01 What makes it unique
Ember lists the 2027 E-Series 21FBE at 5,070 lb unloaded (UVW), with a GVWR of 6,795 lb, a cargo carrying capacity of 1,725 lb and a hitch weight of 580 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 25' 11" long and 11' 2" 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 7 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 21FBE, whose structured data names the model year 2027.
How the 21FBE differs from the other eleven E-Series floorplans. Most distinctive first. How these ranks are worked out.
- Cargo capacity, 1,725 lb: second-largest of twelve, between the 21RKE (1,720 lb) and the 25RUD (1,815 lb).
- Dry weight, 5,070 lb: sixth-heaviest of twelve, between the 21RKE (4,975 lb) and the 22MLQ (5,300 lb).
- GVWR, 6,795 lb: sixth-highest of twelve, between the 21RKE (6,695 lb) and the 22ETS and 22MLQ (6,995 lb).
- Cargo capacity as a share of GVWR, 25.4%: sixth-largest of twelve, between the 19ETS (25%) and the 21RKE (25.7%).
- Tongue weight, 580 lb: sixth-lightest of twelve, between the 18RBE (540 lb) and the 22MLQ (590 lb).
- Length, 25 ft 11 in: sixth-longest of twelve, between the 21RKE (25 ft 3 in) and the 22ETS and 22MLQ (27 ft 1 in).
- Tongue weight as a share of dry weight, 11.4%: shared with the 18FBE and 22ETS; of twelve, three smaller and six larger, nearest the 22MLQ (11.1%) and the 24RLD (11.5%).
Next to the 21RKE, the nearest lighter floorplan by dry weight, the 21FBE is 95 lb heavier by dry weight, has a GVWR 100 lb higher, has 5 lb more cargo capacity, has a tongue weight 45 lb heavier and is 8 in longer; the two publish the same exterior height, fresh tank, grey tank and black tank.
Next to the 22MLQ, the nearest heavier floorplan by dry weight, the 21FBE is 230 lb lighter by dry weight, has a GVWR 200 lb lower, has 30 lb more cargo capacity, has a tongue weight 10 lb lighter and is 1 ft 2 in shorter; the two publish the same exterior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 25' 11"
- Exterior height
- 11' 2" (with A/C)
- Exterior width
- 96"
- Interior height
- Not published by Ember
Weights
- Dry / unit base weight (UVW)
- 5,070 lb
- GVWR (max loaded)
- 6,795 lb
- Net cargo / payload (CCC)
- 1,725 lb
- Hitch / tongue weight
- 580 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
- 18'
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 (6,795 lb) and the upper loaded tongue estimate (1,019 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 21FBE
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
4,975 lb UVW and 6,695 lb GVWR, against this plan’s 5,070 lb and 6,795 lb.
5,300 lb UVW and 6,995 lb GVWR, against this plan’s 5,070 lb and 6,795 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), 26% of the 21FBE’s 1,725 lb cargo capacity, leaving 1,268 lb (317 lb per rated berth). Across 12 E-Series floorplans the water share runs 13% to 31%, and 8 give up more than this one. Nearest on that share: E-Series 25RUD at 25% and E-Series 21RKE at 27%. 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 21RKE, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 25 ft 11 in vs 25 ft 3 in; dry weight 5,070 lb vs 4,975 lb; GVWR 6,795 lb vs 6,695 lb; cargo capacity 1,725 lb vs 1,720 lb; hitch weight 580 lb vs 535 lb. They match on sleeps, fresh tank, grey tank and black tank.
| E-Series plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 6,795 | 7 of 12 | 3,450–7,595 |
| Dry weight (lb) | 5,070 | 7 of 12 | 1,740–6,130 |
| Cargo capacity (lb) | 1,725 | 11 of 12 | 1,450–1,815 |
| Hitch weight (lb) | 580 | 6 of 12 | 255–705 |
| Length | 25 ft 11 in | 7 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 21RKE is 100 lb lighter (6,695 lb GVWR); E-Series 22ETS is 200 lb heavier (6,995 lb GVWR).
| Nearest E-Series siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| E-Series 21FBE | 25 ft 11 in | 4 | 5,070 | 6,795 | 1,725 | 580 | 55 |
| E-Series 21RKE | 25 ft 3 in | 4 | 4,975 | 6,695 | 1,720 | 535 | 55 |
| E-Series 22MLQ | 27 ft 1 in | 4 | 5,300 | 6,995 | 1,695 | 590 | 55 |
| E-Series 18RBE | 21 ft 10 in | 4 | 4,175 | 5,690 | 1,515 | 540 | 55 |
| E-Series 22ETS | 27 ft 1 in | 8 | 5,375 | 6,995 | 1,620 | 615 | 55 |
| E-Series 18FBE | 21 ft 4 in | 4 | 4,130 | 5,580 | 1,450 | 470 | 55 |
All 12 E-Series floorplans: E-Series line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 21FBE | 6,795 | 5,070 | 4 | 25 ft 11 in |
| Jay Feather 25RLSL | 6,800 | 5,310 | 6 | 30 ft 1 in |
| Jay Flight 260BHW | 6,800 | 4,905 | 10 | 29 ft 5 in |
| Lance Travel Trailer 2075 | 6,800 | 4,425 | 4 | 25 ft 1 in |
| Aurora Light 22EPIC | 6,806 | 4,806 | — | 25 ft 11 in |
| Coachmen Catalina 221EPIC | 6,810 | 4,810 | 4 | 25 ft 11 in |
| Jay Flight SLX 244BHS | 6,750 | 5,535 | 8 | 28 ft 8 in |
Against the 21FBE: the Jay Feather 25RLSL is 5 lb heavier and 4 ft longer and sleeps 2 more; the Jay Flight 260BHW is 5 lb heavier and 4 ft longer and sleeps 6 more; the Lance Travel Trailer 2075 is 5 lb heavier.
08 Common questions about the 21FBE
How much does the 21FBE weigh?
5,070 lb dry; 6,795 lb GVWR, the most it may weigh loaded.
How much can the 21FBE carry?
1,725 lb, 25% 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 21FBE?
580 lb as published, 11% of the dry weight (median across 1,413 travel trailers here: 12%).
What size tow vehicle does the 21FBE need?
A tow rating of at least 6,795 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the 21FBE 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 21FBE?
Fresh 55, grey 35, black 35 gallons. Off hookups, fresh water runs out first.
How long is the 21FBE?
25' 11" 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 21FBE. 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.