How much stretch?

Even though I posted this in the outdoor thread as well...I want a rounded answer.

Anyone grow the hso blue dream OUTDOORS? Trying to figure out how much trellis netting I will need and I wanted to know how much it stretched.

Thanks

Doubled in size stretched stopped in the 3rd week of flower

Ok I can deal with that. Someone told me 3 times the size....I didn't want 20 ft trees lol