Is it normal that Flow frames sag?
You mean the frame is bending downwards in the middle?
If that would be what you mean, I can only think you need to tighten the wires.
I had a couple of early batches of flow frames where the wires were quite sloppy and needed tightening before putting to work.
Yes that’s it - bending downwards in the middle.
It was indeed the very first release. I only noticed on my last inspection before I sold the hive. I think they only started to sag recently, and they worked just fine.
BTW, how do you tighten the wires?
You can find a video on the flow website where Cedar explains it thoroughly. Perhaps somebody here can provide you with a direct link to it. It’s not hard to do.
That bandana is priceless. Cedar, a hippy? NEVER! 
Ah… yes! I actually remember watching that video a long time ago… hoping I don’t have to do that.
Don’t worry, that bandana would great on you! Otherwise you could just get some really long elastic bands and use those on the frames instead. ![]()
Honestly, it’s not hard, just awkward. Else, go by the advice of our über hippy Dawn.
I am nowhere near cool enough to be a hippy. The ultra “square” is probably more my style.
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Any square scientist is a nerdy hippy deep down. How else could you be a scientist anyway?
Takes one to see one. 
You straightened the sagging flow frame with a bandana! That’s brilliant!
Amen to that, and vice versa ![]()
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it would be kind of cool if they could make a new type of wire- with an adjustment nut for tightening- like a turnbuckle?
Is the tensioning of the wires a regular maintenance thing?
Or is is something you do once and forget?
We only had to do it on 2 of 16 flow frame sets. All others are still tight after being in use for 2 - 3 years.
We will have to see in a few more years. We may have a few people on the forum with professional experience with those wires.
Have a feeling the flow people would use high quality materials.
Just had a look at my new hive and the wires are quite loose. I have to tighten them.
Well it is actually one of the original flow hives which I bought second hand but unused.
As I recall, Flow shipped them out in good working order but it was discovered that many loosened in transit, which prompted that adorable video. If you got them second-hand & unused, it’s likely that the folks who ordered them just never knew to check the wires. I also had to tighten a few of my frames initially, but they’ve remained snug since.