01 What makes it unique
The Rockwood Ultra Lite 2621RB leaves Forest River's factory at 6,773 lbs dry with 1,767 lbs of cargo capacity. Forest River publishes no GVWR for this line, so the loaded rating is not quoted on this page and is not computed from the other two figures. What the cargo number covers is defined by the factory: fresh water, gear, food, batteries and every dealer-installed accessory come out of it. Fresh water is 8.3 lb per gallon, so filling the 54-gallon fresh tank spends 448 lbs of the 1,767 lbs before anything else goes in.
Sold as the Flagstaff Super Lite 26FBRB as well
Forest River builds this floorplan under two nameplates and gives it a different code on each: Rockwood Ultra Lite 2621RB and Flagstaff Super Lite 26FBRB are one trailer. The two badges share no floorplan codes at all, so a code from one will not be found on the other. Across the whole class the two rosters pair one-to-one on published dry weight, and on this plan the two factory records agree on 15 of the 15 published fields compared. The figures on this page are read from the Rockwood Ultra Lite record; where the Flagstaff Super Lite listing differs it is said so rather than averaged. The full code map is on the Rockwood & Flagstaff hub.
Tongue weight is 740 lbs, 11% of the dry weight as published; it rises as the trailer is loaded and counts against the tow vehicle’s tongue-weight and payload limits (tongue weight by size).
Off hookups: 135 gallons of grey and black capacity against 54 gallons of fresh water, so fresh water runs out first (tank sizes by length).
Against the rest of the Rockwood Ultra Lite roster this is the 5th of 17 floorplans by dry weight, in a line that runs from 6,048 lbs to 8,559 lbs. It sits in the lighter third of the line.
Plan the tow on loaded weight, not the 6,773 lbs dry figure: half the published cargo capacity brings this plan to about 7,657 lbs. Forest River publishes no loaded rating for this line, so the ceiling is the one on the trailer’s own weight label (how to read trailer weights).
Forest River’s line listing and this floorplan’s own factory page agree on all 4 shared figures. No GVWR is published for this line, so dry plus cargo has no rating to check against. A missing row means Forest River does not publish that figure (how figures are verified).
Forest River publishes no floorplan description for this plan in the channel this page is built from - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 2621RB is a Rockwood Ultra Lite designation and this site does not decode it into a layout claim.
How the 2621RB differs from the other sixteen Rockwood Ultra Lite floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2027). How these ranks are worked out.
- Exterior height, 11 ft 1 in: lowest of seventeen; next are the 2608BS, 2613BS and six others (11 ft 2 in).
- Tongue weight as a share of dry weight, 10.9%: second-smallest of seventeen, between the 2618RD (10.3%) and the 2916RL (11%).
- Tongue weight, 740 lb: third-lightest of seventeen, between the 301FKT (735 lb) and the 2614BS and 302RDT (796 lb).
- Dry weight, 6,773 lb: fifth-lightest of seventeen, between the 2613BS (6,614 lb) and the 2619FK (6,813 lb).
- Cargo capacity, 1,767 lb: fifth-smallest of seventeen, between the 2614BS (1,608 lb) and the 2619FK (1,812 lb).
- Length, 29 ft 8 in: shortest of seventeen, level with the 2608BS, 2619FK and 302RDT; next are the 2613BS, 2614BS and 2618RD (29 ft 9 in).
Next to the 2613BS (2022 page), the nearest lighter floorplan by dry weight, the 2621RB is 159 lb heavier by dry weight, has 334 lb less cargo capacity, has a tongue weight 175 lb lighter, is 1 in shorter and stands 1 in lower; the two publish the same fresh tank, grey tank and black tank.
Next to the 2619FK, the nearest heavier floorplan by dry weight, the 2621RB is 40 lb lighter by dry weight, has 45 lb less cargo capacity, has a tongue weight 85 lb lighter and stands 2 in lower; the two publish the same length, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 29' 8"
- Exterior height
- 11' 1"
- Exterior width
- 96"
Weights
- Dry / unit base weight (UVW)
- 6,773 lbs
- GVWR (max loaded)
- Not published by Forest River for this line
- Net cargo / payload (CCC)
- 1,767 lbs
- Hitch / tongue weight
- 740 lbs
Capacities
- Fresh water
- 54 gal
- Grey water
- 90 gal
- Black water
- 45 gal
Running gear
- Hitch type
- Bumper pull
- Axles
- Not published by Forest River
- Tires
- Not published by Forest River
Sleeping & layout
- Sleeps
- Not published by Forest River
- Awnings
- 20'
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 Rockwood Ultra Lite floorplan family
Dry weight across the eight profiled plans runs 6,048 to 8,348 lb and tongue weight runs 674 to 1,010 lb, so check the heavier end of this grouping against your hitch rating once the trailer is loaded. Cargo capacity runs 1,767 to 2,487 lb. The tank set is where the wide-body plans separate themselves: fresh water is 54 gallons on every plan and black is 45, but grey runs from 45 to 90 gallons, which is the difference between a long weekend and a week between dumps for the same fresh-water supply.
| Floorplan | Nominal | Dry weight (lb) | Cargo, CCC (lb) | Notable |
|---|---|---|---|---|
| 301FKT | 29' 10" | 6,048 | 2,487 | Ultra Lite Wide Body Travel Trailers |
| 302RDT | 29' 8" | 6,317 | 2,279 | Ultra Lite Wide Body Travel Trailers |
| 2618RD | 29' 9" | 6,554 | 1,920 | Ultra Lite Travel Trailers |
| 2621RB | 29' 8" | 6,773 | 1,767 | Ultra Lite Travel Trailers |
| 2619FK | 29' 8" | 6,813 | 1,812 | Ultra Lite Travel Trailers |
| 2608BS | 29' 8" | 6,876 | 1,826 | Ultra Lite Travel Trailers |
| 2623MBR | 29' 9" | 7,073 | 1,642 | Ultra Lite Travel Trailers · published specifications only |
| 2706BH | 32' 10" | 7,085 | 1,539 | Catalogued only · published figures disagree |
| 2711RK | 32' 11" | 7,703 | 2,102 | Ultra Lite Travel Trailers |
| 2921RL | 35' 4" | 8,143 | 1,820 | Ultra Lite Travel Trailers · published specifications only |
| 2916RL | 35' 4" | 8,348 | 2,151 | Ultra Lite Travel Trailers |
Ultra Lite is the larger of the two long-running Rockwood travel-trailer classes and the factory files it under two groupings, not one: Ultra Lite Travel Trailers and Ultra Lite Wide Body Travel Trailers. Eleven floorplans are published for 2027. Two of them, 2623MBR and 2921RL, publish no exterior height in this channel, so they are catalogued here and not profiled -- the missing field is stated rather than filled in from a sibling plan. Forest River publishes no GVWR for any Ultra Lite plan, so loaded rating reads as not published throughout. Seven of the eight plans profiled carry a factory floorplan description.
04 Notes on this floorplan
What Forest River does not publish for this line
Sleeping capacity, axle count, tire size and MSRP are not in Forest River’s specification channel for Rockwood Ultra Lite, so this page does not publish them and does not estimate them (how figures are verified).
There is no factory GVWR for this trailer
Forest River publishes dry weight, cargo capacity and tongue weight for every Rockwood Ultra Lite floorplan and publishes no GVWR for any of them. The factory's own glossary defines cargo capacity as GVWR minus UVW, which means the rating can be worked out - and a figure you worked out is not a figure the manufacturer published, so this page does not print one. Use the weight label on the trailer itself, which every Forest River unit carries.
Weigh it before you tow it
Forest River calls its unloaded weight an estimated average for a standard build, and options and dealer add-ons change it, so weigh your own trailer loaded the way you travel (how figures are verified).
05 How it compares
6,554 lbs dry against this plan's 6,773 lbs, a difference of 219 lbs.
6,813 lbs dry, 40 lbs more than this plan, and 1,812 lbs of cargo capacity against this one's 1,767 lbs.
2,487 lbs of cargo capacity, the highest of the 17 Rockwood Ultra Lite floorplans profiled here. If payload rather than length is the binding constraint, that is the plan to compare against.
06 Loading it for a trip
A full 54-gallon fresh tank is about 448 lb of water, 25% of the 2621RB’s 1,767 lb cargo capacity, leaving 1,319 lb. Across 17 Rockwood Ultra Lite floorplans the water share runs 18% to 33%, and 4 give up more than this one. Nearest on that share: Rockwood Ultra Lite 2619FK at 25% and Rockwood Ultra Lite 2614BS at 28%.
07 Where this floorplan sits
Closest sibling: the Rockwood Ultra Lite 2619FK, nearest on the published figures. It differs on 3 of the 7 fields both publish (this plan first): dry weight 6,773 lb vs 6,813 lb; cargo capacity 1,767 lb vs 1,812 lb; hitch weight 740 lb vs 825 lb. They match on length, fresh tank, grey tank and black tank.
| Rockwood Ultra Lite plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Dry weight (lb) | 6,773 | 5 of 17 | 6,048–8,559 |
| Cargo capacity (lb) | 1,767 | 5 of 17 | 1,341–2,487 |
| Hitch weight (lb) | 740 | 3 of 17 | 674–1,100 |
| Length | 29 ft 8 in | 1–4 of 17 | 29 ft 8 in–35 ft 5 in |
| Grey tank (gal) | 90 | 7–17 of 17 | 45–90 |
Either side of it by dry weight: Rockwood Ultra Lite 2613BS is 159 lb lighter (6,614 lb dry); Rockwood Ultra Lite 2619FK is 40 lb heavier (6,813 lb dry).
| Nearest Rockwood Ultra Lite siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Rockwood Ultra Lite 2621RB | 29 ft 8 in | — | 6,773 | — | 1,767 | 740 | 54 |
| Rockwood Ultra Lite 2619FK | 29 ft 8 in | — | 6,813 | — | 1,812 | 825 | 54 |
| Rockwood Ultra Lite 2614BS | 29 ft 9 in | — | 6,988 | — | 1,608 | 796 | 54 |
| Rockwood Ultra Lite 2608BS | 29 ft 8 in | — | 6,876 | — | 1,826 | 902 | 54 |
| Rockwood Ultra Lite 2613BS | 29 ft 9 in | — | 6,614 | — | 2,101 | 915 | 54 |
| Rockwood Ultra Lite 301FKT | 29 ft 10 in | — | 6,048 | — | 2,487 | 735 | 54 |
All 17 Rockwood Ultra Lite floorplans: Rockwood Ultra Lite line hub.
| Other lines, nearest by dry weight | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 2621RB | — | 6,773 | — | 29 ft 8 in |
| Coachmen Freedom Express Ultra Lite 292BHDS | 9,500 | 6,772 | 8 | 33 ft 4 in |
| Wildcat 271CHEF | 9,602 | 6,774 | — | 34 ft 5 in |
| Jay Flight 294QBS | 8,650 | 6,775 | 10 | 35 ft 7 in |
| Nightfall 22N | 11,375 | 6,758 | — | 28 ft 6 in |
| Vibe 2600RB | — | 6,758 | — | 32 ft 6 in |
| XLR Boost 2115B | — | 6,758 | — | 28 ft 6 in |
Against the 2621RB: the Coachmen Freedom Express Ultra Lite 292BHDS is 1 lb lighter and 4 ft longer; the Wildcat 271CHEF is 1 lb heavier and 5 ft longer; the Jay Flight 294QBS is 2 lb heavier and 6 ft longer.
08 Common questions about the 2621RB
How much can the 2621RB carry?
1,767 lb. A full fresh tank uses 448 lb of it.
What is the tongue weight of the 2621RB?
740 lb as published, 11% of the dry weight (median across 1,205 travel trailers here: 12%).
What are the tank capacities on the 2621RB?
Fresh 54, grey 90, black 45 gallons. Off hookups, fresh water runs out first.
How long is the 2621RB?
29' 8" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
10 of the 18 fields this catalogue tracks are published for the 2621RB. Not published: GVWR, interior height, sleeps, slide count, axle count, tire specification, 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 35 recall campaigns and 173 owner complaints (model years 2005 on) against the Rockwood & Flagstaff line (a recall and a complaint are not the same thing).
What to look at on a used one. Across the 173 complaints filed on this line the most-reported components are tires (22%), structure (17%) and wheels (17%).
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.