How to Select a Trailer Hitch
Class and receiver size still matter after you know the tongue number. Match hardware to the rating story on the door sticker.
Watch on YouTubeTrailer Tongue Weight Scale Tips (Canada)
Want a real tongue-weight number instead of a guess? A bathroom scale can get you close on lighter trailers, and a commercial scale is the cleaner answer when the load is heavy or the setup is awkward. This page is practical Canada how-to for measuring tongue weight with a scale. It is not another explain-what-it-is essay. For the definition and why the number matters, open tongue weight explained. Typical loaded tongue weight often lands around ten to fifteen percent of gross trailer weight as a shopper ballpark. That is a starting habit, not a legal cutoff we invent here.
Built for Canadian shoppers who want to measure before they tow. Free shipping on CURT towing gear from Lots of Parts when the SKU is live on this store.
Related reading:
tongue weight explained,
when do I need weight distribution, and
hitch versus vehicle tow rating.
Prefer the full index?
Open the towing guides hub.
Watch these CURT videos first
All four videos are from the official CURT YouTube channel (@curtmfg). Use them for hitch class, install habits, wiring, and ball-mount height so your measured tongue weight sits on hardware that actually matches the plan.
If an embed does not load, use the YouTube link under the card.
Trailer Hitch Installation Techniques
A solid hitch install keeps the measurement honest. Loose hardware can fake a number that disappears on the first frost heave.
Watch on YouTubeHow to Connect a Trailer Wiring Harness
Lights and harness habits belong on the same checklist as tongue weight before a first tow day in Canada.
Watch on YouTubeHow to Choose a Ball Mount and Trailer Ball
Ball-mount height changes how the trailer sits and can shift how weight feels on the coupler. Measure with the setup you will actually tow.
Watch on YouTubeBathroom scale method for lighter trailers
A household bathroom scale works when the tongue weight stays inside what that scale can read without bottoming out. Many home scales top out around three hundred to four hundred pounds. If you expect more than that, skip straight to a commercial scale.
Park the trailer on level ground with the coupler at the height you will tow. Use the tongue jack to take weight off the coupler, then place a sturdy block or short pipe on the scale and lower the coupler or jack foot onto that block so the scale reads the vertical load. Keep the trailer level front to back the way it sits when hitched. A nose-high or nose-low attitude changes the number.
Read the scale once things settle. That reading is your tongue weight for that load and that attitude. Shift cargo forward or aft, then measure again. The goal is a stable number near your shopper ballpark of about ten to fifteen percent of the loaded trailer weight, while still under the tongue rating on the hitch, ball mount, and vehicle door sticker.
Step 1Level the trailer
Same attitude you will tow, on firm level ground.
Step 2Support the scale
Block or pipe on the scale, coupler or jack foot centered on it.
Step 3Read and adjust
Move cargo, recheck, and stay under every rating in the chain.
Step 4Write it down
Note the load so the next trip starts from a known number.
When a commercial scale is the better tool
Use a shop scale, gravel-yard scale, or public truck scale when tongue weight may exceed a bathroom scale, when the trailer is big enough that home geometry gets sketchy, or when you want a second opinion before a long Canada highway run. Commercial scales remove the worry about maxing out a bathroom spring pack.
A common commercial approach is to weigh the tow vehicle alone, then weigh it again with the trailer coupled and the tongue jack up, then compare against a full rig weight plan your shop trusts. Follow the scale operator rules. Do not invent axle formulas that fight the posted procedure at that yard.
If the measured tongue weight sits high for the vehicle or hitch rating, shift cargo aft within safe axle limits, shorten the load, or step into weight distribution when that is the right hardware conversation. Open when do I need weight distribution and the weight distribution hitch guide before you buy spring bars on vibes alone.
Home scale versus shop scale
| Situation | What we tell shoppers |
|---|---|
| Light utility or small camper | Bathroom scale is often enough when the expected tongue stays inside the scale range and the trailer is level. |
| Heavier travel trailer | Commercial scale. Home scales lie or bottom out when the tongue is big. |
| First time with a new load | Measure once at home if light, then confirm on a commercial scale before a long trip. |
| After major cargo changes | Measure again. A weekend of gear can move the number more than people expect. |
| Jack and coupler habits | Keep the jack honest while you measure. See tongue jack tips. |
| Ratings still win | Vehicle sticker, hitch, ball mount, and coupler ratings all cap the story. See hitch versus vehicle tow rating. |
Ten to fifteen percent without inventing cutoffs
Shoppers and many manufacturer primers talk about tongue weight near ten to fifteen percent of gross trailer weight for a conventional bumper-pull trailer. Use that as a ballpark while you measure. Do not treat it as a law we wrote for Canada. Always stay inside the lowest rating in the chain: vehicle, hitch, ball mount, ball, and coupler.
Too little tongue weight can make a trailer feel nervous. Too much can unload the front axle and hurt steering and braking feel. Measurement beats folklore. Pair the number with a sober read of tongue weight explained and a dry run using the first tow day checklist.
CURT hardware that shows up after you know the number
We do not invent a CURT tongue-weight scale SKU on this shelf. After you measure, the hardware conversation is hitch class, ball mount, pin or lock, and weight distribution when the load calls for it. These live CURT cards are the ones shoppers open next.
Weight distributionCURT 17050Round-bar weight distribution kit on the live shelf. Confirm tongue rating on the card.
Weight distributionCURT 17051Higher-rated round-bar weight distribution kit when the measured tongue needs it.
Weight distributionCURT 17052Another live round-bar WD path. Read the card ratings before you buy.
Ball mountCURT 45230Two inch ball mount for Class 3 tubes after the tongue number is known.
PinCURT 21400Half inch hitch pin with clip for the shank you measured with.
LockCURT 23519Hitch lock when the rig sits with the mount in the tube.
Related guides worth opening next
Tongue weight explainedWhat the number means before you measure it.
Weight distribution whenWhen spring bars belong after a high tongue reading.
Hitch versus vehicle ratingWhy the door sticker still wins.
First tow checklistLights, chains, coupler, and tire pressure habits.
Parts-counter summary: measure tongue weight on level ground with the attitude you will tow, use a bathroom scale only when the number fits that scale, step up to a commercial scale for heavier trailers, keep the ten to fifteen percent idea as a ballpark, and never outvote the lowest rating in the chain. Free shipping on live CURT towing gear from Lots of Parts across Canada when the SKU shows available on this store.
