I pulled out the AC units from the windows and have put them back in the original boxes that they came in. Can I stack them one on top of another for storage? I know not to stack the units normally, but since they are in the manufacturer packaging I think it should be fine.

2 Answers 2


If you have put the units back in the original packing boxes they came in, then it should be fine to stack them. Normally, product boxes will indicate somewhere how high they can be stacked. That information is used by the people at the store and the people packing them on pallets. I would suspect that AC units could be stacked at least 3 high but do look on your boxes for that information.

  • 2
    Much helpful. Thanks. I only have 2 units so I'm sure it will be fine.
    – ste_kwr
    Jan 23, 2014 at 21:14
  • The original packing boxes almost always include dense styrofoam inserts top and bottom. If these are still present, the stacking should be fine (within limits). If they are not present, the boxes are better than nothing, but they may be prone to crushing in areas and an uneven distribution of pressure that may cause damage. Probably not very likely.
    – bib
    Jan 23, 2014 at 21:34

I don’t think there's much of a problem putting the units into storage since they're already in boxes, but do take the extra precaution to make sure that they are padded properly, especially if you're storing them for a long time. Cardboard boxes are just so susceptible to damage and you don't want those units tumbling down all over the place..

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