Yes, Robin is correct. The drawn line and the holes it covers are shared by two squares. Also, where the lines intersect, that hole is shared by four squares (above & below and left & right). I hope this will motivate you to try canvas if you haven't already!
I've been putting together my Mystery kits...am waiting on a few threads and mainly the canvas to arrive so I can get them off in the mail. More info about the Mystery Project is on my website. You can still sign up...Besides the Peacock colorway (my original colors), the "bestsellers" so far are Appalachia & Sherwood Forest. I'm actually thinking about using the Sherwood Forest threads for a new design - it's one of the latest threads Caron released (yes, about a year ago!) and I've been wanting to do something with it.
Here's another look at my current "WIP"! It's moving along and I've already decided to make some changes! What else is new?
Work is done for the day and now I get to play with a needle and thread! Happy Stitching!