How to measure a trailer wheel (Rim) bolt pattern
How To Measure Trailer Wheel Bolt Pattern For Proper Fit
If you would like help with this, contact our customer service team and we can walk you through this process.
Trailer wheel bolt pattern measurement can be confusing if you don't follow these simple rules about how to measure for different size wheels. Once you get the hang of this procedure you will never select the wrong wheel again. We also offer a free template that you can print and place directly on your wheel.
Measuring 4-Bolt Trailer Rim
Measure a four bolt wheel from the center of a bolt hole, skip one bolt hole and then the center of the next hole. Basically your ruler goes across the center of the wheel.
How to Measure a 5-Lug Trailer Wheel
Measure a five lug wheel from the edge of one bolt hole, skip one bolt hole and then the center of the next hole. In this case the ruler is not across the center of the wheel and you measure from the edge of one to the center of the other.
You can also determine your 5-lug pattern by measuring the distance between the center of one bolt hole, to the center of the bolt hole next to it.
- 2 5/8" - your bolt pattern is 5 on 4.5"
- 2 3/4" - your bolt pattern is 5 on 4.75"
- 3" - your bolt pattern is 5 on 5"
- 3 1/4" - your bolt pattern is 5 on 5.5"
6-Bolt Trailer Wheels
Measure a six bolt wheel from the center of the bolt hole, skip 2 bolt holes and then the center of the next hole. Your ruler goes across the center of the wheel.
8-Bolt Trailer Rim
Measure the 8-lug from the CENTER of one bolt hole -- to the CENTER of the lug hole ACROSS from it. Measure an eight bolt wheel from the center of a bolt hole, skip 3 bolt holes and then the center of the next hole. Your ruler goes across the center of the wheel.
