I am new to rv's Fiberglass vs metal siding

Most alum sided RVs I do believe are wood const in the side wall where as RVs with fiberglass exterior usually have alum studs in side walls.

valhalla360 wrote:
Not sure what you mean by toy hauler without a garage. That is typically what defines a toy hauler.

Number of axles is about weight, though newer rigs you heavier axles and tires to keep down to twin axles. The trade off is this is where you read stories of blow outs. Those heavy duty trailer tires are produced in small batches and then ran near their limits, so quality control is harder. Realistically, you don't get to pick the number of axles. The number of axles the trailer comes with is the number of axles. You don't get to add an extra.

What I mean by no garage is for the toy hauler to be all open and not have a wall from the kitchen to the garage with a door.


From what I have read some trailers come with 2 7,500 lbs axles and others come with triple 5,000 lbs axles?

http://www.nadaguides.com/RVs/2005/Weekend-Warrior

shows FIFTH WHEEL models


M-2805 SL 29' x 8' Fifth Wheel 2 axles dry weigh 6559
M-3005 SL 31' x 8' Fifth Wheel 2 axles dry weigh 6920
M-3105 LE 32' x 8'5" Fifth Wheel 3 axles dry weigh 5800
M-3305 LE 34' x 8'5" Fifth Wheel 3 axles dry weigh 6000
M-3505 LE 36' x 8'5" Fifth Wheel 3 axles dry weigh 6200



They show m-2805 sl and m-3005 sl as tandem axle with weights of 6,500 and 6,900 lbs. While the m-3105 sl is triple axle and only weights 5,800 lbs? I think might be a typo beings is a wider and longer trailer?

Thanks for all the input you guys :-)

N-Trouble wrote:
Only real advantage I can see with aluminum siding is weight savings. Have owned both and will never go back to aluminum. Sound and thermal insulation are poor compared to fiberglass

This is my reason for my preference of fiberglass over aluminum.

What I mean by no garage is for the toy hauler to be all open and not have a wall from the kitchen to the garage with a door.


From what I have read some trailers come with 2 7,500 lbs axles and others come with triple 5,000 lbs axles?

http://www.nadaguides.com/RVs/2005/Weekend-Warrior

They show m-2805 sl and m-3005 sl as tandem axle with weights of 6,500 and 6,900 lbs. While the m-3105 sl is triple axle and only weights 5,800 lbs? I think might be a typo beings is a wider and longer trailer?

Thanks for all the input you guys :-)

My 5th wheel is laminated and is 11 years old. No de laminating at all. My TC is 20 years old and has aluminum and has also held up well. I am sure fiberglass would be easier to clean but I am not one to clean my rigs much. I think either is fine. Aluminum would be cheaper.

fiberglass vs metal siding

It used to be that metal siding meant wood construction (which is a whole other debate) but today you need to ask or verify if the frame is all aluminum or not. Fiberglass generally is easier to clean and a better insulator. Metal is almost always going to be cheaper and it weighs less. Fiberglass, if not done correctly, can result in delamination. However the processes today are much better then they were 10+ years ago when it was more common, but it can still happen. Today seems most of the higher end units are fiberglass.

sierra sport and weekend warrior

Assuming you’re talking about used? It will just depend on the unit and how well it’s been maintained. Be sure you read the thread in the main forum that stuck at the top called WW Repairs, you need to know about some of the problems before you jump. I don’t think the 5ers were part of the lawsuit, but some built during that era might have issues. Many members here still own WW’s and they get used daily.

28-32ft without a garage

You will find very few 5ers in that length range, most will be bumper pull. This may limit your selection.

Tandem vs triple axle?

Depending on the weight rating of the axle a triple will give you more weight to haul and handle. For what you are looking at you might be fine with a double axle, it all just depends on what you’re hauling and how heavy the trailer is. Back when we were shopping for our Raptor I really liked the Jayco hauler, but it was on a double axle and that made me nervous. The next year, after we bought our Raptor, they Jayco switched t triple axle.

I have a f250 with a 7.3 powerstroke for a tow vehicle

Wish they still made those engines! Before you jump and buy anything you need to get your weight ratings for your truck and tires. An F250 doesn’t automatically mean you’re set. But one you know your weight capacities then you can shop with more confidence. Your owners manual is your friend regarding this.

A few other things to do before you buy. Read up about water leaks, type of roofs, cheap what we call china-bomb tires, research and educate yourself and ask questions along the way too.

Welcome aboard!

Only real advantage I can see with aluminum siding is weight savings. Have owned both and will never go back to aluminum. Sound and thermal insulation are poor compared to fiberglass

Having had both I found aluminum to be easier to care for, not harder. It is lighter but more fragile. A limb that might scratch fiberglass can put a crease or hole in aluminum. I go down some narrow forest roads so I have to be careful about that. On the other hand if you do damage one or the other the aluminum is much more easily and cheaply repaired. Although the aluminum may look to have lots of seams it is really in 4' sections so there is only one seam on the front of most rigs, the joint is a z connection so if it was caulked properly leaking should never be an issue.

Aluminum is lighter and lower maintenance. If you don't keep fiberglass washed and waxed, it will look old quickly. You can cheat on aluminum more.

Most front end caps are fiberglass on aluminum rigs, so really a non-issue.

Otherwise, it's mostly preference. I suspect fiberglass is cheaper to produce, so you see more newer rigs with fiberglass. It does tend to make even newer good condition aluminum sided trailers look dated.

Not sure what you mean by toy hauler without a garage. That is typically what defines a toy hauler.

Number of axles is about weight, though newer rigs you heavier axles and tires to keep down to twin axles. The trade off is this is where you read stories of blow outs. Those heavy duty trailer tires are produced in small batches and then ran near their limits, so quality control is harder. Realistically, you don't get to pick the number of axles. The number of axles the trailer comes with is the number of axles. You don't get to add an extra.

Exact model details are needed to give a firm answer but odds are with a 3/4ton 7.3l, you are going to max out around 10,000lbs give or take a couple thousand. You are probably well short of triple axle capability. Plug your truck into a tow calculator. The item that will likely limit you is the pin weight on a larger 5th wheel.

WyoTraveler wrote:
My previous RV was a new 19 ft Jayco with metal siding. I traveled a lot in bad weather. Water would leak in through the seams in front while driving in rain storms. Never leaked while parked. Never could get it to stop. Dumped it in a trade before it was a year old.

Many manufacturers you can get aluminum siding, with fiberglass front caps, should solve the problem you describe. That's how my rig is, but I know it was an optional extra, I just lucked out that's how the dealer ordered it.