clear timber

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

Wood free of knots and other defects.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The grade stresses in [2] such as tension, compression and bending stresses were obtained as a factor of small clear timber stresses.
Hopefully, you have some existing trails, log decks and even old openings or slightly neglected fields that can easily be mowed, disked and planted without having to clear timber.
Food shortages in the Third World create further damage to the global environment, as subsistence farmers clear timber and grow crops on soils prone to erosion.