I would use two, and here is why. Most videos on youtube showing you to dump the package into a box are a great way to do damage to a lot of package bees in the process, ending up with lots of flying bees and the associated drift. We hive packages very differently, into 10 frame boxes but same trick will work with 2 high mediums.
We set up the box with frame feeder then 4 frames. Pull the queen cage out and hang it between the first two frames. Cut out the screen on one side of the package and drop bees onto the queen, then set the package into the gap where frames are missing. Final setup, ensure there is at least a liter of syrup in the frame feeder, and pollen patty above the frames. Come back tomorrow and remove the now empty package as the bees that were left in it will for the most part migrate over the combs to the cluster by the queen.
No shaking, no muss, no fuss, and no flying bees.
We set up the box with frame feeder then 4 frames. Pull the queen cage out and hang it between the first two frames. Cut out the screen on one side of the package and drop bees onto the queen, then set the package into the gap where frames are missing. Final setup, ensure there is at least a liter of syrup in the frame feeder, and pollen patty above the frames. Come back tomorrow and remove the now empty package as the bees that were left in it will for the most part migrate over the combs to the cluster by the queen.
No shaking, no muss, no fuss, and no flying bees.