ANSI Z133 Section 5.7 Certified & 100% Offline

The Ultimate 3D Log Weight & Crane Safety Calculator

Instantly compute green log weights, volume, and crane safe working load (SWL) limits across 4 formulas. Inspect timber geometry in real-time 3D and export branded PDF lift reports for tree service operations.

4 Log Math Formulas
3D Real-Time Studio
80% SWL Crane Limit Gauge
Green Log Weight Chart 3D iPhone App Interface
PROFESSIONAL CAPABILITIES

Built for Arborists, Tree Service Crews & Crane Operators

Engineered for accuracy in the field. Avoid crane overload accidents and ensure full ANSI Z133 compliance on every job site.

4 Log Shape Formulas

Simultaneously view non-scrollable weight results across Cylinder, Tapered Frustum, Smalian's Rule, and Huber's Formula in a side-by-side 2x2 grid.

Interactive 3D Studio

Visualizer matches the exact viewport, lighting, and grass ground plane format as FenceCalculator. Inspect cut taper and log geometry directly on your device.

Crane SWL Safety Gauge

Configure crane chart capacity and rigging hardware weight. Real-time visual progress bar alerts when total weight exceeds 80% Safe Working Load limit.

Daily Lift Plans

Organize log cuts by calendar date. Track daily accumulated tonnage, total cut count, and view date-filtered lift logs instantly.

PDF Lift Reports

Export official ANSI Z133 daily crane lift plans for custom date ranges with total weight summary, cut tables, and signature lines.

SherrillTree PDF Reference

Bundled in-app viewer for SherrillTree's official Green Log Weight Chart. Inspect 1-foot section charts offline without leaving the app.

INTERACTIVE VIEWPORT

FenceCalculator Format 3D Log Studio

Experience real-time 3D rendering directly in your browser. Features soft studio shadows, grass green floor plane, and touch orbit controls.

Interactive 3D Log Viewport Studio FenceCalculator Preset
Drag mouse or swipe to rotate 3D log
LIVE BROWSER TEST

Interactive Log Weight & SWL Calculator

Test the mathematical engine directly in your browser before downloading the native iOS application.

Log & Rigging Dimensions

TAPERED FRUSTUM WEIGHT
0 lbs
Cylinder Weight
0 lbs
Smalian's Weight
0 lbs
Calculated Volume
0 cu ft
Rigging Hardware
150 lbs
SAFE LIFT: Total Load under 80% SWL Limit
ANSI Z133-2017 MANDATE

Safety Standards & Pre-Lift Checklist

ANSI Z133 Section 5.7.7 explicitly mandates that "A green log weight chart shall be available to the crew" when conducting crane tree removals.

  • 1.5x Tree Height Drop Zone Estimator
  • Pre-Lift Safety Checklist (Outriggers, Pads, Radios)
  • Automatic 80% SWL Crane Load Warning
  • Bark allowance & unseasoned green wood adjustments

Zero Guesswork On-Site

Protect your rigging gear, crane boom, and ground crew with verified green wood density calculations before making cut choices.

HELP & CONTACT

Support & Frequently Asked Questions

Have questions about Green Log Weight Chart 3D? We are here to assist.

No! The app is 100% offline capable. All wood species density tables, 3D rendering engines, and PDF generation tools run completely locally on your iPhone or iPad.

Weights are calculated using unseasoned green timber density figures (lbs/cu ft) cross-referenced with 4 standard mathematical volume equations: Cylinder, Tapered Frustum, Smalian's Rule, and Huber's Formula.

For technical queries, feature suggestions, or support, use our 24/7 live chat widget located at the bottom-right corner of this page.

Need direct assistance with your installation or enterprise crew setup?

Start Live Chat Support

Official Privacy Policy

Effective Date: August 8, 2026

1. Overview & Data Privacy Commitment

Green Log Weight Chart 3D is designed with absolute privacy in mind. We believe your operational data, lift logs, and custom calculations belong solely to you. We do not track, collect, or store any personal data on external servers.

2. Information Storage

All crane capacity parameters, rigging hardware weights, unit preferences, and daily lift plans are stored 100% locally on your iOS device using native Apple UserDefaults and local storage APIs. No data is ever transmitted to third-party tracking services or analytics providers.

3. Device Permissions

Green Log Weight Chart 3D does not require location services, camera access, or microphone permissions to function.

4. Contact Us

If you have any questions regarding this Privacy Policy or app usage, please contact our support team via our live chat widget.