If you are contemplating a SCROG I’d suggest you look at @merlin44 and his grow journal. He has some lovely ones made from PVC.
My suggestion is to build one screen per plant. No two plants will finish at the same time and usually you will have one plant that needs a bit of TLC. It’s made much more difficult when it’s attached to another plant.
I built SCROG’s and attached them to the fabric pots so I could pick them up and move them around. Kinda like this:
Outside for pictures.
Thanks for the shout out @Myfriendis410, I used your design as inspiration.
This is my most recent grow when the frames/netting were put in place:
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Same grow some weeks later:
Another question is I will not be able to keep light out ventilating when flowering u think it will still bud
If this is an issue, get a 6" dryer vent hose and put through one of the lower openings. Bend the hose so that there is not a straight shot into the tent.