Ox,
mine are 23 diameter and 21 inches deep.

In my case i like the deeper ones as i feel i can grow a decent size plant as opposed to a smaller shallower pot with smaller root system. I like the bigger root system in my pots as opposed to smaller one as i feel but cannot prove the bigger the root system perhaps the better for storage come our cold winters as the roots feed and store things to the plants at certain times.

Personally since storage, the cost of growing medium, weight and difficulty of movement are not considerations i would go big and have a bigger root system .
Im sure you have seen my pictures of the ones in larger pots on patio although i bought new ones this year there basically same just heavier duty.
Just my thoughts Ox.
Best Season
Martin

Martin:
When you re-pot do you find that the figs have used all the depth in the pots, or do they use only the upper portions?
Ox

Hi Ox
as i repot smaller plants into next size pot they have not yet filled the original pot with roots.
When they are in final size pot they fill the whole pot top to bottom and to the sides with roots after 3 years or so. Here is of root prune and what it looked like before root prune after 3 years in large pot.
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Thanks, Martin
That pretty well tells the story. Half-barrels will not be at all too large. I really need to live where figs can go into the ground!!!!! I probably would if I could just get all my kids to pull up stakes and come with me. '
Ox

In my case I find my half barrels are too large & are difficult to roll on to its side to pull plant out for root prunning. I have 3 half barrels & I leave them outside during winter. Just too cumbersome to move. The ones Martin have are easier to move about for storage especially if you have 10 or more to move. Root prunning is easy. I just use a big wood saw & the roots comes apart easy.

Paully, I agree that the half barrels are a pain to move. The ones I have are plastic and they deform as well if they are not on a very level base. I will move them with a lift however, so it really does not matter that they are heavy. I can always tip them over for root pruning.

No matter how good our pots are, the potted figs will never grow like those in ground. It is just a case of better a potted fig than none.

I have established cuttings now of two trees that have grown unprotected for many years in Tulsa. We will see how those fare.
Ox