roundwood

roundwood noun

1. forestry small pieces of timber (about 5–15 cm, or 2–6 in.) in diameter; small logs

Collins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012