Dometic 8500 Manual Patio Awning, 20 ft, Onyx, Black Weathershield
Dometic 8500 Manual Patio Awning, 20 ft, Onyx, Black Weathershield — Product description
The Dometic 8500 is a full-length manual patio awning for larger RVs, sized here at 20 feet of roller with an 8-foot extension in Onyx double-sided vinyl. A heavy-duty torsion spring, die-cast castings, and a secure rafter lock make it a smooth one-person setup that shades the whole patio side of your rig.
The Dometic 8500 is the manual patio awning a lot of RVers end up wishing they'd bought the first time. This one measures 20 feet of roller length with an 8-foot extension, wrapped in Onyx double-sided vinyl behind a black vinyl weathershield and finished with black castings. It's a big awning built for full-size travel trailers and fifth wheels where you want real shade over the whole patio side, not just the door.
Here's the honest part up front. The title says hardware must be purchased separately, and that matters. What ships is the awning assembly itself, the roller tube, the fabric, the arms, and the end castings. The mounting hardware that bolts to your rig, the brackets and the awning rail attachment kit, gets ordered separately based on your coach. If you're replacing an existing 8500 or a same-pattern Dometic manual awning, your current mounting points usually carry right over. If this is a first-time install, plan on sizing the mounting kit to your wall before you order.
The 8500 has been Dometic's workhorse manual for years, and the reason is the guts. The arms run a heavy-duty torsion spring assembly with self-lubricating bushings, so rolling it out and cranking it back stays smooth season after season. The end castings are die-cast, not stamped, which is what keeps the whole thing from getting sloppy after a few hundred cycles. One person can set it up. You pull it out with the strap, set the pitch, and lock the rafters.
That rafter lock system is the part people don't appreciate until they've used a cheaper awning. It stabilizes the arms and puts automatic tension on the fabric so it doesn't flap and drum every time the wind picks up. Dometic's PermaLoop pull strap keeps the fabric tensioned while you move the arms between the pivot and carport positions, so you're not fighting a loose canopy mid-adjustment. Little stuff, but it's the difference between a two-minute setup and a wrestling match.
The fabric itself is a 4-ply laminated polyester-reinforced vinyl. Double-sided, so the Onyx pattern reads clean whether you're looking up at it from your chair or someone's looking at your rig from across the lot. Vinyl handles UV and it's scratch resistant, and the panel is cut with an automatic rain shed so water runs off one side instead of pooling in the middle and turning into a sag. Pitch one arm a touch lower and the runoff does the rest.
The black vinyl weathershield is the cover that wraps the rolled-up fabric when the awning is stowed for travel. It keeps road grime, UV, and weather off the canopy so the fabric lasts, and the black shield with black castings gives you that blacked-out look that pairs well with darker exterior graphics and trim. Onyx is a safe, sharp color choice that hides dirt better than the lighter linen fades.
Who's this for? Owners of larger travel trailers, fifth wheels, and toy haulers with a 20-foot-plus patio wall who want a full-length manual awning and don't need power. Manual is simpler, there's less to break, and there's no motor or wind sensor to fail. If you park seasonally or you're the type who cranks the awning in every time you leave the site, a manual 8500 is honestly the sweet spot. If you want push-button convenience or automatic wind retraction, that's a different Dometic model.
A couple of straight-shooter notes. Twenty feet is a lot of awning, so this is a two-ladder job to hang even though one person can operate it once it's mounted. Always crank it in during storms and before you tow, because no awning likes highway wind or a gust front. And double-check your mounting-hardware order against your coach's wall height and rail type before it ships, because getting the awning but not the right brackets is the most common hiccup we see on these.
Key Features
- 20-foot roller length with an 8-foot extension covers a full patio wall on larger trailers and fifth wheels.
- Manual operation, one person can roll it out, set the pitch, and lock the rafters in about two minutes.
- 4-ply laminated polyester-reinforced vinyl canopy, double-sided so the Onyx pattern looks clean from both sides.
- Heavy-duty torsion spring assembly with self-lubricating bushings keeps the arms smooth cycle after cycle.
- Die-cast end castings resist the slop and rattle that stamped hardware develops over time.
- Secure rafter lock system adds automatic fabric tension so the canopy won't flap and drum in the wind.
- PermaLoop pull strap holds tension while you move the arms between pivot and carport positions.
- Automatic rain shed runs water off one side instead of letting it pool in the center.
- Scratch-resistant vinyl with UV protection stands up to sun and road grime.
- Black vinyl weathershield wraps the rolled fabric for travel and gives a blacked-out look with the black castings.
- Mounting hardware sold separately so you can match the brackets to your exact coach.
Why Buy from NVN Marine
- Authorized Dometic reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Dometic 8500 Manual Patio Awning, 20 ft Length x 8 ft Extension, Onyx, Black Vinyl Weathershield, Black Castings |
|---|---|
| Brand | Dometic |
| Manufacturer Part Number | 848NR20.300U |
| UPC | 713814253974 |
| Series | 8500 |
| Awning Type | Manual patio awning |
| Operation | Manual |
| Roller Length | 20 ft |
| Extension (Projection) | 8 ft |
| Fabric | 4-ply laminated polyester-reinforced vinyl |
| Fabric Sides | Double-sided |
| Fabric Color | Onyx |
| Weathershield | Black vinyl |
| Castings | Black die-cast |
| Spring Assembly | Heavy-duty torsion spring |
| Bushings | Self-lubricating |
| Rafter Lock | Secure rafter lock with automatic tension |
| Pull Strap | PermaLoop tensioning strap |
| UV Protection | Yes |
| Rain Management | Automatic rain shed |
| Operation Crew | One person |
| Mounting Hardware | Sold separately |
| Application | RV, travel trailer, fifth wheel |
Frequently asked questions
What's the actual size of this awning?
The roller is 20 feet long and it extends 8 feet out from your rig. That covers a full patio wall on most large travel trailers and fifth wheels.
Does mounting hardware come with it?
No. The title spells it out, hardware is purchased separately. You get the awning assembly, roller, fabric, arms, and castings. The brackets and rail-attachment kit that bolt to your coach are ordered based on your wall.
Is this a manual or electric awning?
Manual. You roll it out by hand with the pull strap, set the pitch, and lock the rafters. No motor and no wind sensor, so there's less to break.
Can one person set it up?
Yes. Once it's mounted, the 8500 is designed for one-person operation. Hanging a 20-foot awning on the wall in the first place is a two-person, two-ladder job.
What is the weathershield?
It's the black vinyl cover that wraps the rolled-up fabric when the awning is stowed for travel. It keeps UV, road grime, and weather off the canopy so the fabric lasts longer.
What color is the fabric?
Onyx. It's a double-sided vinyl so the pattern looks clean from underneath and from the outside, and darker colors like Onyx hide dirt better than the light linen fades.
What is the fabric made of?
A 4-ply laminated polyester-reinforced vinyl. It's scratch resistant, blocks UV, and it's cut with an automatic rain shed so water runs off instead of pooling.
Will it hold up in wind?
The rafter lock system adds automatic tension so it won't flap in a normal breeze. But no patio awning is built for storms. Crank it in during high wind and before you tow.
Does it fit my RV?
The 20-foot size fits rigs with a patio wall of roughly 20 feet or more. Because mounting hardware is separate, measure your wall and match the bracket kit before ordering.
What are the arms and castings made of?
The castings are die-cast, and the arms run a heavy-duty torsion spring with self-lubricating bushings. That's what keeps the operation smooth and rattle-free over years of use.