Trailer Weight vs. Tongue Weight—which is the critical factor when selecting a trailer jack?
The key figure is loaded tongue weight.
Trailer weight is the total loaded weight of the trailer, while tongue weight is the vertical load applied at the coupler.
The jack’s rated lifting capacity should therefore meet or exceed the maximum loaded tongue weight—not the total trailer weight.
Lifting Capacity — the maximum load when the jack can raise
Static Load Capacity — the load it can support while stationary
Before selecting a trailer jack






