n. & adj. — historical, Forestry
a board inserted into a cut in a tree for loggers to stand on while they saw (see Image 1).
Type: 4. Culturally Significant — The image of the Canadian lumberjack has endowed logging terms with particular importance in Canada, particularly in British Columbia, where "logger sports" are a feature of summer festivals (see the 1974, 2001 and 2010 quotations).
Although historically the term has been used in the US and Australia (see OED-3, s.v. "springboard" [3], DARE, s.v. "springboard", and AND, s.v. "springboard"), it is used most frequently in Canada (see Charts 1 and 2).
See also COD-2, s.v. "springboard"(3), which is marked "Cdn & Austral".