14 inch needles?

I have a set of 14 inch Addi Turbo needles. I am wanting to make a large (very large) square to put my dishes on to dry. What is the most amount of stitches that I can cast on without being TOO many? Also, how many inches would it be across? I would appreciate any insight! Thanks so much! :knitting:

It really depends on your yarn, and you need to CO to find out.

i use 14 inch needles with dk yar, it easily held the 84sts i have on there right now if that helps (thats on 6.5mm and an adult sized jumper if that helps)

susi