Other directional notch methods

Different directional notch methods than open face notches.

Open-face directional notch with larger opening angle

Inverse notch with larger opening
• Flat and sloping terrain
• Directional notch opening more than 70°
• The bottom cut is angled downwards from the felling cut
• The felling cut in line with or slightly above the level of the directional notch
+ The hinge remains intact until the tree hits the ground
- Higher stump height

Inverse directional notch, "Humboldt"

Inverse directional notch,
• Thicker trees on steep slopes
• Directional notch opening at least 45°
• Horizontal cut has the same angle as the felling cut
• The felling cut is slightly above level of the directional notch
+ Good for tree types susceptible to splitting
+ Low stump height

Related articles

  • Usage

    Limbing thick branches

    A different work technique is used for limbing thick branches than that used for thin branches. This applies to leaf trees and other trees with thick, extensive branches. The working technique often matches the technique used for crosscutting. In order to avoid splitting and the guide bar pinching, it is important that you use the correct technique and sequence.

  • Usage


    Consider the crosscutting carefully, especially for larger logs. An incorrect work technique can be dangerous and cause the trunk to split or the guide bar to become pinched. First assess the tension in the trunk. Make it a habit to look at how the trunk reacts to being cut. You may have misjudged the tension.

  • Usage

    Crosscutting - Compressive stress from the bottom

    Crosscutting trees which have compressive stress from the bottom should be done by following this technique.