for scrogs stay away from wire use string you could make a table from 1" or 1/2" pvc pipe use screws at what ever interval going around top part of square table ,,,
If you want do 2" x 2" i use 4" x 4" use string this way when your ready to harvest ,, all you do is cut string and your on plants sometimes buds grow into string ..
Which you can easily pulll out of bud with wire your screwed