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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
The product arrived on time and well packaged. I mounted the bunks and todate they are working well! I would definitely buy these again if needed in the future.
Sturdy, easy installation, just what we needed.
On time delivery. Easy installation. Thx
Delivery was fast and on time. The product is well made. Installation instructions were clear and precise. I installed the guides the morning after I received them and the entire process took less than an hour. The most amount of time was spent on deciding where to place them and making adjustments to my trailer which was, unbeknownst to me, uneven and tilted slightly to one side. Once that was corrected, the guide-ons installed properly. I'm taking my boat out tomorrow to test them out but I'm certain they will work fine.
Customer service was topnotch but there was some misinformation and some lack of information. The extruded legs don't need to be painted due to a galvanized coating applied at the factory. Also the self tapping wood screws shouldn't be screwed in without first drilling a pilot hole for two reasons. The large diameter screw may split the wood bunk and without a pilot hole the screw would be difficult to physically screw in. So the installation instructions should suggest drilling a pilot hole first and should specify what size drill bit should be used. Having said that, I will say that I am very happy with the quality, price, and design of these guide-ons. I changed up my carpet covered main bunks to plastic composite bunks because I use my aluminum boat in salt water and the carpet holds salt water against the bottom of the boat which over time will corrode and cause pinholes in the hull. The plastic bunk solves that problem but is very slippery so I needed some side support to resist the boat potentially sliding off the trailer. Also with the added benefit when loading to help the main guide-ons to keep the boat centered.
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.
I am very pleased with your products. You might be surprised how I used them. Glad to write a review.
Nice addition to my trailer. The video of installation was helpful as well!
Had to make spacer for inside of tube on bolt holding board to prevent collapsing tube when tightening thru bolt. Spacer should be supplied with this kit considering the price of these side bunks.
The packaging, design, and ease of assembly are positive characteristics of this product. I had read several reviews on the galvanized treatment of the bars, and by appearances I agree that it is lacking. The seams of the inside of the hollow tube seem be lightly rusting. To ensure a longer service life I sprayed 3 coats of clear primer / paint onto both bars.
I installed the bunks and so far everything appears to be going Well. They are perfect for what I needed. When I water test my boat trailer I hope to float load the boat because the bunks will align
My product came in excellent time, and was in perfect shape ....easy instructions, and easy to install.
With the very large selection of items from Etrailer, and the high quality, I won't go anywhere else. Thanx Etrailer
These guides look good an fit my Jon boat perfectly. I have a Lowe Big Jon and its hard to launch and take out of lakes alone. I haven't tried them yet so ill have to see how they do . I am definitely glad I got them.
Here is a finished photo of a duel set of short bunk guides for my 1974 Starcraft Capri 15'. Perfect fit and compatability! Thanx again for your prompt and quality services!
fit very well made well too and very fast shipping
good job!!
Good solid product and easy to install. My only suggestion would be for them to predrill the holes for mounting the bunks to the rails.
Just received these trailer guide-ons and my only regret that I have is that I should have ordered them months if not years ago. I was thinking they would be some lightweight square tubing, not so. These things are heavy duty. I figured they wouldn’t be long enough as my trailer isn’t very wide. To my surprise more adjustment than I was figuring. Even slight wind and waves I’ve been struggling to get my boat, Lund SSV 14 on the trailer. I’d have to wade in the water sometimes at the very end of my trailer to get the boat lined up in order to get it on the trailer. Game changer for sure.
Thanks works great
These bunks are the exact same as the ones which came on the original trailer which lasted 13 years. Nice and sturdy with a good wrapping of black outdoor carpet. I should be good for another 13 years!
Order process was good. Etrailer sends good communications throughout the process.Product was packaged well and installed easily.
Only issue I had was the pkg showed up a day later than when they said I would.
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,
Kate F.
8/4/2025
Purchased these bunk guides in July '14 . Took two days to receive them . Received updated tracking information from the time of order until the box hit my doorstop. Installation was a snap . Came with directions but really did not even need to look at them . Took less than an hour to install both sides . Painted them after installation and they match the trailer perfectly . I have a very heavy 14 1/2 foot fiberglass boat . Once it is on the trailer there is no adjusting it . It also catches a lot of wind and can be difficult to load at times. Loaded the boat today for the first time with the guides . Should have bought them a long time ago . The guides center the boat perfectly . Hook the winch strap to the boat and crank away . The boat centers itself right on the rollers . Would be especially helpful for those folks that load and unload their boat alone . Great Product Great Service
Installation was easy. Waiting to see if they help center the boat while loading.
Easy to install although my particular trailer (Phoenix) took a little more modification to get the right fit. The guides perform as advertised and help me get the boat on the trailer correctly the first time.
Todd
9/2/2025
Working very well! I wouldnt be able to load my boat by myself without this trailer guide!
My order came quick. Have not installed the guides-ons yet.
Best addition to my boat I've made. These let me get my flat-bottomed SturDee 15 foot boat aligned on the trailer with no trouble at all. Since it's not a "V Hull" with a roller in the middle of the trailer, getting it lined up was a hassle before adding these guides-ons.
I highly recommend them for any flat-bottomed boat.
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.
I added the bunk-style guide-ons to my trailer the day after they arrived. It was an easy installation. The important thing was that when etrailer states a delivery date, the product arrives on that date and with all the pieces. I have limited time to work on my trailer so it's worth the slightly higher cost. In addition, etrailer customer support is always available to help whenever I call. Not so with other online sources. As we all are buying more and more products online, not only is the suppliers product quality important but so is having access to the installation videos and very knowledgeable support team for answering questions and providing guidance.
Easy to install and look great! Worked perfectly for my boat and trailer.
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!
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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.