around a standard moving box.

And it is how I packaged my 14” cubes in a 12”x12”x16” standard book box. There was a small square that wasn’t covered at each end.