01 What makes it unique
The Rockwood Signature Fifth Wheels 402SFL leaves Forest River's factory at 11,989 lbs dry with 2,156 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 2,156 lbs before anything else goes in.
Dry pin weight is 2,145 lbs, which is 18% of the dry weight. That figure lands on the truck's rear axle and comes straight off its payload rating - not its towing rating, which is the number most often quoted and the wrong one for this decision. Pin weight rises as the trailer is loaded, and a fifth wheel loaded toward its cargo capacity will put substantially more than 2,145 lbs over the bed. Read the payload figure on your own door sticker rather than a brochure maximum for the model.
Tank capacities are 54 gallons fresh, 131 grey and 53 black, 184 gallons of waste capacity against 54 gallons of supply. The ratio is what governs how long the trailer can sit off hookups: waste capacity exceeds fresh, so the fresh tank is the binding constraint and refilling extends the stay. Forest River publishes these three figures per floorplan, and they are the factory's numbers rather than a segment average.
Against the rest of the Rockwood Signature Fifth Wheels roster this is the 10th of 11 floorplans by dry weight, in a line that runs from 7,523 lbs to 12,824 lbs. It sits in the heavier third of the line. Comparing floorplans inside one line is more reliable than comparing across brands, because every figure here comes from the same factory channel on the same day.
A useful way to read these figures is to stop planning against the dry weight. Nobody tows a trailer at 11,989 lbs: that is the weight before water, batteries, propane, bedding, food, tools and anything the dealer bolted on. Load half the published cargo capacity and this plan is already near 13,067 lbs on the road. Because Forest River publishes no loaded rating for this line, the ceiling has to come from the trailer's own weight label rather than from this page, and the comparison you make against the tow vehicle should use the loaded figure.
Every number above was captured twice from Forest River and checked against itself before it was published. The line roster block and the individual floorplan page are two separate factory renderings of the same trailer, and this plan's 4 shared figures agree exactly on both. There is no published GVWR on this line, so the usual arithmetic check - dry plus cargo equals the rating - has nothing to test against here. Where a figure is missing from this page it is because Forest River does not publish it in this channel, not because it was hard to find - and the row says so rather than being quietly dropped.
Forest River's own description of this floorplan reads: “A premium front-living fifth wheel with superior construction and residential comforts. This 40' coach features five slides, a spacious front living area with Televator TV and theater seating, a central kitchen with massive island, king-size bedroom, cozy bath, dual awnings. travel farther stay longer and camp in true comfort!” That is the factory's marketing copy rather than a specification, and nothing in it is treated as a verified field on this page - layout descriptions, sleeping arrangements and feature claims in factory copy are not carried into the spec table unless the factory also publishes them as specifications.
02 Full specifications
Dimensions
- Exterior length
- 40' 0"
- Exterior height
- 13' 5"
- Exterior width
- 96"
Weights
- Dry / unit base weight (UVW)
- 11,989 lbs
- GVWR (max loaded)
- Not published by Forest River for this line
- Net cargo / payload (CCC)
- 2,156 lbs
- Dry pin weight
- 2,145 lbs
Capacities
- Fresh water
- 54 gal
- Grey water
- 131 gal
- Black water
- 53 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Axles
- Not published by Forest River
- Tires
- Not published by Forest River
Sleeping & layout
- Sleeps
- Not published by Forest River
- Awnings
- 9' & 16'
Verified specs, drawn to scale
Original graphics built from this floorplan’s own verified figures.
Size, drawn to scale
Holding tanks
These graphics are generated from the same verified record that builds the table above, and are published under this site’s own licence — nothing here is traced from, or derived from, a manufacturer drawing or photo. Where a figure is not published for this plan, the graphic that would need it is omitted rather than estimated. The full record is in the published dataset.
03 The Rockwood Signature Fifth Wheels floorplan family
Signature is where Rockwood stops being a bumper-pull range. Across the ten plans profiled here dry weight runs 7,733 to 12,824 lb and dry pin weight runs 1,280 to 2,205 lb, which is a payload question before it is a towing one -- pin weight lands on the truck's rear axle, and the heavier plans ask for more of it than most half-ton payload ratings have left once passengers and a hitch are in. Pin sits in a tight band of 16.6 to 19.3 percent of dry weight across the whole roster, so the grouping scales predictably rather than hiding a nose-heavy outlier. Cargo capacity runs 1,461 to 2,674 lb and does not track size: the heaviest plan carries the most, but the second-least accommodating plan is a mid-weight one, so the spread is worth reading per plan rather than by length. Fresh water is 54 gallons on every plan in the roster; grey runs 78 to 131 gallons and black 39 to 92, so waste capacity is the variable that separates these plans off-grid, not fresh.
| Floorplan | Nominal | Sleeps | Notable | |
|---|---|---|---|---|
| 301SRK | 31' 8" | 7,523 | 7,523 | Catalogued only · published figures disagree |
| 281SRK | 29' 4" | 7,733 | 2,142 | Signature Traveler Series Fifth Wheels |
| 290SFK | 29' 10" | 8,764 | 2,134 | Signature Fifth Wheels |
| R374DBH | 36' 10" | 9,661 | 2,084 | Signature Fifth Wheels |
| R371RK | 36' 10" | 10,350 | 2,051 | Signature Fifth Wheels |
| R361RLS | 36' 10" | 10,601 | 1,730 | Signature Fifth Wheels |
| R372RL | 36' 10" | 10,844 | 1,461 | Signature Fifth Wheels |
| 401SFB | 40' 0" | 11,460 | 2,036 | Signature Fifth Wheels |
| 404SRK | 41' 5" | 11,804 | 2,401 | Signature Fifth Wheels |
| 402SFL | 40' 0" | 11,989 | 2,156 | Signature Fifth Wheels |
| 403SDB | 41' 5" | 12,824 | 2,674 | Signature Fifth Wheels |
Signature is the only Rockwood grouping built as a fifth wheel, and Forest River publishes eleven floorplans for 2027 under two headings: nine as Signature Fifth Wheels and two as Signature Traveler Series Fifth Wheels, the shorter and lighter pair. Every plan in the roster publishes dry weight, cargo capacity, dry pin weight, all three exterior dimensions and all three tank capacities, and every plan carries a factory floorplan description. No plan publishes a GVWR, so loaded rating is shown as not published throughout and is never derived from dry weight plus cargo capacity. Sleeping capacity, axle count, tire size and MSRP are not published in this channel either, and are absent rather than estimated. Ten of the eleven plans are profiled here. The eleventh, 301SRK, is catalogued weights-only: Forest River publishes its cargo capacity as 7,523 lb, which is the same figure to the pound as that plan's own published dry weight, against a range of 13.5 to 20.9 percent of dry weight everywhere else in the roster. This site publishes that conflict rather than resolving it, and does not restate the figure as a cargo capacity.
04 What owners & reviewers report
What Forest River does not publish for this line
Sleeping capacity, axle count, tire size and MSRP are absent from Forest River's specification channel for Rockwood Signature Fifth Wheels, so they are absent here. They are not estimated from the segment, not carried over from a sibling floorplan, and not taken from a dealer listing quoting itself. A tire size in particular is a safety-relevant number that differs between two codes a digit apart, and this site does not guess one.
There is no factory GVWR for this trailer
Forest River publishes dry weight, cargo capacity and dry pin weight for every Rockwood Signature Fifth Wheels 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
Every figure on this page is a factory publication for a standard build. Forest River's own footnote on unloaded weight calls it an estimated average based on a standard build with optional equipment, and options, dealer-installed accessories and the previous owner's additions all move it. The only weight that governs your towing decision is the one under your own trailer on a scale, loaded the way you actually travel.
05 How it compares
11,804 lbs dry against this plan's 11,989 lbs, a difference of 185 lbs. Same line, same factory channel, same model year - so the gap is a real one rather than a difference in how two brands measure.
12,824 lbs dry, 835 lbs more than this plan, and 2,674 lbs of cargo capacity against this one's 2,156 lbs. Stepping up a floorplan usually buys length before it buys payload.
2,674 lbs of cargo capacity, the highest of the 10 Rockwood Signature Fifth Wheels 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
This floorplan carries its water comfortably. A full 54-gallon fresh tank is roughly 21% of the 2,156-pound cargo capacity, leaving the 402SFL with a usable gear budget even when you tow full.
| Weight budget | Figure | What it means |
|---|---|---|
| Cargo capacity as published (CCC) | 2,156 lb | Everything you add: gear, water, propane, batteries, food, people’s belongings. |
| Fresh tank filled (54 gal × 8.34 lb) | −450 lb | Water is the heaviest thing most owners add, and it is added first. |
| Cargo budget left with a full fresh tank | 1,706 lb | 21% of this plan’s capacity is spent before a single bag is loaded. |
The published dry pin weight of 2,145 pounds is 18% of this floorplan’s 11,989-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.
Tank balance is generous here: 54 gallons of fresh against 131 grey and 53 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.
07 Where this floorplan sits
Ranked by dry weight, the 402SFL sits 9 of 10 in the Rockwood Signature Fifth Wheels line: 11,989 pounds against a line that runs from 7,733 to 12,824 pounds. That position is the useful thing to know, because the plans immediately either side of it are the real alternatives.
Either side of it in the same line: Rockwood Signature Fifth Wheels 404SRK is 185 pounds lighter at 11,804 lb dry; and Rockwood Signature Fifth Wheels 403SDB is 835 pounds heavier at 12,824 lb dry.
| Comparable fifth wheels | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 402SFL | — | 11,989 | — | 40 ft 0 in |
| Model Z 2900 | 14,995 | 11,985 | 5 | 32 ft 11 in |
| Eagle 370FBTS | 14,300 | 12,020 | 4 | 40 ft 10 in |
| Cardinal 35CRIB | 14,305 | 11,953 | — | 42 ft 8 in |
| Wildcat 35CRIB | 14,305 | 11,953 | 8 | 42 ft 8 in |
| Sabre 33RLP | 14,695 | 11,948 | 4 | 39 ft 5 in |
| Ahara 297MK | — | 12,064 | — | 34 ft 5 in |
Against the 402SFL: the Model Z 2900 is 4 lb lighter and 7 ft shorter; the Eagle 370FBTS is 31 lb heavier; the Cardinal 35CRIB is 36 lb lighter and 3 ft longer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.
Those are the nearest fifth wheels from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.
For scale, the Rockwood Signature Fifth Wheels floorplans profiled here run 7,733 to 12,824 pounds dry and 29 to 41 feet of exterior length across 10 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.
Every profiled floorplan in this line, with the full weight table, is on the Rockwood Signature Fifth Wheels line hub.
08 Common questions about the 402SFL
How much can the 402SFL carry?
Cargo carrying capacity is 2,156 pounds. That is the whole budget: water, propane, batteries, gear and everything you bring. Filling the 54-gallon fresh tank uses about 450 pounds of that.
What is the pin weight of the 402SFL?
The published dry pin weight is 2,145 pounds. It is measured empty; loaded, it runs higher, and it comes out of your tow vehicle’s payload rather than its tow rating.
What are the tank capacities on the 402SFL?
Fresh 54 gallons, grey 131 gallons, black 53 gallons. Tank sizes set how long the floorplan can sit away from hookups, and the smallest of the three is what ends the stay.
How long is the 402SFL?
Exterior length is 40' 0". Measure against your site length and your storage before committing — the exterior figure is the one that has to fit, and it includes the tongue or pin box.
Every figure in these answers is read from this page’s verified specification table. Where the manufacturer publishes nothing, the question is not answered rather than estimated.
09 What this page publishes, and what it does not
This catalog tracks 18 specification fields per floorplan. Named sources publish 10 of them for the 402SFL. The rest are not shown, because the alternative is reading a figure across from a sibling floorplan or from what the segment usually does — and a number nobody published is worth less than an admitted gap.
Not published for this floorplan: GVWR, interior height, sleeps, slide count, axle count, tire specification, refrigerator, air conditioning. If you find one of these in a manufacturer document for this plan, it belongs on this page.
The completeness figure at the foot of this page (83%) measures the same thing on the full field set: it is a measurement of how much this floorplan’s manufacturer publishes, not of how much research went into the page.
How every figure here was sourced and checked is set out on the methodology page.
10 Manuals & documents
11 NHTSA safety record
This floorplan belongs to the Rockwood & Flagstaff line, and NHTSA holds 35 recall campaigns and 209 owner complaints against that line. They are separate records and are not added together — a recall is a manufacturer-confirmed defect with a remedy; a complaint is one owner’s account, which NHTSA does not verify.
What to look at on a used one. Across the 209 complaints filed on this line the most-reported components are tires (24%), structure (15%) and wheels (14%). That is where owners of this family have had trouble, so it is where an inspection is worth the time.
Recall coverage is not complete — our harvest of NHTSA’s recall API ran 1,556 queries, of which 0 failed and 242 returned an explicit zero. A line can still be under-reported where NHTSA files a roster under a parent name, or where a match rests on the wording of the recall rather than its model field. Complaints come from the complete bulk file but are unverified and self-selected: a high count tracks how many units a line sold at least as much as how well it was built. Check a specific VIN at NHTSA before you buy. Full tables are on the Rockwood & Flagstaff line page.