The average stride length is between 2 and 3 feet, so 2 would be on the short end. Maybe a 10" gap? (I laid it out in my backyard and it doesn't look too bad)

Last summer I repaired a natural stone walkway my Great Grandfather made about 85 years ago and I made everything level (no grass between the stone, but on the sides.) You will need to keep up on it or the grass will grow over the stone. I thought the walkway was about 1' wide before last summer, turns out it was almost 3' wide.

Good luck with your project ;-)

Thanks Rockhead,

I was able to increase the distance to 9 inches by taking 2 stones out. I guess this will have to do.

Greg