- Best overall: UV Hydro 5th Wheel, 37'1" to 40', 4 layers, zip doors both sides, 3-year warranty.
- Best for sun: Olefin HD Fifth Wheel cover, 31'1" to 34'.
- Best for humidity: SFS AquaShed Designer Series, sold in bands from 28'1" up to 43'6".
- Every AquaShed fifth wheel cut listed here is 106 to 108 inches wide and 126 to 132 inches tall.
Best overallADCO Designer Series UV Hydro 5th Wheel Cover 37'1" - 40'
Best for sunADCO 36855 Designer Series Olefin HD Fifth Wheel Trailer Cover 31' 1" - 34'
Best for shorter fifth wheelsADCO 52254 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 28'1" - 31'
Best for 34 to 37 feetADCO 52256 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 34'1" - 37' ,GraThe best fifth wheel cover is cut tall enough for the raised front cap and long enough for the rear ladder, without leaving extra fabric to flap. Fifth wheels are the tallest towables most owners store, so a generic trailer cover usually rides up and leaves the lower sides bare.
ADCO cuts dedicated 5th wheel covers in three fabric lines and in length bands up to 43 and a half feet. Below are six that cover the common sizes, with details taken from each listing.
Our picks
ADCO Designer Series UV Hydro 5th Wheel Cover 37'1" - 40'
The UV Hydro 5th Wheel cover fits 37'1" to 40', listed as 445 to 480 inches. It has a 4-layer design with superior UV resistance and a hydrophobic water barrier, according to the maker. Zipper entry on both sides supports slide-outs during storage, with red accents at the pull points. It includes 4 gutter spout covers and a ladder cap cover, plus a 3-year warranty.
- Zip doors on both sides
- Ladder cap and spout covers included
- 3-year warranty stated
- Only the 37-40 ft band in our catalog
ADCO 36855 Designer Series Olefin HD Fifth Wheel Trailer Cover 31' 1" - 34'
This Designer Series Olefin HD cover fits fifth wheels of 31'1" to 34'. The Olefin HD line pairs a top panel that reflects sunlight with designer polypropylene sides. The line's listings describe slip-seam strapping at the top and bottom and a weighted toss-under buckle. The gray and white colorway matches ADCO's other Olefin covers.
- Reflective Olefin HD top
- Slip-seam strapping
- Breathable polypropylene sides
- This listing has very little detail of its own
ADCO 52254 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 28'1" - 31'
The 52254 fits 28'1" to 31' fifth wheels, with a listed cut of 378 x 108 x 126 inches. Its triple-layer SFS AquaShed top panel beads water on contact. Two-tone designer polypropylene sides are there for breathability, and ADCO says they virtually eliminate mold and mildew. The listing claims maximum resistance to high humidity and rainfall.
- Triple-layer water-beading roof
- Breathable two-tone sides
- 126-inch height
- Warranty not listed
ADCO 52256 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 34'1" - 37' ,Gra
The 52256 brings the same SFS AquaShed build to 34'1" to 37' rigs, listed at 450 x 108 x 126 inches. The triple-layer top beads water, and the two-tone sides breathe. It suits the most common full-size fifth wheel lengths. ADCO frames it for high humidity and rainfall.
- Fits a popular size range
- Breathable sides
- Same AquaShed fabric as the line
- Big and heavy to unroll alone
ADCO 52257 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 37'1" - 40' ,Gra
The 52257 fits 37'1" to 40', listed at 486 x 108 x 126 inches. Its listing adds a detail the others skip: a light colorway that reduces temperature buildup. You still get the triple-layer AquaShed top and breathable polypropylene sides. That makes it a fit for humid, hot summers like the Gulf Coast.
- Light colorway cuts heat buildup
- Triple-layer top panel
- Mold and mildew resistant sides
- Access doors not mentioned
ADCO 52258 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 40'1" - 43'6" ,G
The 52258 is the longest ADCO fifth wheel cover here, for 40'1" to 43'6" rigs. The listing gives 528 x 106 x 132 inches, the tallest cut in the group. It uses the same triple-layer SFS AquaShed top and two-tone sides. It is aimed at toy-hauler-length and luxury fifth wheels.
- Fits up to 43'6"
- 132-inch height
- High humidity resistance
- Needs two or more people to fit
How to choose the best fifth wheel cover
- Measure bumper to ladder, leaving out the pin box if it sticks past the cap.
- Pick the fabric: UV Hydro for mixed weather and frequent access, Olefin HD for sun, SFS AquaShed for damp climates.
- Check access: zip doors on both sides let you reach slides and the entry door.
- Plan for the cap: the cover needs enough height to reach below the front overhang.
How long is each ADCO fifth wheel cover?
The SFS AquaShed listings give exact cut lengths. They step up about 36 inches per band.
SFS AquaShed fifth wheel cover length
Listed length, inches
| Cover | Band | Listed size (in) | Top panel | Zip entry |
|---|---|---|---|---|
| UV Hydro 5th | 37'1"-40' | 445-480 long | 4-layer, hydrophobic | ✓ Both sides |
| Olefin HD 36855 | 31'1"-34' | ~ Not listed | Reflective Olefin HD | ~ Not listed |
| SFS AquaShed 52254 | 28'1"-31' | 378 x 108 x 126 | Triple-layer SFS | ~ Not listed |
| SFS AquaShed 52256 | 34'1"-37' | 450 x 108 x 126 | Triple-layer SFS | ~ Not listed |
| SFS AquaShed 52257 | 37'1"-40' | 486 x 108 x 126 | Triple-layer SFS, light color | ~ Not listed |
| SFS AquaShed 52258 | 40'1"-43'6" | 528 x 106 x 132 | Triple-layer SFS | ~ Not listed |
Sun or rain: which fabric suits a fifth wheel?
A tall front cap catches the most sun and wind of any part of the rig. In the South and Southwest, a reflective Olefin HD roof makes sense. In wet regions, the SFS AquaShed top beads water and the sides let moisture out.
Our SFS AquaShed vs Olefin HD comparison lays out the trade-offs side by side. If your fifth wheel will sit through the cold months, also read our winter RV cover guide.
Our top fifth wheel picks
ADCO Designer Series UV Hydro 5th Wheel Cover 37'1" - 40'
Check price →ADCO 36855 Designer Series Olefin HD Fifth Wheel Trailer Cover 31' 1" - 34'
Check price →ADCO 52256 Designer Series SFS Aqua Shed 5th Wheel RV Cover - 34'1" - 37' ,Gra
Check price →Fifth wheels ride on tandem or triple axles, and those tires sit outside the cover. A double-axle Tyre Gard is covered in our RV tire cover guide. Bumper-pull owners can start at the travel trailer covers catalog.
How we picked
We gathered every ADCO 5th wheel cover in our catalog and sorted them by roof fabric. The UV Hydro and Olefin HD covers each got a spot as the line's representative. In the SFS AquaShed line, where the listings give exact dimensions, we picked bands that cover the most common lengths and called out the one with a heat-reducing light colorway.
All details come from the listings. Where a listing gave little detail, we said so and leaned on the line's shared features. We did not use prices or ratings.
FAQ
What is the best fifth wheel cover for mixed weather?
On paper, the UV Hydro 5th Wheel cover: 4 layers, a hydrophobic water barrier, zipper entry on both sides and a 3-year warranty.
How tall should a fifth wheel cover be?
The SFS AquaShed fifth wheel listings give heights of 126 to 132 inches, which is cut to reach down past the raised front cap.
Can I use a travel trailer cover on a fifth wheel?
It will usually sit short at the front. A 5th wheel cover is cut for the overhang above the pin box.
Do I need zip doors on a fifth wheel cover?
Only if you plan to enter the rig during storage. The UV Hydro listing says its zippers on both sides support slide-outs.
How many people does it take to put on a fifth wheel cover?
Two is realistic for most sizes. The weighted buckles help, but rolling a 40-foot cover over a tall roof is hard to do alone.