01 What makes it unique
Ember lists the 2027 E-Series 18FBE at 4,130 lb unloaded (UVW), with a GVWR of 5,580 lb, a cargo carrying capacity of 1,450 lb and a hitch weight of 470 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 21' 4" long and 11' 3" high with the air conditioner, with 55 gal fresh, 35 gal grey, 35 gal black. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 457 lb of the cargo capacity before anything else is loaded.
Among the 12 E-Series floorplans Ember lists for 2027 with a published weight, it is number 3 by unloaded weight, in a range from 1,740 lb (12RK) to 6,130 lb (26ETS). Every figure in that comparison is Ember’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from Ember’s own floorplan page for the E-Series 18FBE, whose structured data names the model year 2027.
How the 18FBE differs from the other eleven E-Series floorplans. Most distinctive first. How these ranks are worked out.
- Cargo capacity, 1,450 lb: smallest of twelve; next is the 26ETS (1,465 lb).
- Dry weight, 4,130 lb: third-lightest of twelve, between the 12FK (1,855 lb) and the 18RBE (4,175 lb).
- GVWR, 5,580 lb: third-lowest of twelve, between the 12FK (3,500 lb) and the 18RBE (5,690 lb).
- Tongue weight, 470 lb: third-lightest of twelve, between the 12FK (295 lb) and the 21RKE (535 lb).
- Length, 21 ft 4 in: third-shortest of twelve, between the 12FK and 12RK (15 ft 9 in) and the 18RBE (21 ft 10 in).
- Cargo capacity as a share of GVWR, 26%: fourth-largest of twelve, between the 21RKE (25.7%) and the 18RBE (26.6%).
- Exterior height, 11 ft 3 in: tallest of twelve, level with the 18RBE and 19ETS; next are the 21FBE, 21RKE and five others (11 ft 2 in).
- Tongue weight as a share of dry weight, 11.4%: shared with the 21FBE and 22ETS; of twelve, three smaller and six larger, nearest the 22MLQ (11.1%) and the 24RLD (11.5%).
Next to the 12FK, the nearest lighter floorplan by dry weight, the 18FBE is 2,275 lb heavier by dry weight, has a GVWR 2,080 lb higher, has 195 lb less cargo capacity, has a tongue weight 175 lb heavier, is 5 ft 7 in longer, stands 4 ft 3 in taller and has a fresh tank 29 gal larger.
Next to the 18RBE, the nearest heavier floorplan by dry weight, the 18FBE is 45 lb lighter by dry weight, has a GVWR 110 lb lower, has 65 lb less cargo capacity, has a tongue weight 70 lb lighter and is 6 in shorter; the two publish the same exterior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 21' 4"
- Exterior height
- 11' 3" (with A/C)
- Exterior width
- 96"
- Interior height
- Not published by Ember
Weights
- Dry / unit base weight (UVW)
- 4,130 lb
- GVWR (max loaded)
- 5,580 lb
- Net cargo / payload (CCC)
- 1,450 lb
- Hitch / tongue weight
- 470 lb
Capacities
- Fresh water
- 55 gal
- Grey water
- 35 gal
- Black water
- 35 gal
- Propane
- 40 lb
Running gear
- Hitch type
- Bumper pull
- Tire size
- 15"
Sleeping & layout
- Sleeps
- 2-4
- Awning
- 14'
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
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 (5,580 lb) and the upper loaded tongue estimate (837 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433).
03 The E-Series floorplan family
Ember lists 12 E-Series floorplans for 2027; this site profiles every one with a published weight, from Ember’s own floorplan pages.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 12RK | 15' 9" | 1-2 | Profiled |
| 12FK | 15' 9" | 2-3 | Profiled |
| 18FBE | 21' 4" | 2-4 | Profiled |
| 18RBE | 21' 10" | 2-4 | Profiled |
| 19ETS | 23' 4" | 5-8 | Profiled |
| 21RKE | 25' 3" | 2-4 | Profiled |
| 21FBE | 25' 11" | 2-4 | Profiled |
| 22MLQ | 27' 1" | 2-4 | Profiled |
| 22ETS | 27' 1" | 5-8 | Profiled |
| 24RLD | 28' 7" | 2-4 | Profiled |
| 25RUD | 30' 1" | 2-4 | Profiled |
| 26ETS | 31' 7" | 5-8 | Profiled |
Ember lists 12 E-Series floorplans. Every 2027 plan with a published weight has a page here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What Ember does not publish for the 18FBE
Ember’s page prints no axle count and no interior height against this floorplan, so none is given. Nothing is filled from a sibling floorplan, 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
1,855 lb UVW and 3,500 lb GVWR, against this plan’s 4,130 lb and 5,580 lb.
4,175 lb UVW and 5,690 lb GVWR, against this plan’s 4,130 lb and 5,580 lb.
06 Loading it for a trip
A full 55-gallon fresh tank is about 457 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 31% of the 18FBE’s 1,450 lb cargo capacity, leaving 994 lb (248 lb per rated berth). Across 12 E-Series floorplans the water share runs 13% to 31%, and this plan’s is the highest. Nearest on that share: E-Series 26ETS at 31%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).
07 Where this floorplan sits
Closest sibling: the E-Series 18RBE, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 21 ft 4 in vs 21 ft 10 in; dry weight 4,130 lb vs 4,175 lb; GVWR 5,580 lb vs 5,690 lb; cargo capacity 1,450 lb vs 1,515 lb; hitch weight 470 lb vs 540 lb. They match on sleeps, fresh tank, grey tank and black tank.
| E-Series plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 5,580 | 3 of 12 | 3,450–7,595 |
| Dry weight (lb) | 4,130 | 3 of 12 | 1,740–6,130 |
| Cargo capacity (lb) | 1,450 | 1 of 12 | 1,450–1,815 |
| Hitch weight (lb) | 470 | 3 of 12 | 255–705 |
| Length | 21 ft 4 in | 3 of 12 | 15 ft 9 in–31 ft 7 in |
| Fresh tank (gal) | 55 | 3–12 of 12 | 26–55 |
| Grey tank (gal) | 35 | 1–7 of 10 | 35–70 |
| Sleeps | 4 | 3–9 of 12 | 2–8 |
Either side of it by GVWR: E-Series 12FK is 2,080 lb lighter (3,500 lb GVWR); E-Series 18RBE is 110 lb heavier (5,690 lb GVWR).
| Nearest E-Series siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| E-Series 18FBE | 21 ft 4 in | 4 | 4,130 | 5,580 | 1,450 | 470 | 55 |
| E-Series 18RBE | 21 ft 10 in | 4 | 4,175 | 5,690 | 1,515 | 540 | 55 |
| E-Series 21RKE | 25 ft 3 in | 4 | 4,975 | 6,695 | 1,720 | 535 | 55 |
| E-Series 21FBE | 25 ft 11 in | 4 | 5,070 | 6,795 | 1,725 | 580 | 55 |
| E-Series 22MLQ | 27 ft 1 in | 4 | 5,300 | 6,995 | 1,695 | 590 | 55 |
| E-Series 19ETS | 23 ft 4 in | 8 | 4,495 | 5,995 | 1,500 | 615 | 55 |
All 12 E-Series floorplans: E-Series line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 18FBE | 5,580 | 4,130 | 4 | 21 ft 4 in |
| IBEX 16MRJ | 5,580 | 3,778 | — | 19 ft 10 in |
| Cherokee Wolf Pup Black Label 16CMBL | 5,578 | 4,056 | — | 23 ft 10 in |
| Cascade 18PBC | 5,575 | 4,459 | — | 23 ft 11 in |
| Campsite Reserve 18LM | 5,595 | 4,504 | — | 23 ft 9 in |
| Cherokee Grey Wolf 17TH | 5,595 | 4,748 | — | 27 ft 0 in |
| Jay Flight SLX 232RB | 5,600 | 4,260 | 6 | 27 ft 2 in |
Against the 18FBE: the IBEX 16MRJ is 2 ft shorter; the Cherokee Wolf Pup Black Label 16CMBL is 2 lb lighter and 2 ft longer; the Cascade 18PBC is 5 lb lighter and 3 ft longer.
08 Common questions about the 18FBE
How much does the 18FBE weigh?
4,130 lb dry; 5,580 lb GVWR, the most it may weigh loaded.
How much can the 18FBE carry?
1,450 lb, 26% of its GVWR (median across 1,010 travel trailers here: 23%). A full fresh tank uses 457 lb of it.
What is the tongue weight of the 18FBE?
470 lb as published, 11% of the dry weight (median across 1,413 travel trailers here: 12%).
What size tow vehicle does the 18FBE need?
A tow rating of at least 5,580 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the 18FBE sleep?
Its published sleeping capacity is 2–4. 3 of the 12 E-Series floorplans that publish a count sleep more.
What are the tank capacities on the 18FBE?
Fresh 55, grey 35, black 35 gallons. Off hookups, fresh water runs out first.
How long is the 18FBE?
21' 4" 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 18FBE. Not published: interior height, slide count, axle count, refrigerator, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: emberrv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 4 recall campaigns and 1 owner complaint (model years 2005 on) against the E-Series line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 1 complaint has been filed on this line — not enough to say what fails most often. It covers unknown or other.
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 E-Series line page.