A lapped layout is a board with 61 holes – play two laps to make the now standard 121 total!
A continuous layout has 121 holes in a row – no laps needed.
Both designs are quite capable of scoring a game of cribbage, and the preferred method is an individual choice. Some people have trouble remembering which lap they are on – a continuous board may be the answer. Sometimes the design just can’t be made with a continuous track.
Below is a picture of a continuous two-track board with 121 holes.