TREE SAVER SIZING — ANCHOR WITHOUT KILLING THE TREE
Tree Saver Strap Calculator — Get the Right Width and WLL for Your Winch
A tree saver that’s too narrow damages bark and can be cited by land managers. One that’s too narrow for the load can also fail.
Enter your winch line pull rating and tree diameter. The calculator returns the minimum tree saver strap width and WLL required for your recovery.
No regulation sets a minimum tree saver width. Federal land managers prohibit damaging trees (36 CFR §261.9, 43 CFR §8341.1) but prescribe no dimension. A wider strap spreads the load and protects the bark; 3 inches is the common manufacturer standard.
Winch users, trail riders, and off-road recovery operators using trees as anchor points.
- TREAD Lightly guidance (voluntary, not law)
- Manufacturer WLL ratings (no binding standard exists)
- Land management agency requirements
CALCULATOR
Disclaimer: This tool is provided for educational and informational purposes only and does not constitute legal, safety, or professional advice. Sunferno Automotive Accessories cannot verify how products are installed, used, or attached in your specific vehicle or situation — proper installation, use, and securement are solely the responsibility of the user. Laws and regulations vary by jurisdiction and change over time; always confirm current requirements with your local authorities or a qualified professional. Sunferno products must be used strictly in accordance with manufacturer instructions and applicable regulations.
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