Reference

Bottle jack sizing reference

Worked GVWR examples and class checks for US light-truck through HD bottle jack screens.

Required ≈ GVWR × 0.75. Terrain is not used on this site.

Details

Always support the vehicle with rated jack stands after lifting. Never work under the jack alone.

Tools

8,000 × 0.75 = 6,000 → 6 ton class.

Details

Enter gvwr 8000.

Tools

20,000 × 0.75 = 15,000 → 12 ton class.

Details

Enter gvwr 20000.

Guides

40,000 × 0.75 = 30,000 → 20 ton class.

Details

Clears 26,456; lands in 44,092 / class 20.

Reference

70,000 × 0.75 = 52,500 exceeds the 44,092 lb ceiling.

Details

Do not force a 20 ton class for this load.

Guides

Guides, calculator, and comparisons.