2026 Forest River Aurora31KDS

The Aurora 31KDS leaves Forest River's factory at 7,743 lbs dry, with a published GVWR of 10,000 lbs and 2,257 lbs of cargo capacity between the two. Cargo capacity is 23% of the loaded rating, and Forest River's own definition is worth reading before you plan against it: cargo capacity is what remains for fresh water, gear, food, batteries and every dealer-installed accessory. Fresh water alone is 8.3 lb per gallon, so filling this trailer's 44-gallon fresh tank spends 365 lbs of that 2,257 lbs before anything else is loaded.

Dry tongue weight is 1,042 lbs, or 13% 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 44 gallons fresh, 70 grey and 30 black, 100 gallons of waste capacity against 44 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 Aurora roster this is the 6th of 11 floorplans by dry weight, in a line that runs from 6,468 lbs to 9,152 lbs. It sits in the middle of the line by weight. 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 the pair of weights is to stop planning against the dry figure. Nobody tows a trailer at 7,743 lbs: that is the weight before water, batteries, propane, bedding, food, tools and anything the dealer bolted on. Load half the published cargo capacity, which is modest for a family trip, and this plan is already near 8,871 lbs on the road. Compare that number against the tow vehicle, not the dry weight, and leave margin on top of it - the published GVWR of 10,000 lbs is a limit rather than a target.

Every number above was captured twice from Forest River and checked against itself before it was published. The line listing 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. Dry weight plus cargo capacity also equals the published GVWR exactly, which is the arithmetic check this site runs on every profiled floorplan. 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: “Designed for outdoor enthusiasts seeking comfort and space. Dual slides create a roomy interior with a front private bedroom and ample storage. A 21-foot awning expands your outdoor living area for relaxing evenings at the campsite.” 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.

Three Aurora floorplans the factory publishes for 2026 that this catalogue did not carry, all of them at the long end of the roster: 7,124 to 8,154 lb dry on lengths of 33 feet 7 inches to 36 feet 3 inches, with dry tongue weights of 888 to 1,054 lb. Forest River publishes a GVWR for all three and dry weight plus cargo capacity equals it exactly on all three.

A full 44-gallon fresh tank is about 367 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 16% of the 31KDS’s 2,257 lb cargo capacity, leaving 1,890 lb. Across 9 Aurora floorplans the water share runs 16% to 24%, and 4 give up more than this one. Nearest on that share: Aurora 24RBS at 16% and Aurora 29TQS at 16%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).

Closest sibling: the Aurora 29TQS, nearest on the published figures. It differs on 8 of the 8 fields both publish (this plan first): length 36 ft 3 in vs 36 ft 0 in; dry weight 7,743 lb vs 7,892 lb; GVWR 10,000 lb vs 9,824 lb; cargo capacity 2,257 lb vs 1,932 lb; dry hitch weight 1,042 lb vs 1,024 lb; fresh tank 44 gal vs 38 gal; grey tank 70 gal vs 59 gal; black tank 30 gal vs 28 gal.

Either side of it by GVWR: Aurora 29TQS is 176 lb lighter (9,824 lb GVWR); Aurora 32RLTS is 342 lb heavier (10,342 lb GVWR).

All 9 Aurora floorplans: Aurora line hub.

Against the 31KDS: the Classic 30RB is 5 ft shorter; the Campsite Reserve 29TJ is 5 lb lighter; the Cascade 29TEC is 5 lb lighter.

11 of the 18 fields this catalogue tracks are published for the 31KDS. Not published: interior height, sleeps, slide count, axle count, tire specification, refrigerator, air conditioning.

Sourcing rules: methodology.