2026 Keystone Montana 3100RL Dimensions for Campsite Fit

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Original Member Title: Dimensions
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Pete is awaiting delivery of a 2026 Keystone Montana 3100RL and wanted a dimensioned diagram to confirm it will fit in a campsite previously used by his travel trailer. Members pointed him to the Keystone brochure specs showing an advertised length of 35'11", but several cautioned that Montana measurements may not reflect the full physical length of the RV.

  • One member said their older 3100 Montana measured about 2 feet longer than the published spec because the measurement did not...
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MinnesotaVet

New Member
Joined
Jul 25, 2026
Posts
9
Location
St. Cloud Minnesota
Hello,

Does anyone have a diagram of the 2026 Keystone Montana 3100RL with all of the dimensions on it. I'm waiting for the delivery of mine and would like to check that it will fit in the campground spot where my travel trailer was. I know I should have done the measurements when I did the inspection, but forgot and want to get a jump start for when I pick it up.

Thank you in advance.
Pete
 
Link to the sales brochure with floor plan and specs. Shows length as 35’11”. If the convenience center is under the bedroom, I’d guess it’s about 2/3-3/4 of the way from the back.

The link should go to the ‘26s but you might have to confirm the year from the pull down menu on the left.


IMG_0906.jpeg
 
I don’t know if it still holds true, but when I bought my 2015 3100 Montana the measured from the kingpin to the rear of the trailer. Mine was about 2 feet longer than their specs because they don’t include the ladder or the foot and a half in front of the king pin in their measurements.
 
This sketch has dimensions of my unit...probably not that much different. Use the brochure for height and length.
 

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  • dimensions.jpg
    dimensions.jpg
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You didn’t mess up. Montana measures to the pin on pin box. The camper is at least and extra ft pass the pin
 

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