# Mice Guard Entrance Mesh **URL:** \ **Category:** Modifications & Building Bee Hives\ **Created:** [January 17, 2016, 2:18am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699 "2016-01-17T02:18:06Z")\ **Posts on this page:** 9\ **Page:** 2

**Author:** ![sgoldate](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sgoldate](https://forum.honeyflow.com/u/sgoldate)\ **Post date:** [April 15, 2016, 12:03am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/21 "2016-04-15T00:03:21Z")

Thanks Lorne! According to the article, drones would have trouble getting through anything less than 5.4mm. I’m wondering why the flow hive entrance is so tight? If I use an entrance reducer, I’d have to be careful to position it at the more open end, wouldn’t I? ---

**Author:** ![lhengst](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.honeyflow.com/lhengst/32/2388_2.png) [@lhengst](https://forum.honeyflow.com/u/lhengst)\ **Post date:** [April 15, 2016, 12:21am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/22 "2016-04-15T00:21:41Z")

I didn’t measure the flow entrance from the inside (and now that the hive has bees in it, I won’t be able to easily measure it). But… when I measured the entrance from the outside, the entrance was plenty big enough, enough to not cause any worry about the size of the entrance from the other side of it. I don’t remember the actual dimensions, but, I can tell you with certainty that the metal entrance reducer I use has holes big enough for drones and those holes are about 80% of the size of the entrance opening (see photo for an idea of what I am referring too). I doubt the 2.5 degree slope for \<1" wall of the brood box is enough to shrink the opening enough to matter. Once the bees are past the wall of the brood box, they can fly up. ![](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex016/uploads/honeyflow/original/2X/1/1906983aa79ac9d102029ab37030fbaf958d1169.jpg) So… I think there are 3 possibilities: - I am not understanding your problem, maybe post a picture to help explain better - Your hive was not manufactured properly - There was a mistake in your measurements or something similar ---

**Author:** ![sgoldate](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sgoldate](https://forum.honeyflow.com/u/sgoldate)\ **Post date:** [April 15, 2016, 1:18am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/23 "2016-04-15T01:18:33Z")

Good idea to send some photos. Uploading now. 🙂 ![](https://us1.discourse-cdn.com/flex016/uploads/honeyflow/original/2X/6/67cc38e3b0410ff8a0170bdb0b3a1e485a17aff6.jpg) ![](https://us1.discourse-cdn.com/flex016/uploads/honeyflow/original/2X/7/706493263f73ffcc720aa583a6bc1330d4df8d83.jpg) ---

**Author:** ![sgoldate](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sgoldate](https://forum.honeyflow.com/u/sgoldate)\ **Post date:** [April 15, 2016, 1:20am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/24 "2016-04-15T01:20:15Z")

One entrance height reduces to 6mm, the other to 5 mm. ---

**Author:** ![lhengst](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.honeyflow.com/lhengst/32/2388_2.png) [@lhengst](https://forum.honeyflow.com/u/lhengst)\ **Post date:** [April 15, 2016, 1:28am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/25 "2016-04-15T01:28:33Z")

> [@sgoldate](#): > > One entrance height reduces to 6mm, the other to 5 mm. Well… at least one of us is bonkers 😄. I am reading that as the first side is 10mm and the other side is 11mm. You are getting roughly half of my numbers. I vote myself as bonkers, but, let us discuss. ---

**Author:** ![sgoldate](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sgoldate](https://forum.honeyflow.com/u/sgoldate)\ **Post date:** [April 15, 2016, 1:43am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/26 "2016-04-15T01:43:09Z")

Duh, you’re right. That was pretty silly of me! 😕 Thanks for pointing it out. Of course, now it all makes a lot more sense. ---

**Author:** ![lhengst](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.honeyflow.com/lhengst/32/2388_2.png) [@lhengst](https://forum.honeyflow.com/u/lhengst)\ **Post date:** [April 15, 2016, 1:47am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/27 "2016-04-15T01:47:39Z")

> [@sgoldate](#): > > Duh, you’re right. That was pretty silly of me! 😕 Thanks for pointing it out. Of course, now it all makes a lot more sense. I guess we are both bonkers! Welcome to the club! ---

**Author:** ![sgoldate](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sgoldate](https://forum.honeyflow.com/u/sgoldate)\ **Post date:** [April 15, 2016, 1:51am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/28 "2016-04-15T01:51:02Z")

Ha ha, thanks for taking it light heartedly. I think it was a matter of seeing what I wanted to see. ---

**Author:** ![Semaphore](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.honeyflow.com/semaphore/32/14994_2.png) [@Semaphore](https://forum.honeyflow.com/u/Semaphore)\ **Post date:** [April 18, 2016, 6:45am UTC](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699/29 "2016-04-18T06:45:53Z")

@Dawn_SD I believe them! A mouse can get through the tiniest of holes. I once watched a mouse get through a hole in drywall about 8mm-10mm and try to drag a chicken wishbone back through . The mouse could fit but the bone wouldn’t. If they can poke their head through a hole- they can squeeze their bodies through too. Even if they appear to be significantly larger then the hole: shave the fur off and you will see how tiny they really are. Mice don’t have collar bones! [Previous page](https://forum.honeyflow.com/t/mice-guard-entrance-mesh/4699.md?page=1)