01 What makes it unique
Jayco lists the 2017 Designer 39FL at 14,815 lb dry, a GVWR of 17,995 lb, a net carrying capacity of 3,180 lb and a pin weight of 3,065 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 41' 6" long and 159" high. Jayco prints its tanks as 85 gal fresh, 117 gal grey, 37 gal black.
Among the 4 Designer floorplans Jayco’s 2017 Designer brochure lists with a published dry weight, it is number 3 from the lightest, in a range from 14,370 lb (Designer 37RS) to 15,115 lb (Designer 39RE). Every figure in that comparison is Jayco’s, for the same model year.
Every number on this page was read on 6 Nov 2026 from Jayco’s 2017 Designer brochure, the maker’s own dated document for model year 2017.
How the 39FL differs from the other three Designer floorplans. Most distinctive first. How these ranks are worked out.
- Cargo capacity, 3,180 lb: largest of four; next is the 37RS (3,130 lb).
- Grey tank, 117 gal: largest of four; next are the 37FB, 37RS and 39RE (95 gal).
- Black tank, 37 gal: smallest of four; next are the 37FB, 37RS and 39RE (50 gal).
- Dry weight, 14,815 lb: second-heaviest of four, between the 37FB (14,585 lb) and the 39RE (15,115 lb).
- Cargo capacity as a share of GVWR, 17.7%: second-largest of four, between the 37FB (16.7%) and the 37RS (17.9%).
- Pin weight as a share of dry weight, 20.7%: second-largest of four, between the 37FB (19.2%) and the 37RS (21.3%).
- Length, 41 ft 6 in: second-longest of four, between the 37FB (41 ft 1 in) and the 39RE (42 ft 5 in).
- GVWR, 17,995 lb: highest of four, level with the 39RE; next are the 37FB and 37RS (17,500 lb).
- Pin weight, 3,065 lb: heaviest of four, level with the 37RS; next is the 37FB (2,805 lb).
Next to the 37FB, the nearest lighter floorplan by dry weight, the 39FL is 230 lb heavier by dry weight, has a GVWR 495 lb higher, has 265 lb more cargo capacity, has a pin weight 260 lb heavier, is 5 in longer, has a grey tank 22 gal larger and has a black tank 13 gal smaller; the two publish the same exterior height, interior height and fresh tank.
Next to the 39RE, the nearest heavier floorplan by dry weight, the 39FL is 300 lb lighter by dry weight, has 300 lb more cargo capacity, has a pin weight 269 lb heavier, is 11 in shorter, has a grey tank 22 gal larger and has a black tank 13 gal smaller; the two publish the same GVWR, exterior height, interior height, fresh tank and sleeping capacity.
02 Full specifications
Dimensions
- Exterior length
- 41' 6"
- Exterior height
- 159"
- Exterior width
- 102"
- Interior height
- 85"
Weights
- Dry / unit base weight (UVW)
- 14,815 lb
- GVWR (max loaded)
- 17,995 lb
- Net cargo / payload (CCC)
- 3,180 lb
- Hitch / pin weight
- 3,065 lb
Capacities
- Fresh water
- 85 gal
- Grey water
- 117 gal
- Black water
- 37 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- Not published by Jayco
Sleeping & layout
- Sleeps
- 6
- Exterior Travel Length* (as printed)
- 40' 5" (footnote: "*Distance from the pin box to the bumper; total exterior length may be longer")
- Exterior Height (with opt. bedroom A/C) (as printed)
- 160"
- Grey tank note
- Grey Waste Water Capacity** — "**Split Tank"
- Weight definitions (as printed)
- Jayco: "CCC is equal to or less than GVWR minus UVW. The addition of options will decrease the CCC."
- Model year source
- Printed on the cover: "Designer Luxury Fifth Wheel | 2017"; Jayco brochure library (jayco.com/brochures/, Model Year 2017, Fifth Wheels) lists it as "2017 Designer Brochure".
How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (17,995 lb) and the upper loaded pin estimate (4,499 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.
03 The Designer floorplan family
Jayco’s 2017 Designer brochure lists 4 Designer floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Designer 37RS | 40' 1" | 2-4 | Profiled |
| Designer 37FB | 41' 1" | 2-4 | Profiled |
| Designer 39FL | 41' 6" | 6 | Profiled |
| Designer 39RE | 42' 5" | 6 | Profiled |
Jayco’s 2017 Designer brochure lists 4 Designer floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Jayco does not publish for the Designer 39FL
Jayco prints no tire size for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
14,585 lb dry and 17,500 lb GVWR, against this model’s 14,815 lb and 17,995 lb.
15,115 lb dry and 17,995 lb GVWR, against this model’s 14,815 lb and 17,995 lb.
06 Loading it for a trip
A full 85-gallon fresh tank is about 706 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 22% of the Designer 39FL’s 3,180 lb cargo capacity, leaving 2,474 lb (412 lb per rated berth). Across 4 Designer floorplans the water share runs 22% to 24%, and this plan’s is the lowest. Nearest on that share: Designer 37RS at 23%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).
07 Where this floorplan sits
Closest sibling: the Designer 39RE, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 41 ft 6 in vs 42 ft 5 in; dry weight 14,815 lb vs 15,115 lb; cargo capacity 3,180 lb vs 2,880 lb; hitch weight 3,065 lb vs 2,796 lb; grey tank 117 gal vs 95 gal; black tank 37 gal vs 50 gal. They match on sleeps, GVWR and fresh tank.
| Designer plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 17,995 | 3–4 of 4 | 17,500–17,995 |
| Dry weight (lb) | 14,815 | 3 of 4 | 14,370–15,115 |
| Cargo capacity (lb) | 3,180 | 4 of 4 | 2,880–3,180 |
| Hitch weight (lb) | 3,065 | 3–4 of 4 | 2,796–3,065 |
| Length | 41 ft 6 in | 3 of 4 | 40 ft 1 in–42 ft 5 in |
| Grey tank (gal) | 117 | 4 of 4 | 95–117 |
| Black tank (gal) | 37 | 1 of 4 | 37–50 |
| Sleeps | 6 | 3–4 of 4 | 4–6 |
Either side of it by GVWR: Designer 37RS is 495 lb lighter (17,500 lb GVWR); Designer 39RE matches it at 17,995 lb GVWR.
| Nearest Designer siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Designer 39FL | 41 ft 6 in | 6 | 14,815 | 17,995 | 3,180 | 3,065 | 85 |
| Designer 39RE | 42 ft 5 in | 6 | 15,115 | 17,995 | 2,880 | 2,796 | 85 |
| Designer 37RS | 40 ft 1 in | 4 | 14,370 | 17,500 | 3,130 | 3,065 | 85 |
| Designer 37FB | 41 ft 1 in | 4 | 14,585 | 17,500 | 2,915 | 2,805 | 85 |
All 4 Designer floorplans: Designer line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Designer 39FL | 17,995 | 14,815 | 6 | 41 ft 6 in |
| Bighorn 38RE | 17,995 | 15,275 | 4 | 42 ft 6 in |
| Durango Gold G359ROQ | 17,995 | 15,100 | 4 | 41 ft 8 in |
| North Point 381CKRE | 17,995 | 14,805 | 4 | — |
| Puma Grand Mesa 393RL | 17,999 | 14,844 | — | 42 ft 4 in |
| Cedar Creek 380RB2 | 18,000 | 14,984 | — | 43 ft 5 in |
| Influence 2903RL | 18,000 | 12,100 | — | — |
Against the Designer 39FL: the Bighorn 38RE is 1 ft longer and sleeps 2 fewer; the Durango Gold G359ROQ sleeps 2 fewer; the North Point 381CKRE sleeps 2 fewer.
08 Common questions about the Designer 39FL
How much does the Designer 39FL weigh?
14,815 lb dry; 17,995 lb GVWR, the most it may weigh loaded.
How much can the Designer 39FL carry?
3,180 lb, 18% of its GVWR (median across 442 fifth wheels here: 19%). A full fresh tank uses 706 lb of it.
What is the pin weight of the Designer 39FL?
3,065 lb as published, 21% of the dry weight (median across 686 fifth wheels here: 19%).
What size tow vehicle does the Designer 39FL need?
A tow rating of at least 17,995 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the Designer 39FL sleep?
It is rated to sleep 6. No other Designer floorplan here is rated for more.
What are the tank capacities on the Designer 39FL?
Fresh 85, grey 117, black 37 gallons. Off hookups, fresh water runs out first.
How long is the Designer 39FL?
41' 6" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
12 of the 18 fields this catalogue tracks are published for the Designer 39FL. Not published: slide count, axle count, tire specification, awning, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: jayco.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 11 recall campaigns and 4 owner complaints (model years 2005 on) against the Designer line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 4 complaints have been filed on this line — not enough to say what fails most often. They cover electrical system and tires.
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Designer line page.