Control the load
Rigging
Blocks, Port-a-Wrap setups, friction control and load management for controlled removals.
Video demonstrations
Connection required · Opens in a player
Port-a-Wrap friction control
TreeStuff
See barrel wraps, tailing position and progressive lowering demonstrated on a friction brake.
GRCS setup and operation
TreeStuff
A field demonstration of mounting, fairlead routing, lifting and controlled lowering with a GRCS.
Interactive & 3D resources
External resources · Connection required
GRCS How-To Library
Good Rigging Control System
Setup and operating guidance for lifting, lowering and fairlead routing.
Climbing & Rigging Archive
International Society of Arboriculture
Field demonstrations covering lines, knots, lowering systems and rigging techniques.
Charts & deep reference
Green log weight chart & calculator
Green wood weight by species plus a piece-weight calculator, so the rigging is sized for the load instead of a guess.
Rigging equipment profiles & operation
GRCS, Port-a-Wrap, blocks and pulleys, low-friction rings, whoopie and dead-eye slings — what each one does and how it is run safely.
Blocks & slings
Rigging Block Setup
Installing a rated rigging block on a spar or limb so the rigging line runs clean and forces stay predictable.
6 steps · 3 cautions
Friction devices
Port-a-Wrap Setup
Mounting and reeving a friction lowering device at the base of the tree, and how wrap count controls the load.
6 steps · 4 cautions
Friction Control & Load Management
How wraps, line angles and letting the piece run manage peak force on the rigging and the tree.
6 steps · 3 cautions
Techniques
Negative & Balanced Rigging
Rigging below the attachment point (negative) versus rigging at or above the piece's balance point.
6 steps · 3 cautions
Speedline Basics
A tensioned line between an anchor in the tree and a ground anchor, used to carry brush over obstacles.
5 steps · 3 cautions