Real skills, taught by working tree people. Knots 101 is on every tier — Sapling included. Stump grinders, wood chippers, SRT and more open with Trunk. New courses dropping monthly. Built for everyone in the trade — climbers, groundies, bosses, contractors and operators.
Members vote what comes after.
Pre-starts, teeth selection, depth control, finishing technique. Operating self-propelled, tow-behind and tracked grinders without leaving moonscape behind.
Feed-roller mechanics, jam clearance, blade care, chip quality. Safe feeding, hand signals, exit lanes. Disc and drum chippers — what kills people and how to not be that bloke.
File angles, depth gauges, fuel mixes, bar maintenance. A sharp saw beats a strong arm.
Single rope technique from the ground up. Hitch climbers, hipthrust ascend, redirects, transitions. No more flailing on the rope.
Pickoff rescue, lowering an unconscious climber, footlock backup. The drills you hope you never need.
Members vote next
Rigging fundamentals? Aerial rescue? Spider lift basics? Trunk & Canopy members vote on what drops after wood chippers.
Plus all 5 open chat rooms. First 2 months on us · then $19/month · cancel anytime.