clear lumber

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clear lumber, clean timber, clears, clear stuff, clear timber, free stuff

Wood free of knots and other defects.
References in periodicals archive ?
The emissions of the sapwood, mostly sapwood, and knotty charges were similar to clear lumber emission values.
It can tell the operator when to sacrifice some clear lumber in order to obtain a longer, more valuable piece -- and more importantly, when not to.
The theory of pruning pine for clear lumber is fine, and the government sang its praise for years.
The clear lumber used in Panel C had the most favorable attribute ratings as well as the most consistency among attributes.
MDF lends itself well as a substitute for clear lumber.