Inkscape has loads of keyboard shortcuts, and while I don’t know them all, I learned the ones that really speed things up when creating arrays of holes. I’ll design a “standard” crib board like this, to get you going. This will mainly come into play in the corners, as you will see. That way, we won’t have the pegs crowding each other. The head is the size we want to design the hole spacing for. They are made for a 1/8' hole, and they have a 7/32' head. I use #15 Columbia pegs for my boards, so let’s take a look at them, shall we? Anyway, I have no business interest in them, other than buying pegs from there. I am going to pick Pete’s Pegs, because I used to buy from the guy who owned the website before he retired. So, the first thing you need to do is figure out what pegs you are going to use. I think each peg should have it’s own “space” to exist and not be crowded on the board.
I have used cribbage boards where the holes are so close, the peg heads are wedged up next to each other, and I find it unattractive. Now, you are ready to begin designing your cribbage board.