how close can you put 2 hives next to each other?

[CliffDale]

Some of my hives are sitting on pallets. I can get 2 national hives with a gap of around 1foot / 300mm between them.

I dont want to turn them to opposite directions because of the location.

Will this work or is it too close?

 

[xwb]

Absolutely fine, well, I've never done it, but I know many who do

 

[Midland Beek]

I would think a foot is easily enough. My hives are in pairs, only about 3 or 4 inches apart. Bees can count up to three, so avoid rows longer than this to reduce drifting.