01 What makes it unique
The Flagstaff E-Pro E171SLE is the only LE plan with a slide-out, which makes it one of the lightest slide-equipped trailers anywhere. Inside, a true front queen bed with overhead storage and wardrobes gives a proper bedroom, a jackknife sofa with a 30-by-15 swing table on the slide widens the living space at camp, and a kitchen with a two-burner cooktop, a convection microwave and a functional sink handles meals. A rear bathroom with a spacious rectangular shower and a porcelain toilet completes the layout — a genuine dry bath. Nominal capacity is two — a true couples’ coach that adds slide-out living space without giving up the easy tow weight of the LE line.
At 2,949 pounds unloaded and 20 feet, the E171SLE is an easy tow for mid-size SUVs and capable crossovers — strikingly light for a trailer with both a real queen bed and a slide; its 1,396-pound cargo capacity is generous, giving a couple real loading margin. Forest River does not print a GVWR on the factory detail page, so no loaded rating is published for this plan and none is derived here. As an LE plan it ships the cost-friendly LE Package: Dexter leaf-spring E-Z Lube axles, a single battery and a single 20-pound LP tank, a 10K roof A/C, a power awning, a 20,000-BTU furnace, a 6-gallon water heater, framed windows and a roof-solar prep with a side port. Tanks are a balanced 31-gallon fresh, 27-gallon grey and 27-gallon black.
Construction is the E-Pro laminate recipe — complete composite Azdel walls over a 6-sided full-aluminum cage, a vacuum-laminated fiberglass roof and aluminum floor joists — the same construction tier as Forest River’s r·pod and No Boundaries and a step above the metal-sided value lines. E-Pro is badge-engineered with the Rockwood Geo Pro. For a couple who wants a real front queen bed and slide-out living space — not a convertible dinette — in the lightest composite trailer that offers both, the E171SLE is the value couples’ plan with a slide.
02 Full specifications
Dimensions
- Exterior length
- 20' 0"
- Exterior width
- 90"
- Exterior height
- 10' 0"
- Slide-outs
- 1
Weights
- Unloaded vehicle weight
- 2,949 lbs*
- GVWR (max loaded)
- Not published by Forest River for this line
- Cargo carrying capacity
- 1,396 lbs
- Hitch / tongue weight
- 345 lbs
Capacities
- Fresh water
- 31 gal
- Grey water
- 27 gal
- Black water
- 27 gal
- Refrigerator
- 12V
Construction
- Frame
- 6-sided full-aluminum
- Walls
- Laminated Azdel composite
- Roof
- Vacuum-laminated fiberglass
- Underbelly
- Heated w/ radiant foil (N/A LE)
Running gear
- Axles
- 1 (single, leaf-spring)
- Hitch
- Bumper Pull
- Tires
- Nitrogen-filled off-road
- Front cap
- Fiberglass
Galley & bath
- Refrigerator
- 12V
- Cooktop
- 2-burner + convection microwave
- A/C
- 10,000 BTU
- Furnace
- 20,000 BTU
- Solar
- Roof-solar prep + side port
Sleeping & layout
- Sleeps
- 2
- Primary bed
- Front queen
- Layout
- Front queen bedroom, jackknife sofa slide, mid-galley, rear dry bath
- Awning
- 13' (power)
Drawn to scale
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
03 Flagstaff E-Pro floorplan family
Forest River’s Flagstaff E-Pro (badge-engineered as the Rockwood Geo Pro) is an off-grid, ultra-light travel-trailer line built “incredibly lightweight” to tow behind fuel-efficient crossovers and smaller SUVs. The E171SLE on this page is highlighted; the other profiled plans link to their own pages. Profiled here are breadth-spanning floorplans — from the sub-1,800-pound LE micro-trailer to the dual-axle family bunkhouse — with the rest of the roster catalogued on the line hub and profiled in demand order. Every E-Pro plan is built on a 6-sided aluminum cage with Azdel composite walls and a vacuum-laminated roof, rides on bigger off-road tires, and ships with a standard roof-solar prep, a 12V refrigerator and a 20,000-BTU furnace for boondocking-ready, extended-season camping.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| E11LE | 14' 11" | 4 | Smallest/lightest LE — convertible U-dinette, two bunks, rear outdoor kitchen, no indoor bath |
| E151TLE | 15' 7" | 2 | LE rear twin-to-king dinette, front kitchen, wet bath — no slide, value entry |
| E131DLE | 16' 0" | 2 | LE front-bedroom compact — indoor kitchen w/ microwave, dry bath, no slide |
| E171BLE | 20' 0" | 5 | LE family bunkhouse — front bed, two bunks, rear dry bath, no slide |
| E171SLE | 20' 0" | 2 | LE couples coach — front queen, jackknife sofa slide, rear dry bath (only LE with a slide) |
| E191FDT | 20' 0" | 3 | Front Murphy bed, dinette, full-width rear bath — no slide |
| E191SFD | 20' 0" | 3 | Front Murphy bed, kitchen slide, full-length rear bath — biggest bath in the line |
| E191RLS | 20' 8" | 2 | Rear-living couples coach w/ theater seating, front bedroom |
| E201SFB | 21' 0" | 3 | Front walk-around queen, rear bath, 72" rotating sofa — single slide |
| E201SBH | 21' 2" | 5 | Murphy bed + rear bunks, slide dinette — dual-axle family bunkhouse |
| E201RBS | 21' 2" | 2 | Rear bedroom on a bed slide, two 10K A/Cs — first E-Pro with a bed slide |
| E201SFK | 21' 2" | 4 | Front kitchen, rear bedroom, outside kitchen — dual-axle, heaviest profiled |
Every Flagstaff E-Pro plan uses complete composite (Azdel) wall construction over a 6-sided full-aluminum frame, with a vacuum-laminated fiberglass roof, aluminum floor joists and a high-gloss fiberglass cap — the same construction tier as Forest River’s r·pod and No Boundaries, a step above the metal-sided stick-and-tin value lines. The identity is off-grid and overlanding-focused: bigger nitrogen-filled off-road tires with TPMS, MORryde solid supported steps, Dexter Torflex torsion axles (the LE plans use leaf-spring axles), a Climate Protection Package with 12V heated tanks and radiant-foil insulation, and a standard roof-solar prep with a solar side port. A 12V refrigerator, a convection microwave, a 20,000-BTU furnace and a 13,500-BTU A/C are standard on the full-feature plans; the cost-friendly LE plans ship a leaf-spring chassis, a single battery and LP tank and a 10K A/C. An optional Power Package adds 600 watts of solar and a 3,000-watt inverter, and a Sunset Seeker Package adds an 1,800-watt inverter, frameless windows and the AIR 360+ antenna. E-Pro is badge-engineered with the Rockwood Geo Pro (the same trailers under two nameplates); the 2027 rosters are mechanically identical plan-for-plan, differing only in the code naming scheme (E-Pro’s longer E1xx/E2xx codes versus Geo Pro’s G-codes), so each plan cross-shops the matching Geo Pro code as the identical trailer. Lengths, weights and equipment change with options and model year — always confirm against the unit’s own weight sticker. Additional E-Pro floorplans are catalogued on the line hub.
04 Notes on this floorplan
The only LE plan with a slide
The E171SLE adds slide-out living space — a jackknife sofa on the slide — while staying on the value LE chassis, making it one of the lightest slide-equipped trailers available.
A true front queen, not a convertible bed
Unlike the Murphy-bed and dinette plans, the E171SLE has a real fixed front queen bed with wardrobes — a proper bedroom that needs no daily setup.
Generous cargo capacity for the size
A 1,396-lb cargo capacity over a 2,949-lb unloaded weight gives a couple a comfortable margin for full water and gear — among the healthiest payload ratios in the LE series.
LE trims the chassis and equipment
The LE Package uses leaf-spring axles instead of the line’s Torflex torsion axles, a single battery and LP tank, a 10K A/C and no Climate Protection heated-tank package.
A slide adds a maintenance point
The slide-out adds living space but also seals, a mechanism and a topper to maintain — something the no-slide LE plans avoid entirely.
05 How it compares
The identical trailer under the Rockwood Geo Pro nameplate — same weights, tanks and layout, differing only in the model code; cross-shop on dealer stock, badging and price.
A no-slide LE bunkhouse on the same 20-foot body — family bunks sleeping five instead of a queen-and-slide couples’ layout.
A full-feature single-slide couples’ plan with theater seating and the Torflex torsion chassis — more comfort and capability, trading the LE price.
A small Forest River laminate plan with a side-facing queen and a slide — a different compact slide layout in the aerodynamic r·pod shell.
06 Loading it for a trip
A full 31-gallon fresh tank is about 259 lb of water, 19% of the E171SLE’s 1,396 lb cargo capacity, leaving 1,137 lb (569 lb per rated berth). Across 12 Flagstaff E-Pro floorplans the water share runs 15% to 36%, and 8 give up more than this one. Nearest on that share: Flagstaff E-Pro E201SBH at 18% and Flagstaff E-Pro E201SFB at 19%.
07 Where this floorplan sits
Closest sibling: the Flagstaff E-Pro E191RLS, nearest on the published figures. It differs on 4 of the 8 fields both publish (this plan first): length 20 ft 0 in vs 20 ft 8 in; dry weight 2,949 lb vs 3,968 lb; cargo capacity 1,396 lb vs 1,029 lb; dry hitch weight 345 lb vs 430 lb. They match on sleeps, fresh tank, grey tank and black tank.
| Flagstaff E-Pro plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Dry weight (lb) | 2,949 | 5 of 12 | 1,779–4,213 |
| Cargo capacity (lb) | 1,396 | 10 of 12 | 782–1,451 |
| Dry hitch weight (lb) | 345 | 4–5 of 12 | 227–550 |
| Length | 20 ft 0 in | 4–7 of 12 | 14 ft 11 in–21 ft 2 in |
| Fresh tank (gal) | 31 | 2–11 of 12 | 18–34 |
| Grey tank (gal) | 27 | 3–11 of 12 | 6–42 |
| Black tank (gal) | 27 | 3–11 of 11 | 12–27 |
| Sleeps | 2 | 1–5 of 12 | 2–5 |
Either side of it by dry weight: Flagstaff E-Pro E171BLE is 130 lb lighter (2,819 lb dry); Flagstaff E-Pro E191FDT is 554 lb heavier (3,503 lb dry).
| Nearest Flagstaff E-Pro siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Flagstaff E-Pro E171SLE | 20 ft 0 in | 2 | 2,949 | — | 1,396 | 345 | 31 |
| Flagstaff E-Pro E191RLS | 20 ft 8 in | 2 | 3,968 | — | 1,029 | 430 | 31 |
| Flagstaff E-Pro E201RBS | 21 ft 2 in | 2 | 3,963 | — | 1,034 | 470 | 31 |
| Flagstaff E-Pro E201SFB | 21 ft 0 in | 3 | 3,793 | — | 1,342 | 435 | 31 |
| Flagstaff E-Pro E171BLE | 20 ft 0 in | 5 | 2,819 | — | 1,026 | 345 | 31 |
| Flagstaff E-Pro E191FDT | 20 ft 0 in | 3 | 3,503 | — | 902 | 405 | 31 |
All 12 Flagstaff E-Pro floorplans: Flagstaff E-Pro line hub.
| Other lines, nearest by dry weight | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| E171SLE | — | 2,949 | 2 | 20 ft 0 in |
| Rockwood Geo Pro G17SLE | — | 2,949 | 2 | 20 ft 0 in |
| Viking 16FB | 3,875 | 2,943 | — | 18 ft 6 in |
| Jay Flight 170FQW | 3,850 | 2,940 | 4 | 21 ft 5 in |
| Jay Flight SLX 174BH | 3,750 | 2,935 | — | 21 ft 6 in |
| Forest River r·pod RP-180 | — | 2,974 | 3 | 20 ft 0 in |
| Jay Feather 17RBSL | 3,750 | 2,920 | 4 | 21 ft 7 in |
Against the E171SLE: the Viking 16FB is 6 lb lighter and 2 ft shorter; the Jay Flight 170FQW is 9 lb lighter and 1 ft longer and sleeps 2 more.
08 Common questions about the E171SLE
How much can the E171SLE carry?
1,396 lb. A full fresh tank uses 259 lb of it.
What is the tongue weight of the E171SLE?
345 lb dry, 12% of the dry weight (median across 1,156 travel trailers here: 12%).
How many people does the E171SLE sleep?
It is rated to sleep 2. 7 of the 12 Flagstaff E-Pro floorplans that publish a count sleep more.
What are the tank capacities on the E171SLE?
Fresh 31, grey 27, black 27 gallons. Off hookups, fresh water runs out first.
How long is the E171SLE?
20' 0" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
16 of the 18 fields this catalogue tracks are published for the E171SLE. Not published: GVWR, interior height, tire size (a description is published, a size is not).
Values marked with an asterisk are arithmetic on published figures or come from a single source; the flag travels into the downloadable spec sheet.
Sourcing rules: methodology.
10 Manuals & documents
Sources: forestriverinc.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA files neither recalls nor complaints under the name Flagstaff E-Pro. That is a filing convention and not a clean record — the roster sits under the parent line, Rockwood & Flagstaff.
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 Rockwood & Flagstaff line page.