Personally, my preference is to
grow orchids on trees and potted plants. But I do have quite a few mounted orchids and other epiphytes hanging on wire mesh that I've hung from my shade shelter. It works well for wooden slabs...but is awkward for branches.
The wire mesh partition looks like it would work well enough. My concern would be how to prevent the usual suspects from having easy access to the orchids. That's why I hang my wire mesh from my shade structure.
For the heck of it I looked up how much it might cost to make the wire partition yourself...
1" Elbow: 2 x $4.50
1" Tee: 4 x $5.25
1" Cross: 1 x $5.75
1" Foot Pad: 2 x $4.25
= $44.25
Electric Metallic Tube Conduit (1 in. x 10 ft.): 6 x $5.89
= $35.34
14-Gauge Welded Wire (4 ft. x 50 ft.): 1 x $37.47
$37.47 / 2 (You can use the other half when your collection grows)
= $18.75
Total = $98.34
Is that right? My figuring ain't so great. Not too much of a difference in cost. There is of course the opportunity cost of having to do it yourself. But it could be handy to be able to disassemble the structure. Maybe you would want to take it to display your orchids at your local orchid show.
If you do it yourself...it helps to take a fitting when you go get the tubing...just to make sure the tubing fits.
I found out about the fittings when I visited the collection that the Epiphyllum society maintains at the LA Arboretum. They use them to create structures to hang their Epiphyllums on.