It depends on what you mean by “2 deep,” but in common beekeeping usage, double deeps are not rare at all and are a very standard hive setup. People use them to give the queen more room, support stronger colonies, and improve overwintering in some climates.

What the forum discussion suggests

Beekeepers in the discussion describe double deeps as a normal, practical choice rather than something unusual. One poster notes that some hives winter in one box while others go into two deeps depending on colony strength and late-season buildup. Another says they use double deeps or even multiple medium boxes because it gives the queen enough laying space and supports stronger colonies.

How rare is it?

If you mean “how rare is it for a hive to have 2 deep boxes,” the answer is not rare. It’s a common management style, especially where beekeepers want more brood space or are planning for stronger hives. If you mean something else by “2 deep,” the meaning changes a lot.

Possible meanings

  • Beekeeping: Two deep hive bodies, which is common.
  • Music/artist name: There are recent public references to “2 Deep” as a performer, so it may also be a name or title.
  • Gaming/other slang: “Deep” can appear in other contexts too, but the search results here most strongly point to beekeeping.

Plain-language answer

For beekeeping, finding a hive set up with 2 deeps is fairly normal, not rare. It’s one of the standard ways people manage hive space and winter preparation.