Chocka: RV Leveling Checklist

Which wheel goes on the blocks, and how high?

Lay your phone on the floor and Chocka answers for every wheel: front left 3.5 in on step 4, front right 2.25 in on step 2, rear left 1.25 in on step 1, rear right stays. It works from your own wheelbase and track and the steps of your own leveling blocks or ramps, and tells you how level the rig will sit once it’s on them. The bubble sits in the middle of your rig, so you can see which way it leans.

TRAVEL TRAILERS TOO

Two wheels and a tongue jack: which side goes up, and how far to wind the tongue jack up or down, worked out together so the second adjustment doesn’t undo the first. Single or tandem axle.

HOLD IT, THEN WALK OUTSIDE

Freeze the reading and take it to the wheel. A firm tap tells you when the rig comes level.

CALIBRATE IN 20 SECONDS

Two readings, one each way around, on any flat surface. Every phone’s tilt sensor is a little off; this cancels it out.

LEAVE NOTHING AT THE SITE

Leaving, arriving and packing lists that know what you drive. A motorhome gets the entry step, the roof vents, the TV antenna and the shore power cord. A travel trailer gets the coupler, the safety chains and breakaway cable, the trailer lights, the tongue jack and the stabilizer jacks. Safety items are flagged, and if one is still open when everything else is ticked, Chocka names it.

YOUR RIG, REMEMBERED

Your tire pressures show inside the tire item. Add, rename, reorder and flag items. New trip unticks the list and keeps your changes. Several vehicles, each with its own lists.

PAYLOAD CHECK

GVWR and weighed weight, plus people, water, propane and luggage: how much you can still load, or how far over you are.

Inches or centimeters, psi or bar. English, German, Dutch and French.

Works offline. No account. Your lists stay on your phone.