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Keep your small boat centered during the loading process, despite wind and waves, with these bunk-board-style guide-ons. Corrosion-resistant guides are covered with marine-grade carpet and fit trailer frames up to 3" wide x 4-1/4" tall.
Features:
Specs:
Adjustable boat guides can be fine-tuned to work with your boat and your trailer. The pre-galvanized steel support posts mount horizontally on top of or below your trailer's frame rail. Just slide the posts into the boat guide supports and secure the posts so that the distance between the bunks correctly matches the width of your boat. The bunk boards then tilt to conform to the boat's hull. Guides will help to center your boat during loading and to hold the boat during transport.
Pre-Galvanized Steel
Pre-galvanized steel parts are stamped from a sheet of steel after it has already been galvanized. The edges of the pre-galvanized parts often lose their zinc coating during the stamping process. Because of the thinness of the coating less than 1 mil and the fact that the edges remain exposed, pre-galvanized parts can begin to oxidize and rust quickly, so its recommended that they be primed and painted.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews

Robert
8/24/2023
After a year, Ive made a couple of adjustments to these- both in height and angle. They are working very well and allow me to highhandedly trailer my boat. The carpet is still unfaded and secure.

Todd
9/2/2025
Working very well! I wouldnt be able to load my boat by myself without this trailer guide!

Don
8/3/2025
The product is fine but I will be changing to a pole style guide on as then I can load in deeper water and the stern wont be able to float out of alignment,


Douglas L.
3/15/2023
This product is great! Works well and is holding up great. Looks exactly like it did a year ago when I installed them.

Louis
6/7/2022
Everything is still working great. I have now loaded my boat back onto my trailer dozens of times , all without any problems. Well worth the money spent.

Robert M.
7/6/2015
Looks good and works perfect.

Bill H.
8/13/2015
Thee product is working just fine,no issues with it at all.I put the boat on and off easy as could be and it centers at the same spot every time.Still very happy after a year of salt water use.
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Info for this part was:
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Gwendolyn Y.
5/4/2026
That's a sweet boat you got, Samuel! Now you're ready to get on the water and enjoy the sun!