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Open mesh floor hole size

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The Hyde Ranger 

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I want to make some open mesh floors and would like to know if plastic mesh with 5mm x 5mm holes would be suitable, :confused: Your comments would be appriciated, Regards Nigel
 

Hombre 

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Hi Nigel,
Check this out: Dave Cushman's site to the rescue once again. :svengo:

5mm is a good size for pollen stripping, but sub 4mm is required to be bee tight.
 

Poly Hive 

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I agree. Bees will get out of 5 x 5 and you know where they will land...

PH
 

Hombre 

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RAB, do you perchance have any information regarding the maximum size of mesh required to keep the wasps out?
 

oliver90owner 

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Hombre,

Depends really on the size of the wasp! I do know I have an expanded mesh floor sheet, from Thorne, through which some wasps can squeeze through just a few of the holes! I don't think that would normally present a hazard as an OMF, and certainly not on a strong colony, but demonstrates the point. I put an OMF over a few frames, just while re-organising frames and colonies, last year and they were inside that super in short time!

Regards, RAB
 

Norm 

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4mm is QE size 2mm could possibly not let all varroa fall through. 3mm is ideal.
 

taff.. 

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I've just found a chart that gives mesh sizes, it seems that mesh size 10 is slightly smaller than 2MM, so maybe a 9 or even 8 might be 3MM
 

jimbeekeeper 

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You also need to consider % open area V hole size, for maxium chance of mites falling through and not sitting on non hole section.
 

oliver90owner 

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Poly Hive,

But did they get access through the floor mesh or another hole?

I wrote: wasps can squeeze through just a few of the holes!

I don't need to answer any more than that. If you don't believe what I wrote, that is up to you.

RAB
 

beebreeder 

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Try these people, they do squares cut to size and are very helpful http://www.jtwirecloth.com/
as for plastic I was warned against it years ago as the bees can and do chew their way through it
 

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