2026 Forest River Campsite Reserve39JD

The Campsite Reserve 39JD has 1,020 lbs of cargo capacity between 12,380 lbs dry and its 13,400 lbs GVWR, 8% of that rating; filling its 40-gallon fresh tank at 8.3 lb a gallon uses 332 lbs of it (how to read trailer weights).

Tongue weight is 1,400 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: 160 gallons of grey and black capacity against 40 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Campsite Reserve roster this is the 22nd of 22 floorplans by dry weight, in a line that runs from 3,764 lbs to 12,380 lbs. It is the heaviest plan in the line, so the tow vehicle should be settled before the floorplan is.

Plan the tow on loaded weight, not the 12,380 lbs dry figure: half the published cargo capacity brings this plan to about 12,890 lbs, and the published GVWR of 13,400 lbs is the limit (how to read trailer weights).

Forest River’s line listing and this floorplan’s own factory page agree on all 4 shared figures. Dry weight plus cargo capacity equals the published GVWR exactly. A missing row means Forest River does not publish that figure (how figures are verified).

Forest River's own description of this floorplan reads: “The first destination trailer in the Campsite Reserve brand is finally here! This unique model was designed with a sliding glass door and L-shaped sectional that make the living room feel truly expansive. This model is also highlighted by 2 queen beds and a king size bed in the primary suite.” 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.

How the 39JD differs from the other 21 Campsite Reserve floorplans. Most distinctive first. How these ranks are worked out.

• Dry weight, 12,380 lb: heaviest of 22; next is the 39LA (12,194 lb).
• Cargo capacity, 1,020 lb: smallest of 22; next is the 18LM (1,091 lb).
• Cargo capacity as a share of GVWR, 7.6%: smallest of 21; next is the 39LA (12.9%).
• Black tank, 80 gal: largest of 22; next is the 39IB (70 gal).
• Tongue weight, 1,400 lb: second-heaviest of 22, between the 39LA (1,305 lb) and the 28SW (1,425 lb).
• GVWR, 13,400 lb: third-highest of 22, between the 39GB (13,255 lb) and the 39IB and 39LA (14,000 lb).
• Length, 43 ft 4 in: third-longest of 22, between the 39GB (40 ft 7 in) and the 39LA (43 ft 9 in).
• Grey tank, 80 gal: largest of 22, level with the 39IB; next is the 39LA (70 gal).
• Tongue weight as a share of dry weight, 11.3%: sixth-smallest of 22, between the 23JW (11.2%) and the 16BC and 20JW (11.5%).
• Exterior height, 13 ft 6 in: tallest of 22, level with the 20JW and 39LA; next is the 39GB (12 ft 9 in).
• Fresh tank, 40 gal: shared with the 20JW, 39GB and two others; of 22, three smaller and fourteen larger, nearest the 16BC, 17LS and 18LM (26 gal) and the 19KR, 20AJ and twelve others (52 gal).

Next to the 39LA, the nearest lighter floorplan by dry weight, the 39JD is 186 lb heavier by dry weight, has a GVWR 600 lb lower, has 786 lb less cargo capacity, has a tongue weight 95 lb heavier, is 5 in shorter, has a grey tank 10 gal larger and has a black tank 40 gal larger; the two publish the same exterior height and fresh tank.

Campsite Reserve is the widest single Forest River travel-trailer roster this site carries: dry weight runs 3,764 lb at the 16BC to 12,380 lb at the top of the loft group, and cargo capacity runs 1,020 to 4,336 lb. Tongue weight runs 431 to 1,425 lb and GVWR 5,531 to 14,000 lb. The loft plans are where the weight is -- the 39-series sits at the top of every column -- and the three toy haulers sit in the middle rather than the top, which is unusual for a line that carries both. Twenty-one of the twenty-two profileable plans tie out exactly against dry weight plus cargo capacity. The exception is 23TS, whose own arithmetic gives 7,795 lb against a published GVWR of 7,805; it is published on its own page with that disagreement stated rather than profiled with the rest.

A full 40-gallon fresh tank is about 332 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 33% of the 39JD’s 1,020 lb cargo capacity, leaving 688 lb. Across 22 Campsite Reserve floorplans the water share runs 8% to 34%, and 1 gives up more than this one. Nearest on that share: Campsite Reserve 26RM at 30% and Campsite Reserve 26CJ at 34%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).