Boat Trailer Standard Roller Bunk - 4' Long- 10 Sets of 2 Rollers - by Dutton-Lainson

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• Width of Dutton Lainson Roller Bunk Rollers
  I spoke with the Dutton-Lainson Engineering department, and the rollers are 5 inches wide, outside to outside on the double rollers like the # DL21754. I attached a picture of the dimensions of the triple rollers too which is oddly narrower.
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• Is the Boat Trailer Standard Roller Bunks # DL21754 Sold Individually or in Pairs
  The Boat Trailer Standard Roller Bunks # DL21754 that you referenced are sold in pairs. I attached a review video for this product for you to check out for more info and to see that it comes with two.
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• Can Dutton-Lainson # DL21754 Roller Bunks Be Used Without Bunk Boards
  In order to achieve their 2500 lb weight capacity, the Dutton-Lainson # DL21754 roller bunks need to be installed to the narrow edge of a 2 x 4 piece of lumber. If the roller assemblies aren't mounted to boards, the weight capacity would be unknown. Granted, a PWC isn't likely to weigh more than 1000 lbs, probably less but because the rollers weren't tested without bunk boards it would be impossible to say how much their capacity would be reduced. I'd recommend simply replacing the bunk...
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• How Wide is Channel of Boat Trailer Standard Roller Bunk # DL21754 that Installs on Board
  The roller bunks part # DL21754 are designed to fit on the end of a 2x4 board so the width of the channel is 1-1/2 inches.
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• Could Boat Trailer Standard Roller Bunk # DL21754 Fit on 7 Foot Long Bunk Board
  If your bunks were 7 feet long you could still use a set of the Boat Trailer Standard Roller Bunk # dl21754 that you referenced butyou'd most likely want to cut off one of the rollers on one of the sets to allow it to fit properly. These are each 4 feet long so cutting off just one of the rollers would work well.
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• Can Dutton-Lainson Roller Bunks be Installed on Top of Carpeted Wooden Bunks
  You can install the 4' Long Boat Trailer Standard Roller Bunks # DL21754 directly on top of your carpeted wooden bunks (without removing the carpet first). These have a weight capacity of 2,500 lbs per set so 4 roller bunks would be very sufficient for your 2,300 lb boat. Please note that this will raise the ride height of your boat so if that is going to be an issue you can just remove your wooden bunks and mount these roller bunks to the same mounting brackets.
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• Can the Boat Trailer Standard Roller Bunks Be Cut Down
  Yes, you should be able to cut the Boat Trailer Standard Roller Bunk part # DL21754 down to three feet long to work on your bunk boards no problem. They do not offer any roller bunks three foot long so the above will be your best option.
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• Can Additional Mounting Holes be Drilled in Boat Trailer Standard Roller Bunk # DL21754
  As long as the additional holes you drill in the Boat Trailer Standard Roller Bunk # DL21754 are on the sides of that cradle the piece of wood like you mentioned you'd be totally fine.
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• Will Roller Bunks Help Protect Hull on Waverunner
  Roller bunks, like the part # DL21754 that you referenced are a great way to help keep your hull in great shape and for easy loading and unloading of your watercraft. These will install directly to vertically mounted 2" x 4" bunk boards, mounting brackets, or optional roller bunk brackets.
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• Can Dutton-Lainson 4 Foot Roller Bunks be Added to Vertical Metal Bunks
  Ok, I'll go ahead and take these questions one by one regarding the Boat Trailer Standard Roller Bunk - 4' Long- 10 Sets of 2 Rollers # DL21754. 1) Since you have shallow launch areas, adding about 3 inches of height could make it a bit more difficult to launch, so (if possible) it would likely be best to lower your current bunk brackets, if that is how they are attached. 2) You can mount the # DL21754 to your metal bunks since they are vertical. It would be the same practical application...
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• Weight Capacity of Ribbed Rocker Roller from Dutton-Lainson
  I spoke with the manufacturer and there is not a specific weight rating for the individual rollers. It would depend how they are mounted and how the load is dispersed. If you set them up in a bunk fashion, you would probably have about the same weight rating as the Dutton-Lainson Roller bunks like part # DL21754. There is no guarantee they will have the same weight rating as it sounds like you will be building them differently, so only use the bunk ratings as an approximation.
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• Recommendations for Bunk Rollers for Jet-Ski Trailer
  Bunk rollers like the # DL21754 you mentioned would be an excellent choice for PWC's that rest on the edges of the bunks, as most of them do. At 4 foot long, they'd probably offer plenty of support, but I'd recommend getting a set that's close in length to your existing bunk boards. A 5 foot long set is also available as part # DL21755. The rollers would simply mount right over the edge of your existing bunk boards, but you'll probably need to remove the carpet from them first. The rollers...
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• Solution For Allowing Boat Trailer to Winch In Easier
  The simplest solution may be to install roller bunks on the trailer to help you winch the boat in easier instead of using an electric winch for such a small boat. For a 4 foot long roller bunk we have the part # DL21754 which would be a great option. If you were to use the winch part # DL25200 it would mount to the same mount that your trailer has for it's current winch.
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• Replacement Roller Recommendation for Roller Bunk DL21754
  For the Dutton Lainson Roller bunks part # DL21754 we have replacement rollers. For that you would want the part # DL203228. I attached a review video for this roller for you to check out as well.
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• Recommended Roller Bunks for 600 lbs. Boat
  The Dutton-Lainson Boat Trailer Standard Roller Bunk # DL21754 has a combined weight capacity of 2500 lbs. for both bunk rollers. They can be mounted right on top of wooden bunks. Also, if you 'd like to remove the wooden bunks that are likely on your current trailer you will need the brackets # DL21762. You will need 4 brackets to mount the two roller bunks. I've attached the review video of the roller bunks for you to look at.
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• How Many Roller Bunks Needed for a Boat Trailer
  If I am understanding you correctly it sounds like you are saying you have 2 12-foot bunks and 2 6-foot bunks. For the 12 foot bunks you would want to get 3 sets of 4 foot long bunks. So that would be 3 of the Dutton Lainson Bunks part # DL21754. For the 5 foot long bunk I would recommend you go with the bunk part # DL21755 that you referenced.
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• Availability of Replacement Rollers for Dutton-Lainson Roller Bunk Part # DL21754
  Replacement rollers for the Dutton-Lainson Standard Roller Bunks you mentioned, part # DL21754 are available. The replacement roller is part # DL203228. You can see current pricing information by using the provided link that will take you to the product description page. The rollers are held in place by a bolt that runs through the rollers, so replacement would be a simple process.
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• Can the Dutton-Lainson Bunk Board Bracket DL21762 Rotate to Match Hull Angle
  I apologize for all of the confusion. I can tell you with absolute certainty that the Dutton-Lainson Roller Bunk Bracket, # DL21762, will pivot to allow the roller bunk to conform to the angle of the boat or watersport vehicle's hull. The hook piece at the top of the bracket will pivot at the rivet that holds the hook to the mounting bracket. The hook is not easy to rotate because it is designed to have enough tension to hold itself in place once you set it to your desired angle, but a...
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• Which Boat Trailer Standard Roller Bunks Are Recommended for 6' Long Bunk Boards
  There aren't really any hard and fast rules for the Boat Trailer Standard Roller Bunks. That said, for a six foot long bunk board I recommend using a five foot long roller, part # DL21755. If you wanted to use the slightly shorter four foot long roller, part # DL21754, that could be done as well but you would only need one set. The entire length of the bunk board does not need to be covered with rollers for them to be effective and do their job, just the majority.
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• Should Nuts and Bolts or Screws Be Used to Mount Dutton-Lainson 4-Foot Roller Bunk
  The Dutton-Lainson 4-Foot Roller Bunks, part # DL21754, can be mounted directly to the 2 x 4 bunk boards on your trailer using hardware of your choosing. My contact at Dutton-Lainson advised that the choice of nuts and bolts versus screws is not critical so long as the rollers are firmly secured. I took a few measurements of this part for your reference and to help you select hardware. These measurements are shown on the attached photo. The interior channel for mounting the roller bunks...
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• Available Lengths of Boat Trailer Roller Bunks
  The only roller bunks we carry, see link, come in 4 and 5 foot lengths. They can be cut to the lengths needed though. So for example if you needed a 9 foot section you could get 2 of the 5 foot models and cut off 12 inches of one to get 9 feet. For a 6 foot section you could buy three 4-foot sections # DL21754 and cut one in half so you would end up with 6 feet on each side.
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• Availability of 10 Foot Long Boat Trailer Roller Bunks
  Dutton-Lainson doesn't manufacture a 9 foot long roller bunk, however you could use two 5 foot roller bunks per each side part # DL21755, for a total of four. The small bit of extra length won't hurt anything. Each 5 foot section has a 3000 lb capacity. The rollers of the 4 foot roller bunk # D21754 are about 9-1/2 inches apart. If you used two of them and spaced the two units about 9-1/2 inches apart to keep a consistent distance between rollers, you'd get good coverage on a 9 foot...
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• Additional Height of Boat Trailer Standard Roller Bunk # DL21754 When Mounted on Bunk Boards
  The Boat Trailer Standard Roller Bunk # DL21754 is going to add 3" of height to the 2'X8" vertical bunks that you have. We do have the Boat Trailer Roller Bunk Bracket # DL21762 that can be used if you feel that the rollers and bunks would raise the boat higher than you would like.
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• How to Install the Boat Trailer Roller Bunk Bracket # DL21762
  The Boat Trailer Roller Bunk Bracket # DL21762 will secure to the Roller Bunk by hooking around the bolt underneath the rollers. The slot in the bracket will be bolted to your trailer or your existing wooden bunks. The slot in the bracket allows it to be adjusted higher and lower on the bolts. These brackets are designed to work with the 4 foot # DL21754 and 5 foot # DL21755 Roller Bunks by Dutton Lainson.
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