1933: Plywood developed
1934: Glulam developed
1968: Wood I-joists introduced
1980:OSB introduced
1983: Engineered wood represents less than 1% of the combined structural lumber and engineered wood volume.
1990: Engineered wood productions represents 1.7% of structural lumber products.
1999: OSB production exceeds plywood production
2007: Engineered wood reaches 6% of structural lumber products.
2008: Production of OSL in meaningful qualities begins
