Although most standard size cribbage board pegs are designed to fit an 1/8″ diameter hole, if you are planning to make your own crib pegs you should still take the time to measure the size of the holes in your cribbage board. The standard peg is typically 1 1/8″ tall and tapered to fit smoothly in and out of the hole.
Larger boards may take a 1- 5/8″ tall peg tapered to fit a 3/16″ diameter hole or a 2- 1/2″ tall peg tapered to fit a 3/8″ diameter hole.
You will generally need 3 pegs per track… two for pegging (keeping score) and the other for keeping track of the number of games won. For more elaborate boards you may use additional pegs for scoring skunks, turns and various other stats of the game or tournament.