2027 Forest River Rockwood Ultra Lite / Flagstaff Super Lite2618RD

The Rockwood Ultra Lite 2618RD leaves Forest River's factory at 6,554 lbs dry with 1,920 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 1,920 lbs before anything else goes in.

Dry tongue weight is 674 lbs, or 10% 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, 45 grey and 45 black, 90 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 Ultra Lite roster this is the 3rd of 11 floorplans by dry weight, in a line that runs from 6,048 lbs to 8,348 lbs. It sits in the lighter 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 6,554 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 7,514 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: “The 2618RD features a front bedroom with a true queen bed and wardrobe slide. Two entry doors provide easy access to the bedroom, large pass-through bathroom, and kitchen even when slides are in. The rear U-shaped dinette and 67" theater seat create a spacious, comfortable living area, making the 2618RD perfect for couples or small families.” 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.

Ultra Lite is where the Rockwood range stops being a half-ton question. Dry weight across the eight profiled plans runs 6,048 to 8,348 lb and dry tongue weight runs 674 to 1,010 lb, so the heavier end of this grouping asks for more tongue capacity than many half-ton hitches are rated for 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.

This floorplan carries its water comfortably. A full 54-gallon fresh tank is roughly 23% of the 1,920-pound cargo capacity, leaving the 2618RD with a usable gear budget even when you tow full.

The published dry tongue weight of 674 pounds is 10% of the 6,554-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 45 grey and 45 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by dry weight, the 2618RD sits 3 of 8 in the Rockwood Ultra Lite line: 6,554 pounds against a line that runs from 6,048 to 8,348 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 Ultra Lite 302RDT is 237 pounds lighter at 6,317 lb dry; and Rockwood Ultra Lite 2621RB is 219 pounds heavier at 6,773 lb dry.

Against the 2618RD: the Puma Camping Edition 303BHCE is 6 lb lighter and 4 ft longer; the Forest River No Boundaries NB20.6 is 9 lb heavier; the Minnie 2529RG is 14 lb lighter. 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 Ultra Lite floorplans profiled here run 6,048 to 8,348 pounds dry and 30 to 35 feet of exterior length across 8 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 Ultra Lite line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 10 of them for the 2618RD. 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.