After making up the cheap nets I worked out that I still had enough twine on the ball to make a 25 yard net. I made the net with a 4.25 inch mesh 13 meshes deep in the body of the net, plus selvedges giving a 14 mesh 59.5" deep net.
I used the twine off ebay I have found it a lovely twine to knit with strong, slightly stiff but takes a single knot well. I would say that it needs to be despooled correctly otherwise you could get twists in it.
Why I made the net god knows as I dont really need it, I suppose it will go in the bag with the others never to be used.