GUIDE SUPPLEMENTAL SUPPORT

Tree Care Industry Assoc.

A300 Part 3 Supplemental Support Systems standards provide four basic cabling methods: Direct: Direct cabling consists of a single cable between two tree parts, e.g., two limbs, two stems, or a trunk and a limb. Triangular: Triangular cabling consists of connecting tree parts in combination of threes. This method should be preferred, when maximum support is required. Box: Box cabling consists of connecting four or more tree parts in a closed series. This system should be used only when minimal direct support is needed. Hub and Spoke: Hub and Spoke cabling consists of a center attachment (hub) with spans (spokes) of cable radiating to three or more leaders. Hub and Spoke cabling should only be used when other installation techniques cannot be installed.

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