Crapnell was 5 feet 5 inches tall, which was small for a defender. He had a "reputation for tenacity", however, and won nine Scotland caps between 1929 and 1933. Crapnell captained the team in four of those appearances. He is the most capped player in Airdrie history. Crapnell also represented the Scottish League XI five times, between 1929 and 1932.