How To Choose Correct Roller Bunks for Boat Trailer with Bottom and Side Bunk Boards
Question:
I have a 18.5foot G3 aluminum boat that is about 1200 lbs. I am wanting to remove some rotting bunk boards and replace with these rollers. There are 4 bottom bunk boards - 2 inner 10 foot boards and 2 outer 5 foot boards that the boat actually sits on. Can you help me determine how many sets of rollers to use, and where to place them? Will one set of rollers where the outer 5foot boards be sufficient?
asked by: Ryan D
Expert Reply:
In regards to the Dutton-Lainson Boat Trailer Deluxe Roller Bunks like part # DL21741, I recommend using these to replace the bottom bunk boards which you can see in the attached photo. That said, although there isn't an exact formula on what length roller needed we always recommend that you match their length to the bunk boards you will be replacing it with so two five foot sections per side in your case. The attached photo is likely very similar to your setup so this is what I recommend mirroring.
![Conner L](https://images.etrailer.com/static/images/catg/people/1234_tn.jpg)
Product Page this Question was Asked From
Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers
- Boat Trailer Parts
- Bunks
- Rollers
- Roller Bunk
- Black Rubber
- Dutton-Lainson
more information >
Continue Researching
- Q&A: Replacement Oil Cap for Dexter Hub # 21-35
- Q&A: Window Cover Recommendation for Class C Motorhome Built on F-550
- Q&A: Will the Pintle Hook # 63015 Attach to the Super Titan Pintle Hook Plate # RP38186
- Q&A: What Size Hardware Should Be Used With the Super Titan Forged Pintle Hook Plate
- Q&A: How to Determine if Trailer Axle is Not Aligned and How to Measure to Replace Trailer Axle
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: Recommended Replacement Grease Seal and Braking Assemblies for an AL-KO 7210
- Q&A: Size of U-Bolt Slots in Dutton-Lainson # DL21742 Roller Bunk Bracket for Roller Bunks DL21740/41
- Article: Trailer Lighting Requirements
- Article: Boat Trailer Showdown: Bunks vs. Rollers
- Article: Trailer Wiring Diagrams
- Article: Best Ladder Racks
- Article: How to Bleed Your Trailer Surge Brakes
- Article: Best Boat Trailer Jacks