How to Choose Correct Height for Post-Style Boat Trailer Guide-Ons
Question:
How do I determine whether I need the 40” or 60” guide on posts for a 16.5 ft. Lund boat on a Lund trailer? I’m unable to test the required post height at a boat ramp right now and I drive a large SUV Toyota Highlander. Ideally, how many inches, minimum, above the gunnel/side of the boat should the guide posts extend ? I know that 60” posts will work fine but maybe extend much higher than needed and look odd. Your guidance will be.
asked by: Kevin M
Expert Reply:
The best way to determine the height needed is to measure from the top of your trailer frame to the top of the sides of your boat. If the 40" Tall Guide-Ons # CE27626 sit right at or slightly above the sides of your boat then the shorter will work for you. Otherwise the 60" Tall Guide-Ons # CE27646 will be the better option.
These posts are made of PVC pipe so in reality you can just get the 60" tall kit and then cut them to the desired height once you get your boat to the water.
Attached is a review video for you to check out.

Products Referenced in This Question
CE Smith Post-Style Guide-Ons for Boat Trailers - 60" Tall - Black - 1 Pair
- Boat Trailer Parts
- Guides
- Post-Style Guide
- 60 Inch Tall
- Galvanized Steel
- PVC
- CE Smith
more information >
Product Page this Question was Asked From
CE Smith Post-Style Guide-Ons for Boat Trailers - 40" Tall - Black - 1 Pair
- Boat Trailer Parts
- Guides
- Post-Style Guide
- 40 Inch Tall
- Galvanized Steel
- PVC
- CE Smith
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: CE Smith Post-Style Guide-Ons for Boat Trailers - 40" Tall - White - 1 Pair
- Shop: CE Smith Post-Style Guide-Ons for Boat Trailers - 40" Tall - Black - 1 Pair
- Shop: CE Smith Post-Style Guide-Ons for Boat Trailers - 60" Tall - Black - 1 Pair
- Shop: CE Smith Extra-Long U-Bolt Kit for Boat Trailer Guide-Ons - Pre-Galvanized Steel - 6" Tall
- Video: CE Smith Post-Style Guide-Ons for Boat Trailers Review
- Shop: CE Smith Post-Style Guide-Ons for Boat Trailers - 60" Tall - White - 1 Pair
- Video: Let’s Check Out the CE Smith Post-Style Guide-Ons for Boat Trailers
- Search Results: boat trailer parts
- Shop: CE Smith Post-Style Guide-Ons with LED Lights for Boat Trailers - 60" Tall - 1 Pair
- Q&A: How to Gauge Height of Guide-Ons for Boat Trailer
- Q&A: Boat Trailer Guide On Recommendation for a Deep V Lund Boat Trailer
- Shop: CE Smith Post-Style Guide-Ons for Boat Trailers - 75" Tall - U-Bolt Hardware - 1 Pair
- Search Results: trailer guide poles
- Search Results: guide poles
- Q&A: Availability of 60" Tall Guide-On Posts For Boat Trailer With 3" x 5" Frame
- Article: Boat Trailer Guides: Which are the Best?
- Video: Breaking Down the CE Smith Post-Style Guide-Ons for Boat Trailers
- Video: CE Smith Post-Style Guide-Ons with LED Lights for Boat Trailers Review
- Video: Review of CE Smith Padded Post Style Guide On Covers - CE27902
- Video: CE Smith Post-Style Guide-Ons for Boat Trailers: The Breakdown
- Q&A: Fit of CE Smith Post Guide-Ons on a 1986 Champion Bass Boat Trailer
- Search Results: race l68110 trailer bearings races seals caps
- Video: 2018 Nissan Pathfinder CIPA Universal Fit Dual-View Towing Mirror: Complete Installation
- Shop: Towing Mirrors
- Shop: Suspension Enhancement
- Q&A: How to Choose Between 40 Inch and 60 Inch Boat Trailer Guide-Ons
- Q&A: Boat Guide-Ons for a Boston Whaler Classic Montauk and Trailrite Boat Trailer
- Q&A: Dimensions of Post of the CE27620
- Search Results: trailer guide ons
- Article: Trailer Tire Sizing