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alum frame vs. styrofoam?

coon_creekers
Explorer
Explorer
after talking with a dealer we have learned most new manufacturers are switching to a cheaper much less durable construction, not a metal frame but rather a Styrofoam like product, in walls floor AND ROOF! how, and where, can we go to find out what manufacturers are still designing with a metal box frame? we are thinking of traveling extensively for a year, and were told with the new design, there wouldn't be much left to pull home! he did have a 2000 carri-lite with a metal frame, are there others??
18 REPLIES 18

hmar1
Explorer
Explorer
Keystone Montana's are metal frame

lynndiwagon
Explorer
Explorer
I'll tell you one thing, styrofoam in the walls and ceilings is one heck of an insulator. I've owned many rigs before this one, and this one holds it's temperature the best. Even the AC ducts are molded into the ceiling insulation. BTW, the styrofoam is not structural.
Lynn & Diana Wagoner
Three Boston Terriers
2011 Chevy 3500HD, DRW, 4X4
2014 Big Country 3650RL
Retired

coon_creekers
Explorer
Explorer
I thank you all so very much for your info! we want to make an informed purchase, not a knee-jerk reaction to fluff, and you all are so helpful in your knowledge. I appreciate it

avvidclif1
Explorer
Explorer
www.crossroadsrv.com

The older Cruiser Series had a 6 sided aluminum cage(Gorilla Cage)on 16" centers. The frame itself is steel and the "cage" sits on it. Now they have gone to 5 sided with wooden trusses for the roof. Block foam insulation. I like mine. The Cruiser Series are a mid range 5er, think mid 5 figures list.
Clif & Millie
2009 Ford F350 SRW CC Lariat 6.4 Diesel
2015 Heartland Cyclone HD CY3418 Toy Hauler

JEBar
Explorer
Explorer
coon creekers wrote:
after talking with a dealer we have learned most new manufacturers are switching to a cheaper much less durable construction, not a metal frame but rather a Styrofoam like product, in walls floor AND ROOF!


some, sure .... most, not at this point .... if it proves to be a cheaper process that can withstand the stress and doesn't cost the manufactures much in warranty, it would be likely that others will follow


coon creekers wrote:
how, and where, can we go to find out what manufacturers are still designing with a metal box frame? we are thinking of traveling extensively for a year, and were told with the new design, there wouldn't be much left to pull home! he did have a 2000 carri-lite with a metal frame, are there others??


Jayco ... Rockwood .... Salem .... three different types of construction with very different levels of quality .... all are still built using metal frames with various types of wall construction

Jim
'07 Freightliner Sportchassis
'06 SunnyBrook 34BWKS

Jerry_B
Explorer
Explorer
My 35 ft National Dolphin Motorhome had very little framing. Even the windows weren't framed out. Sidewalls were laminated fiberglass skin over Mende board on the outside, foam in the middle and plywood on the inside. I was never thrilled about it, but it never gave me any problem(sidewalls that is).
Jerry B
Mobile Suites 36TK3

notruffinit
Explorer
Explorer
I visited the factories to see how the various models were made. The high end (most expensive) had frames that were studs set 16" on center with fiberglass insulation and the less expensive had "frames" but the studs were about 4' on center and filled between with laminated foam construction. I know that Mobile Suites and now the Lifestyle 5ers are built with 16" stud frame construction. I have a Cameo and I too is 16" studs with fiberglass.
'11 Ram 3500 Cummins
'12 Cameo 34SB3

2oldman
Explorer II
Explorer II
coon creekers wrote:
and were told with the new design, there wouldn't be much left to pull home!
Nah.

I've been pulling an Okanagan 5er around for 10 years, and it's still all there. AFAIK, its walls are all foam. The only gripe I have is that it isn't very soundproof.
"If I'm wearing long pants, I'm too far north" - 2oldman

Allworth
Explorer II
Explorer II
You can tell when they are lying! Their mouths move.
Formerly posting as "littleblackdog"
Martha, Allen, & Blackjack
2006 Chevy 3500 D/A LB SRW, RVND 7710
Previously: 2008 Titanium 30E35SA. Currently no trailer due to age & mobility problems. Very sad!
"Real Jeeps have round headlights"

goducks10
Explorer
Explorer
Aren't Big Foot TT's made that way? As long as it's durable I don't care how it's made. IIRC Lance TT's have minimal framing and rely on the wall construction to part of the integrity. Just watch the Lance factory tour vid on YouTube and while you can see some studs in the wall, it looks like the majority of the wall is just block foam. Don't hear of any issues from their walls falling off. Times are a changing and new technologies will be hard for some to accept.

B_O__Plenty
Explorer II
Explorer II
I would throw the B.S. flag on this one. Go on the various RV manufacturer websites and see how they're built. Almost every one has a metal or wood framework and rafters...Let me guess..The brand he sells has a framework also.

B.O.
Former Ram/Cummins owner
2015 Silverado 3500 D/A DRW
Yup I'm a fanboy!
2016 Cedar Creek 36CKTS

BB_TX
Nomad
Nomad
coon creekers wrote:
.........
, and were told with the new design, there wouldn't be much left to pull home! he did have a 2000 carri-lite with a metal frame, are there others??

I don't care how well known he is, that is typical salesman talk. I can just see trailers being towed down the road with no tops on them because they disintegrated and fell off. :Z

Be careful of any bad claims on brands that a salesman does not carry or does not want to sell.

jerem0621
Explorer II
Explorer II
I love wood construction in good ole sticks and Tin trailers. Jayco, Puma, Zinger, Artic Fox...etc etc.

However, the foam construction in the trailmanor is anything but cheap.

Thanks,

Jeremiah
TV-2022 Silverado 2WD
TT - Zinger 270BH
WD Hitch- HaulMaster 1,000 lb Round Bar
Dual Friction bar sway control

It’s Kind of Fun to do the Impossible
~Walt Disney~

Turbo_Diesel_Du
Explorer
Explorer
I have a 35 year old boat ( McKee Craft that is filled with foam as is Boston Whaler and many others I'm sure that is as solid as the day it was made. 17 foot and I run a 140 HP Johnson. Must be pretty strong as it takes fiberglass about 20 years to cure for max strength. JMHO
charles weidman