Sumner Square

I've been working on the square designed by Judy Sumner, and it appears to be far smaller than the other squares I've made. I know my gauge hasn't changed, and it actually isn't that far off on width, but it seems as though it will be much too short. Has anyone else made this square and experienced something similar? I suppose I could add extra rows in between the spider on the bottom right and the web on the top right.