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| W.T.C. | | Whole tree chips. ... |
| W.T.C. fires | | Fires occurring in W.T.C. piles, usually as a result of ... |
| Waiting repair time | | See machine time, scheduled operating time, delay time, mechanical delay ... |
| Wane | | The absence of square wood on the edge of a ... |
| Wane allowance | | The maximum percentage of wane that can be left on ... |
| Water table | | Upper limit of a saturated zone in the soil ... |
| Weave or wobble | | A circular saw will weave, wobble, or flutter if the ... |
| Wedge | | A triangular shaped tool used to separate two objects. Used ... |
| Wetland | | 1.) Transitional area between dry land and aquatic areas having ... |
| Whack (whack rules) | | A Forestry Forum adjective used to describe an amount of ... |
| Wheeler | | Term used in New England for a tandem axle straight ... |
| Whistle Punk | | The Punk was either a green kid or an oldtimer ... |
| Whole tree | | All components of a tree, except the stump. Also known ... |
| Whole-tree chips | | Chips made from a whole-tree. ... |
| widowmaker (widow maker) | | A limb or broken tree-top that falls or has the ... |
| Wildfire | | Unplanned fire requiring suppression action. Can be contrasted with a ... |
| Winch | | Steel spool connected to a power source. Used for reeling ... |
| Wind shake | | Crack in a tree caused by high winds ... |
| Windfall | | Tree or trees that have been uprooted or broken off ... |
| Windrow | | Long narrow pile, usually of logging slash removed from a ... |
| Witness tree | | Tree used by surveyors to mark the location of a ... |
| Wolf tree | | Large rough tree, generally not good for lumber ... |
| Wood | | A solid lignocellulosic material naturally produced in trees and some ... |
| Wood conversion | | Transformation of natural timber into any kind of commercial product. ... |
| Wood pulp | | Fiber from wood with varying degrees of purification that is ... |
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