I’ve been buying 100ft rolls of 2x4 welded wire (4ft) from Tractor Supply, as they had the best price locally, around $57/roll + tax. Cage sizes would range from 5ft - 10ft, so I was getting up to 20 cages a roll for around $3/cage. Used two metal electric fence posts per cage, but found by checking around that I could get 4 ft sections of rebar for 0.99, so have started using those. So I’m spending around $5 per tree minimum.
Using 4ft fencing instead of 5 ft to save on costs, you can pull the fence up a 1ft in the future as the tree grows. Also, with rebar, you can weave it in between the fence squares and not have to secure it with ties.
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