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Does an extra 6 inches matter?

flash82
Explorer
Explorer
...get your mind out of the gutter..... Am talking about the areodynamics and towing characteristics of a 7.5 foot compared to an 8 foot wide. With things equal like frontal shape and height would there be much of a difference? Just a few inches more to stick outside the tow vehicle. It was a conversation we had earlier....just curious.
19 REPLIES 19

mosseater
Explorer II
Explorer II
Only negative difference you'll see is having less room going through the Jersey barriers in PA's never-ending road construction. Personally, I like the challenge of making it through without trading paint.
"It`s not important that you know all the answers, it`s only important to know where to get all the answers" Arone Kleamyck
"...An unarmed man can only flee from evil, and evil is not overcome by fleeing from it." Col. Jeff Cooper
Sunset Creek 298 BH

Major_Dad
Explorer
Explorer
We just went from an 8' wide to 8'4" wide trailer. I never tow over the 65 mph tire rating, and have a 3/4 ton diesel. No noticeable difference in mpg or handling, though towing in the city on narrowed construction lanes takes some getting used to.
2017 Thor Compass 23TR last RV
MV-1 Mobility ventures wheelchair van
DH+DW 36+ years
Millie the fawn brindle greyhound

Campfire_Time
Explorer
Explorer
I went from a 7ft wide trailer to an 8ft wide. Makes no difference.
Chuck D.
โ€œAdventure is just bad planning.โ€ - Roald Amundsen
2013 Jayco X20E Hybrid
2016 Chevy Silverado Crew Cab Z71 LTZ2
2008 GMC Sierra SLE1 Crew Cab Z71 (traded)

rbpru
Explorer II
Explorer II
A 6 inch increase in TT width can make a surprising improvement in living space but it has far less impact on gas mileage than dropping your speed 5 to 10 mph.
Twenty six foot 2010 Dutchmen Lite pulled with a 2011 EcoBoost F-150 4x4.

Just right for Grandpa, Grandma and the dog.

brulaz
Explorer
Explorer
We went from a 24'x7.5' (56 sqft), 4000# (no slide) trailer to 28'x8' (64 sqft), 7500# (with slide).

Our mileage on regular gas went from 12.5 mpgUS down to 10 mpgUS.
(on Premium I'm now getting 10.7 mpgUS)

To us, the increased amount of interior space, especially with the slide, makes it worthwhile.
2014 ORV Timber Ridge 240RKS,8500#,1250# tongue,44K miles
690W Rooftop + 340W Portable Solar,4 GC2s,215Ah@24V
2016 Ram 2500 4x4 RgCab CTD,2507# payload,10.8 mpgUS tow

LewBob
Explorer
Explorer
We went from an 8-foot-wide, 32-foot-long TT to a 8.5/24 with almost identical gross weight. The longer unit had a more aerodynamic front cap compared to a flat, sloping front on the shorter trailer. Based on two cross-country trip in similar conditions, the longer, aerodynamic rig got slightly more than 1 mpg better mileage.

Lew


2015 Casita Freedom Deluxe
2012 Ford F-150 XLT SuperCrew 4x4 EcoBoost
"Wish I didn't know now what I didn't know then." --Bob Seger (Against the Wind)

wincrasher65
Explorer
Explorer
I depends on how marginal your tow vehicle is. It's more surface area. If it's enough to effect mileage or handling depends on your tow vehicle.

Is this trailer a flat front? Or is an aerodynamic fiberglass cap? That makes more of a difference. If it has a rounded cap, the extra width might not make any noticeable difference. Flat fronts are the worst, and I never recommend them.
2016 Winnebago Travato 59K, 2017 Allegro 32SA
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valhalla360
Nomad III
Nomad III
Yes, it makes a difference but not enough to make fuel consumption a serious consideration. In fact, you would probably be hard pressed to accurately measure the difference.

Where you will notice it is inside in the living space. On the surface it looks like you are adding 6.25% to the width and that doesn't seem substantial but reality is once you account for wall thickness and cabinets and other protrusions into the space, the actual open space will increase by more like 10-15% and that's what you really assess in terms of living space.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV

Highway_4x4
Explorer
Explorer
If you only miss something by 2 inches, that extra 3 inches could be a big problem.
2014 Ram Cummins Laramie, Crew cab, 4x4, Loaded, Snugtop camper
2014 OutdoorsRV Wind River 250RDSW
Big spoiled Bernese Mountain Dog

Dragonfly
Explorer
Explorer
Yes it makes a difference but, it depends upon how you travel. For me, traveling back roads and often gravel roads, width makes a big difference on tight turns and in tight spaces. For me, towing with a HD F150 I wouldn't want the extra weight. For me on a limited budget, the extra square footage of air resistance and impact on gas mileage makes a big difference over long distances. For others who travel interstates and main highways and are satisfied with the other small sacrifices of the extra size, perhaps they would see no issue.
DRAGONFLY - 2011, Provan Tiger CX, on a F350, 4WD, regular cab chassis

doxiluvr
Explorer II
Explorer II
The title of your question caught my eye, so had to check it out but I really have no idea if that 6 inches would make a difference or not.
2006 Keystone Sprinter 300fkms
2007 Silverado 2500 Duramax Diesel 6.6 - Allison 1000 6 spd. auto. tran.
1 high school sweetheart hubby - 1 ChiWeenie - Abby
4 grown kids, 6 grandkids, 2 great-grandchildren
1 2007 Yamaha v-Star 1300

rexlion
Explorer
Explorer
My wife doesn't think so.
Mike G.
Liberty is meaningless where the right to utter one's thoughts and opinions has ceased to exist. That, of all rights, is the dread of tyrants. --Frederick Douglass
photo: Yosemite Valley view from Taft Point

DutchmenSport
Explorer
Explorer
I went from an 8 foot wide to an 8 foot 6 inch wide camper. I've not noticed any difference at all. Except the new one is longer and naturally heavier since it also has slides and the old one (shorter by 4 feet and no slides) was not as heavy. No difference on the road though. I never done a comparison of the actual trailer frame to figure out if the wheels are actually farther apart between the two trailers. It's possible the same frame width may be the same, and the tires may be the same width, I do't know, never measured it, never thought about it until just right now. But I do know, as far as wind resistance, ... nada! Enjoy the larger camper!

fla-gypsy
Explorer
Explorer
No difference
This member is not responsible for opinions that are inaccurate due to faulty information provided by the original poster. Use them at your own discretion.

09 SuperDuty Crew Cab 6.8L/4.10(The Black Pearl)
06 Keystone Hornet 29 RLS/(The Cracker Cabana)