Need opinion on trailer bunks

gnrboyd

Petty Officer 2nd Class
Joined
Oct 18, 2007
Messages
157
I just recently purchased a 1992 Sea Nymph FM160 with a 50 Evinrude. Although I have not had it off the trailer yet (and probably won't before winter) I can tell that the bunks are probably on their last leg and need to be replaced.

The bunks are about 7 feet or a little longer. I've been reading some posts about those screw on plastic strips that help make loading the boat easier. I know my boat isn't all that heavy but I will be using the boat by myself a fair amount and would like to be able to just push the boat off the trailer with a rope attached in these instances and thought the glides would make it easier.

I then found some plastic/poly 2x4 themselves which would not require any wood at all. They would be about 88.00 for 2-8 footers and I may need to cut them down a little. I have not done the math yet, but if you figure a couple of marine grade 2 x 4s, new carpet, glue, and the plastic slides it might be almost as cheap (and easy) to use the plastic 2 x 4s to begin with.
Here is a link to what I've been looking at. http://www.ultimatebunkboards.com/

I guess I have 3 options.
1. Redo with new wood and carpet.
2. Redo with new wood, new carpet, and plastic slides.
3. Redo with plastic 2 x 4s as shown the site listed above or similar.


Other questions:
I've seen lumber yards start to carry composite lumber for decks. I wonder if this material would be less expensive and do a similar job as the plastic marine bunks?

I've read some places that the slides should not be used on riveted boats. I assume this is primarily because of the rivets catching on the countersunk screw locations. ?? I emailed the ultimate bunk boards place and they said riveted boats are fine. (Of course....they are trying to make a sale though.)

If I use the plastic 2x4s, that will lower my boat on the trailer slightly. (by the carpet thickness) I already have some concerns about my trailer set up. I have 2 8" keel rollers. (standard black flat and raised at the ends....not V roller) The back one looks brand new and the front one is in bad shape. The keel is resting on the front roller but I'm uncertain how much weight is on it. My assumption is that it is too much because it is damaged and flattened out. I plan to replace them both with the yellow poly V-type but think that will raise the front keel slightly since those rollers are a little thicker. My trailer does not have adjustable bunks or roller brackets so I don't know if lowering the bunks a 1/4" and raising the keel about a 1/4" or 1/2" about the same is enough to worry about but in theory would put more weight on the front roller and the bunks may not fully rest against the boat. Again, I've never had the boat off the trailer yet so I really don't know how it will even load as is. I guess I should replace the rollers first and see what it looks like before I tough the bunks.??

I'm tight but yet I will spend a little extra if something warrants the extra cost. I'd like to hear your thoughts, opinions, suggestions, comments, experiences, etc.

Sorry to be so windy.

Thanks
 

Scaaty

Vice Admiral
Joined
May 31, 2004
Messages
5,180
Re: Need opinion on trailer bunks

Wood (treated 2x4's) and indoor/outdoor carpet from the Home Depot has worked for years...have ya priced that new fancy plastic stuff?:eek:
 

gnrboyd

Petty Officer 2nd Class
Joined
Oct 18, 2007
Messages
157
Re: Need opinion on trailer bunks

Yes, I have priced them. They are 88.00 for 2 8 foot sections. I would estimate that is about twice (or slightly more) than what treated 2x4s, carpet, and glue would cost.

Anyway, assuming they will last twice as long (or longer) as a standard carpeted bunk and provide the user with additional function ....in my book that creates VALUE even though they cost more up front. That is my theory but I'd still like other opinions.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Need opinion on trailer bunks

will you keep the boat long enough to get the value. i dislike the plastic things.. just tie you bow line to trailer, and back in deep enough to float the boat, then pull up and retrieve the line from the trailer.
 

Mark42

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Joined
Oct 8, 2003
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9,334
Re: Need opinion on trailer bunks

I then found some plastic/poly 2x4 themselves which would not require any wood at all. They would be about 88.00 for 2-8 footers and I may need to cut them down a little.

You need to check that product out more. The plastic 2x4 and 1x4 & 6 that I see at Lows and Depot are not structural. They are for exterior trim applications. So if you use them for bunks, they may just sag and eventually break. At those prices, I would stay with pressure treated 2x4.
 

gnrboyd

Petty Officer 2nd Class
Joined
Oct 18, 2007
Messages
157
Re: Need opinion on trailer bunks

Mark,

Yes, I checked with Lowes today as a matter of fact and the decking stuff they have won't cut it. (I didn't even see any 2x4s...just 5/4 decking) They also have wood in them anyway which is one reason I wanted to go with the fully plastic stuff.

At those prices, I would stay with pressure treated 2x4.

Keep in mind the 88.00 shipped price at ultimatebunkboards.com for 2 8 footers would be total spent. If you go with treated 2x4s, you have to add in adhesive, carpet, and some stainless staples. I'm guessing that would still be at least 30.00 or so. If I can find the plastic ones around the 40-50 range I think I'm gonna go that route. I was hoping to get some feedback from this post about anyone using the plastic ones. Anyone???
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Need opinion on trailer bunks

Go back to the home store and look at some of the yard furniture (benches and picnic tables) made out of that stuff. It sags before it's even sold. I wouldn't use it for a dog house. You don't need expensive carpet for bunks and treated 2x4's will very likely last longer than you intend to keep the rig. As for height adjustment, put some spacers between the bunks and the brackets to raise them if needed. You also don't need stainless staples when galvanized roofing nails work just fine and provide more grip. You need so little carpet adhesive that's not even an issue. If you have to resort to plastic bunk sliders, to get the boat off the trailer, you aren't backing in far enough. The boat should float off. Tie the bow line to the trailer with enough slack to float the boat off. Pull ahead thus bringing the boat to you. Do your thing from there. If unloading the boat is that much of an issue, trade the trailer for a roller trailer. They work so well that if you untie the winch strap before you back in, the boat will be laying on the ramp. I've owned both style of trailers and will never own another bunk style unless I end up with glass boat at some point in the future.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
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51,019
Re: Need opinion on trailer bunks

home depot sells an outside 5x8 carpet for $9 i've done 3 trailers with this one piece. never have used carpet glue. roofing nails last as long as the wood.
 

pman7

Petty Officer 2nd Class
Joined
Nov 29, 2006
Messages
129
Re: Need opinion on trailer bunks

home depot sells an outside 5x8 carpet for $9 i've done 3 trailers with this one piece. never have used carpet glue. roofing nails last as long as the wood.


That's interesting, my Home Depot didn't have any appropriate carpet in 8' lengths. It was either 6' or 12'. Same with Lowes.

For my longer 7'10" bunks I had to buy a 12' strip. It ran about $4.40/ft at Lowes. It was the rubberbacked marine grade carpet. Pretty thin stuff but that made it easy to put on the bunks. Now that I recognize it (standard gray color), I see it on many trailers.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Need opinion on trailer bunks

they also have hall runners by the foot, any lenght, about $2.00 a foot, and you split it.
 
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