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| Half-track | | Vehicle moved by a pair of short, endless articulated belts, ... |
| Hammering | | Straightening, tensioning, or flattening a saw blade manually with a ... |
| Hang-up | | 1.) In felling, to have a tree catch on another ... |
| Hank | | A coil or loop of something, especially twine, yarn, or ... |
| Hardwood | | 1.) Generally, a deciduous broad-leaved species of trees.
2.) Dicotyledonous trees, ... |
| Harvest functions | | Bucking -See slashing (in this section).
Bunching -Gathering and arranging ... |
| Harvester | | See harvesting machine classifications, multifunction machines. ... |
| Harvesting | | Removing merchantable trees (contrasts with cuttings, which remove immature trees). ... |
| Harvesting machine classifications | | The mobile machinery used in forestry is classified into major ... |
| Haul | | 1.) Conveying wood from a loading point to an unloading ... |
| Haul-back block | | Block used to guide the haul-back line. ... |
| Haul-back line | | Rope used in cable logging to haul the main line ... |
| Haywire operation | | Contemptuous term for logging operation that has poor equipment. ... |
| Head rig | | Principal machine in a sawmill, used for the initial breakdown ... |
| Head tree | | Spar tree at the landing of a skyline logging operation. ... |
| Headblock | | That portion of a sawmill carriage on which the log ... |
| Headrig | | Sawing equipment used in the primary breakdown of logs. ... |
| Headsaw | | In a sawmill, the large band saw or circular saw ... |
| Heartwood | | The wood extending from the pith to the sapwood, the ... |
| Heel boom | | 1.) Loading boom that uses tongs to heel or force ... |
| Heel boom | | A loader with a grapple or tongs at the end ... |
| Heel tackle | | System of lines and blocks used to tighten the skyline. ... |
| Herbicide | | Chemical used to kill or retard the growth of plants; ... |
| High grade | | 1.) Good quality timber.
2.) To cut the cream of the ... |
| High rigger | | Logger who tops trees and rigs them with guys, blocks, ... |
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