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Open Roads Forum  >  Fifth-Wheels

 > Measurement of Length

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transamz9

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Posted: 03/08/18 04:05am Link  |  Quote  |  Print  |  Notify Moderator

fj12ryder wrote:

I don't think there would be more than 6-8 inches from the kingpin to the very front of the 5th wheel. Most of them are on an extended pinbox so that puts the kingpin very near the actual front. About the only one I could think of that would be 4-5 feet is one of the Titanium line with the extended front end.


My fifthwheel's nose hanged over 2' past the pin. Mine list length is 38' but measures 42' from cap to ladder.

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laknox

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Posted: 03/08/18 08:18am Link  |  Quote  |  Print  |  Notify Moderator

Ask the seller to drop a plumb line at the front of the pin box, OR FORWARDMOST PROJECTION, and make a mark on the ground. Same with the rear; plumb line from the bumper, OR REARMOST PROJECTION, to the ground and mark it. Measure between the 2 marks. That's how I got 29'3" on my old Komfort.

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Cummins12V98

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Posted: 03/08/18 08:29am Link  |  Quote  |  Print  |  Notify Moderator

^^^^^ Good idea but a simple way is to hold a coin or rock at the front and back caps and let it drop to the ground and watch where it hits then make a mark and measure between the two marks.


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gkainz

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Posted: 03/08/18 08:33am Link  |  Quote  |  Print  |  Notify Moderator

or wait until afternoon and measure the shadow ...
or move the trailer after a light snowfall or rain and measure the dry spot ...
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larry barnhart

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Posted: 03/08/18 09:05am Link  |  Quote  |  Print  |  Notify Moderator

once the number were very close to the length with the true length was more like maybe one ft longer than what the trailer showed. I cannot understand the reason for fooling folks but somebody tell us please.

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SugarHillCTD

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Posted: 03/08/18 09:21am Link  |  Quote  |  Print  |  Notify Moderator

Our Cougar 25RKS is shown as being 27' 2" in the brochure.

Keystone states that their length is measured from the center of the kingpin to the rear bumper.

As stated in some posts above, the number is now more of a model number than a true length.


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laknox

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Posted: 03/08/18 09:42am Link  |  Quote  |  Print  |  Notify Moderator

I =have= noticed that some mfrs list a length, then a different number for OAL external length. My KZ shows 31'8" but it is specific that this # is king pin center to rear bumper. Given that there's probably 5-6" to the front of the pin box from the center of the pin, that would make it's OAL at least 32'1 or 2". The Jayco I was looking at has in its specs "Exterior Travel Length", of pin to bumper of 30'1" then "Total Exterior Length" of 31'2".

Lyle

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Posted: 03/08/18 10:11am Link  |  Quote  |  Print  |  Notify Moderator

If I got a discrepancy like that from a seller, I would be concerned about whether the guy actually owned the trailer, or was just a scammer making stuff up.

It's been a month and a half. OP, did you buy it, and what did you find???


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Cummins12V98

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Posted: 03/08/18 01:40pm Link  |  Quote  |  Print  |  Notify Moderator

"or wait until afternoon and measure the shadow ..."

Yea I don't think that is going to be even close to accurate.

Hammerboy

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Posted: 03/08/18 03:28pm Link  |  Quote  |  Print  |  Notify Moderator

Yea, I measured mine three time before we bought it. I have 8" to spare inside the barn. I was talking to my neighbor a couple doors down after he put a deposit down on a new fifth wheel and I half jokingly said "Make sure to physically measure your unit and not go by the literature" A few days later he flagged me down as I was driving by and thanked me for telling him that as it would not have fit in the barn. He was not happy with the dealer for quoting him what was in the book but was happy he did not sign papers on it and then find out when he brought it home. They ended up with another unit altogether. You need to take a tape measure to it.

Dan


2013 Chevy crew 2500 HD Duramax
2017 Wildcat 29rlx fifth wheel

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