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Old 12-02-2019, 05:42 PM   #1
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King measurement Montana 3120rl

Hello everyone! I was wondering if anyone knows the dimensions of the King mattress that comes from the factory on a 2020 Montana 3120rl? My wife and I just purchased our fifth wheel but have not taken possession of it yet, we would like to replace the factory mattress with an aftermarket mattress. Any help on the matter would be greatly appreciated.


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Old 12-02-2019, 05:46 PM   #2
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2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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Old 12-02-2019, 05:52 PM   #3
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Thank you. I thought I read that somewhere. My son is in the Mattress business and is ordering one for us. We are trying to get some information to order it. Again thank you!
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Old 12-02-2019, 08:45 PM   #4
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My thinking is that you wait until you can put a tape measure on it. RVs are notorious for having who knows what come out for a mattress.
Danny & Susan wife of 52 years
2014 Ram 2500 6.4 4x4 CC
2014 Cougar High Country 319RLS
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Old 12-03-2019, 07:46 AM   #5
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Yep, probably safest to just wait. Ours came with a king mattress and it measured 72" wide. We downsized to a queen to gain more floor space in the bedroom.
Jeff & Sandi (and Teddy - 7lb Schnorkie)
2018 Montana High Country 305RL
2012 RAM 3500 Crew Cab 4x4 SRW
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