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Filter calculator, guide, and reference pages about trailer tongue jack capacity, tongue-weight sizing, and 5000 / 8000 / 12000 lb class ladders.

Tools

Interactive tongue × 1.25 estimator.

Guides

Guide covering the 1.25× rule, weld-on safety, and NO_MATCH.

Reference

Comparison of trailer jack ceilings.

Reference

Example tongue-weight checks and class results.

Guides

Full listing of TrailerJack pages.

Tools

Homepage calculator for quick trailer jack sizing.