01 What makes it unique
Forest River lists the 2026 No Boundaries NB18.1 at 3,019 lb dry, a net carrying capacity of 1,500 lb and a tongue weight of 305 lb. It prints no GVWR for it.
It is 14' 11" long and 10' 10" high. Forest River prints its tanks as 30 gal fresh, 30 gal grey, 30 gal black.
Every number on this page was read on 6 Nov 2026 from Forest River’s 2026 No Boundaries brochure (filed in Forest River’s 2026 brochure folder; the brochure prints no year); model year 2026 comes from where the maker files it on its own site, not from the document’s text.
How the NB18.1 differs from the other three No Boundaries floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 3,019 lb: second-heaviest of four, between the NB10.7 (2,274 lb) and the NB20.1 (4,983 lb).
- Tongue weight, 305 lb: second-heaviest of four, between the NB10.4 (285 lb) and the NB20.1 (650 lb).
- Tongue weight as a share of dry weight, 10.1%: second-smallest of four, between the NB10.7 (9.9%) and the NB20.1 (13%).
- Length, 14 ft 11 in: second-shortest of three, between the NB10.4 (13 ft 10 in) and the NB20.1 (24 ft 3 in).
- Exterior height, 10 ft 10 in: second-tallest of four, between the NB10.4 and NB10.7 (8 ft 6 in) and the NB20.1 (11 ft 3 in).
- Grey tank, 30 gal: second-largest of four, between the NB10.4 and NB10.7 (0 gal) and the NB20.1 (40 gal).
- Black tank, 30 gal: largest of four, level with the NB20.1; next are the NB10.4 and NB10.7 (0 gal).
- Cargo capacity, 1,500 lb: shared with the NB20.1; of four, one smaller and one larger, nearest the NB10.7 (1,451 lb) and the NB10.4 (1,606 lb).
Next to the NB10.7, the nearest lighter floorplan by dry weight, the NB18.1 is 745 lb heavier by dry weight, has 49 lb more cargo capacity, has a tongue weight 80 lb heavier, stands 2 ft 4 in taller, has a grey tank 30 gal larger and has a black tank 30 gal larger; the two publish the same fresh tank.
Next to the NB20.1, the nearest heavier floorplan by dry weight, the NB18.1 is 1,964 lb lighter by dry weight, has a tongue weight 345 lb lighter, is 9 ft 4 in shorter, stands 5 in lower, has a fresh tank 10 gal smaller and has a grey tank 10 gal smaller; the two publish the same cargo capacity and black tank.
02 Full specifications
Dimensions
- Exterior length
- 14' 11"
- Exterior height
- 10' 10"
- Exterior width
- 96"
- Interior height
- Not published by Forest River
Weights
- Dry / unit base weight (UVW)
- 3,019 lb
- GVWR (max loaded)
- Not published by Forest River
- Net cargo / payload (CCC)
- 1,500 lb
- Hitch / tongue weight
- 305 lb
Capacities
- Fresh water
- 30 gal
- Grey water
- 30 gal
- Black water
- 30 gal
Running gear
- Hitch type
- Bumper pull
- Tire size
- Not published by Forest River
Sleeping & layout
- Sleeps
- Not published by Forest River
- Table (as printed)
- NO BOUNDARIES SPECIFICATIONS / C-SERIES SPECIFICATIONS, row "18.1"
- GVWR
- not printed in this brochure
- Beast Mode package (as printed)
- Length 14' 11", Height 11' 2", Width 96", Hitch 450, UVW 3,439, CCC 1,500, Fresh 30 / Grey 30 / Black 30 gal
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
03 The No Boundaries floorplan family
The No Boundaries floorplans below were added from Forest River’s 2026 No Boundaries brochure (filed in Forest River’s 2026 brochure folder; the brochure prints no year); every No Boundaries floorplan on this site, every model year, is listed on the No Boundaries hub.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| No Boundaries NB10.4 | 13' 10" | — | Profiled |
| No Boundaries NB10.7 | — | — | Profiled |
| No Boundaries NB18.1 | 14' 11" | — | Profiled |
| No Boundaries NB20.1 | 24' 3" | — | Profiled |
The No Boundaries floorplans below were added from Forest River’s 2026 No Boundaries brochure (filed in Forest River’s 2026 brochure folder; the brochure prints no year); every No Boundaries floorplan on this site, every model year, is listed on the No Boundaries hub.
04 Notes on this floorplan
What Forest River does not publish for the No Boundaries NB18.1
Forest River prints no GVWR, tire size, interior height, sleeping capacity 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
2,274 lb dry and Not published by Forest River GVWR, against this model’s 3,019 lb and Not published by Forest River.
4,983 lb dry and Not published by Forest River GVWR, against this model’s 3,019 lb and Not published by Forest River.
06 Loading it for a trip
A full 30-gallon fresh tank is about 249 lb of water, 17% of the No Boundaries NB18.1’s 1,500 lb cargo capacity, leaving 1,251 lb. Across 4 No Boundaries floorplans the water share runs 16% to 22%, and 2 give up more than this one. Nearest on that share: No Boundaries NB10.4 at 16% and No Boundaries NB10.7 at 17%.
07 Where this floorplan sits
Closest sibling: the No Boundaries NB20.1, nearest on the published figures. It differs on 5 of the 7 fields both publish (this plan first): length 14 ft 11 in vs 24 ft 3 in; dry weight 3,019 lb vs 4,983 lb; hitch weight 305 lb vs 650 lb; fresh tank 30 gal vs 40 gal; grey tank 30 gal vs 40 gal. They match on cargo capacity and black tank.
| No Boundaries plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Dry weight (lb) | 3,019 | 3 of 4 | 2,179–4,983 |
| Cargo capacity (lb) | 1,500 | 2–3 of 4 | 1,451–1,606 |
| Hitch weight (lb) | 305 | 3 of 4 | 225–650 |
| Length | 14 ft 11 in | 2 of 3 | 13 ft 10 in–24 ft 3 in |
| Fresh tank (gal) | 30 | 1–3 of 4 | 30–40 |
| Grey tank (gal) | 30 | 3 of 4 | 0–40 |
| Black tank (gal) | 30 | 3–4 of 4 | 0–30 |
Either side of it by dry weight: No Boundaries NB10.7 is 745 lb lighter (2,274 lb dry); No Boundaries NB20.1 is 1,964 lb heavier (4,983 lb dry).
| Nearest No Boundaries siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| No Boundaries NB18.1 | 14 ft 11 in | — | 3,019 | — | 1,500 | 305 | 30 |
| No Boundaries NB20.1 | 24 ft 3 in | — | 4,983 | — | 1,500 | 650 | 40 |
| No Boundaries NB10.4 | 13 ft 10 in | — | 2,179 | — | 1,606 | 285 | 30 |
| No Boundaries NB10.7 | — | — | 2,274 | — | 1,451 | 225 | 30 |
All 4 No Boundaries floorplans: No Boundaries line hub.
| Other lines, nearest by dry weight | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| No Boundaries NB18.1 | — | 3,019 | — | 14 ft 11 in |
| Trail Runner 171BH | 3,886 | 3,016 | 6 | 20 ft 1 in |
| Coachmen Catalina Catalina Summit 7 154RDX | — | 3,015 | — | 19 ft 6 in |
| Hummingbird 17BH | 3,950 | 3,015 | 6 | 19 ft 10 in |
| Jay Flight 195RB | 3,995 | 3,015 | 4 | 21 ft 10 in |
| Jay Flight SLX 195RBW | 3,995 | 3,015 | 4 | 21 ft 10 in |
| IBEX 16RKB | 4,524 | 3,024 | — | 14 ft 11 in |
Against the No Boundaries NB18.1: the Trail Runner 171BH is 3 lb lighter and 5 ft longer; the Coachmen Catalina Catalina Summit 7 154RDX is 4 lb lighter and 5 ft longer; the Hummingbird 17BH is 4 lb lighter and 5 ft longer.
08 Common questions about the No Boundaries NB18.1
How much can the No Boundaries NB18.1 carry?
1,500 lb. A full fresh tank uses 249 lb of it.
What is the tongue weight of the No Boundaries NB18.1?
305 lb as published, 10% of the dry weight (median across 2,002 travel trailers here: 12%).
What are the tank capacities on the No Boundaries NB18.1?
Fresh 30, grey 30, black 30 gallons. Off hookups, fresh water runs out first.
How long is the No Boundaries NB18.1?
14' 11" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
9 of the 18 fields this catalogue tracks are published for the No Boundaries NB18.1. Not published: GVWR, interior height, sleeps, slide count, axle count, tire specification, awning, refrigerator, air conditioning.
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 holds 8 recall campaigns and 3 owner complaints (model years 2005 on) against the Forest River No Boundaries line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 3 complaints have been filed on this line — not enough to say what fails most often. They cover equipment, structure 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 Forest River No Boundaries line page.