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Expandable Travel Trailer · Twin-Badge Roster · Factory Brochure Record

2022 Forest River Rockwood Roo / Flagstaff Shamrock183

a 21-foot travel trailer that leaves the factory at 4,259 lbs dry and is rated to carry 1,471 lbs of cargo.

Tow-Critical Data — as built, MY2022

4,259lb
Dry Weight
1,471lb
Cargo Capacity
450lb
Tongue Weight
21ft
Length
1,471 lb cargo Travel Trailer · Travel Trailers Built by · Forest River Model year · 2022

01 What makes it unique

The Rockwood Roo 183 leaves Forest River's factory at 4,259 lbs dry with 1,471 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 1,471 lbs before anything else goes in.

Dry tongue weight is 450 lbs, or 11% of the dry weight. Ten to fifteen percent is the conventional band for a bumper-pull trailer, and this plan sits inside it as published. Tongue weight is not fixed: it moves with how the trailer is loaded, and weight added ahead of the axles raises it. A weight-distribution hitch is the normal fitment at this tongue load, and the tow vehicle's tongue-weight limit is a separate number from its trailer-weight limit.

Tank capacities are 54 gallons fresh, 30 grey and 30 black, 60 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 Roo roster this is the 1st of 5 floorplans by dry weight, in a line that runs from 4,259 lbs to 5,639 lbs. It is the lightest plan in the line, which makes it the one to look at first if the tow vehicle is the constraint. 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 4,259 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 4,995 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 read from one factory document: Forest River's own 2022 brochure for this line, and each figure was read back against that document's text before it was published. This is a single-channel record rather than the two-rendering cross-check this site runs on factory web captures, and it is described that way rather than dressed up as more. The brochure publishes no GVWR for this line, so the loaded rating is shown as not published and is never computed from dry weight plus cargo capacity. Where a figure is missing from this page it is because the brochure does not publish it, not because it was hard to find - and the row says so rather than being quietly dropped.

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. 183 is a Rockwood Roo designation and this site does not decode it into a layout claim.

02 Full specifications

Dimensions

Exterior length
21' 2"
Exterior height
10' 6"
Exterior width
8'

Weights

Dry / unit base weight (UVW)
4,259 lbs
GVWR (max loaded)
Not published by Forest River for this line
Net cargo / payload (CCC)
1,471 lbs
Dry tongue (hitch) weight
450 lbs

Capacities

Fresh water
54 gal
Grey water
30 gal
Black water
30 gal

Running gear

Hitch type
Bumper pull (weight-distribution recommended)
Axles
Not published by Forest River
Tires
Not published by Forest River

Sleeping & layout

Sleeps
Not published by Forest River
Awnings
Not published by Forest River

Verified specs, drawn to scale

Original graphics built from this floorplan’s own verified figures.

Size, drawn to scale

Scale outline of the 183Scale outline of the 183. Overall length 21' 2", overall height 10' 6", overall width 8' 0".end view8' 0"21' 2" overall length10' 6"
Overall length and height are drawn true to scale from the published figures, and the end view uses the same scale. Axle count is as published; axle position, wheel size and the nose profile are schematic. This is a size drawing, not a floorplan, and not a claim about body shape.

Holding tanks

Holding tank capacities for the 183Holding tank capacities: fresh 54 gallons, grey 30 gallons, black 30 gallons.Fresh54 galGrey30 galBlack30 gal
Published tank capacities on one scale. A full fresh tank is about 450 lbs of water — roughly 31% of this plan’s 1,471 lb cargo capacity, before you load anything else.

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 Roo floorplan family

Roo is the lightest thing in the Rockwood travel-trailer range and the only part of it that folds. Dry weight runs 4,259 to 5,639 lb and dry tongue weight runs 434 to 738 lb, which puts the whole roster inside what a mid-size SUV or a half-ton truck is normally rated to pull. Cargo capacity runs 1,259 to 1,541 lb and it moves against dry weight rather than with it - the heaviest plan on the roster carries the least. Fresh water is 54 gallons and both waste tanks are 30 gallons on every plan. Travel length runs 21 ft 2 in to 24 ft 10 in; the fold-out ends add roughly four to five feet of sleeping space that does not exist while the trailer is moving, which is the whole point of the class and is not a weight the spec table can show you.

FloorplanNominalSleepsNotable
18321' 2"4,2591,471Travel Trailers
1922'4,2981,416Travel Trailers
21SS22' 10"5,0951,461Travel Trailers
233S24' 10"5,1111,541Travel Trailers
235S24' 10"5,6391,259Travel Trailers

Roo is Rockwood's expandable class - a hard-sided trailer with fold-out bed ends, which is why the brochure publishes both a travel length and an open length for every plan. The same five trailers are sold as the Flagstaff Shamrock, and on this roster the two badges use the SAME floorplan codes: a Roo 233S and a Shamrock 233S are one trailer, identical on dry weight, hitch weight, cargo capacity, dimensions and all three tanks. This site publishes them as one line carrying both badges rather than as two sets of identical pages. Forest River publishes no GVWR for this line, so the loaded rating is shown as not published and is never computed from dry weight plus cargo capacity. These figures come from one factory document rather than from the two separate factory renderings this site cross-reads on Forest River's web channel, and every figure was read back against that document's own text before publication. Sleeping capacity, axle count, tire size and MSRP are not published in the brochure and are absent here rather than estimated.

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 Roo, 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 tongue weight for every Rockwood Roo 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.

Awning size is not published for this floorplan

Forest River publishes an awning size for some Rockwood Roo floorplans and not for this one. The row reads as unpublished rather than being filled from a neighbouring plan in the same roster.

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.

SOURCING — ownership notes to be expanded with cited threads from owner communities & forums per the data plan

05 How it compares

Heavier
Rockwood Roo 19

4,298 lbs dry, 39 lbs more than this plan, and 1,416 lbs of cargo capacity against this one's 1,471 lbs. Stepping up a floorplan usually buys length before it buys payload.

Most cargo in the line
Rockwood Roo 233S

1,541 lbs of cargo capacity, the highest of the 5 Rockwood Roo 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

Fresh water is the single biggest line in this floorplan’s load plan. A full 54-gallon tank is about 31% of the 1,471-pound cargo capacity — enough that whether you tow with water aboard is a real decision on the 183 rather than a detail.

Weight budgetFigureWhat it means
Cargo capacity as published (CCC)1,471 lbEverything you add: gear, water, propane, batteries, food, people’s belongings.
Fresh tank filled (54 gal × 8.34 lb)−450 lbWater is the heaviest thing most owners add, and it is added first.
Cargo budget left with a full fresh tank1,021 lb31% of this plan’s capacity is spent before a single bag is loaded.

The published dry tongue weight of 450 pounds is 11% of the 4,259-pound dry weight, which sits inside the 10–15% band usually quoted for stable towing. It is still a dry figure: loading the front pass-through and the fresh tank both push it up.

Tank balance is generous here: 54 gallons of fresh against 30 grey and 30 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

Of the 6 Rockwood Roo floorplans profiled here, the 183 is the lightest by dry weight at 4,259 pounds — the entry point to the line and the one most likely to suit a vehicle already at its limit.

Either side of it in the same line: Rockwood Roo 19 is 39 pounds heavier at 4,298 lb dry.

Comparable travel trailersGVWR (lb)Dry (lb)SleepsLength
183—4,259—21 ft 2 in
Jay Flight SLX 210QB6,0004,260425 ft 8 in
Jay Flight 211MBW6,3004,265824 ft 6 in
Ozark 1680BSK5,6554,269—23 ft 2 in
Alta 1800MBH-LE—4,284—24 ft 0 in
Cascade 17SCC5,5404,289—23 ft 11 in
Micro Minnie 2108DS5,5004,291322 ft 5 in

Against the 183: the Jay Flight SLX 210QB is 1 lb heavier and 4 ft longer; the Jay Flight 211MBW is 6 lb heavier and 3 ft longer; the Ozark 1680BSK is 10 lb heavier and 2 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 travel trailers 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 Roo floorplans profiled here run 4,259 to 5,639 pounds dry and 21 to 25 feet of exterior length across 6 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 Roo line hub.

08 Common questions about the 183

How much can the 183 carry?

Cargo carrying capacity is 1,471 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 tongue weight of the 183?

The published dry tongue weight is 450 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 183?

Fresh 54 gallons, grey 30 gallons, black 30 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 183?

Exterior length is 21' 2". 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 9 of them for the 183. 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, awning, 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 (75%) 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.

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.