smokechase II
Addicted to ArboristSite
corner holding wood
Kiwilogger:
On the above British Columbia test/form. Look at page 21:
"Acceptable standard: Includes appropriate undercut and backcut are completed from high side, are slightly off level, depth of the undercut between 25% and 40% of the tree diameter. Undercut is cleaned out. The cuts forming the opening of the undercut are 1/3 to ½ the length of the top cut. Backcut is slightly above the undercut, slightly off level. Holding wood is preferably maintained across the entire stump but at minimum must be on both corners. Also see *Note"
"*Note:
Timber 60 inches or more in diameter can have the heart wood cut out of the stem, but holding wood must be maintained on both corners of the stump to maintain control of the tree."
This is what I have been taught with regard to the corners, (sapwood).
Trivia; not the same for the face center bore restriction of 60" or more in diameter.
Kiwilogger:
On the above British Columbia test/form. Look at page 21:
"Acceptable standard: Includes appropriate undercut and backcut are completed from high side, are slightly off level, depth of the undercut between 25% and 40% of the tree diameter. Undercut is cleaned out. The cuts forming the opening of the undercut are 1/3 to ½ the length of the top cut. Backcut is slightly above the undercut, slightly off level. Holding wood is preferably maintained across the entire stump but at minimum must be on both corners. Also see *Note"
"*Note:
Timber 60 inches or more in diameter can have the heart wood cut out of the stem, but holding wood must be maintained on both corners of the stump to maintain control of the tree."
This is what I have been taught with regard to the corners, (sapwood).
Trivia; not the same for the face center bore restriction of 60" or more in diameter.
