2026 Forest River Campsite Ultra26TH

The Campsite Ultra 26TH has 1,307 lbs of cargo capacity between 6,513 lbs dry and its 7,820 lbs GVWR, 17% of that rating; filling its 52-gallon fresh tank at 8.3 lb a gallon uses 432 lbs of it (how to read trailer weights).

Tongue weight is 820 lbs, 13% 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: 94 gallons of grey and black capacity against 52 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Campsite Ultra roster this is the 4th of 6 floorplans by dry weight, in a line that runs from 5,158 lbs to 6,923 lbs. It sits in the heavier third of the line.

Plan the tow on loaded weight, not the 6,513 lbs dry figure: half the published cargo capacity brings this plan to about 7,167 lbs, and the published GVWR of 7,820 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 Campsite Ultra 26TH is a rear-kitchen travel trailer that offers an incredible living area and bedroom. The bedroom accommodates a king size bed and a massive automotive windshield for an absolutely incredible view. The hidden pantry behind the entertainment center is a Campsite trademark, and it works especially well on this camper to maximize food storage space.” 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 26TH differs from the other five Campsite Ultra floorplans. Most distinctive first. How these ranks are worked out.

• Black tank, 56 gal: largest of six; next are the 26BW and 26CJL (38 gal).
• GVWR, 7,820 lb: second-highest of six, between the 21DF (7,795 lb) and the 26BW (7,985 lb).
• Tongue weight, 820 lb: second-heaviest of six, between the 21DF (795 lb) and the 26BW (985 lb).
• Length, 30 ft 9 in: second-longest of six, between the 26BW (30 ft 3 in) and the 26CJL (32 ft 9 in).
• Dry weight, 6,513 lb: third-heaviest of six, between the 26CJL (6,421 lb) and the 25JT (6,808 lb).
• Cargo capacity, 1,307 lb: third-largest of six, between the 26CJL (1,253 lb) and the 21DF (2,107 lb).
• Cargo capacity as a share of GVWR, 16.7%: third-largest of six, between the 26CJL (16.3%) and the 21DF (27%).
• Tongue weight as a share of dry weight, 12.6%: third-largest of six, between the 19KB (11.6%) and the 21DF (14%).
• Exterior height, 10 ft 8 in: tallest of six, level with the 26BW; next are the 19KB, 25JT and 26CJL (10 ft 7 in).

Next to the 26CJL, the nearest lighter floorplan by dry weight, the 26TH is 92 lb heavier by dry weight, has a GVWR 146 lb higher, has 54 lb more cargo capacity, has a tongue weight 146 lb heavier, is 2 ft shorter, stands 1 in taller, has a grey tank 10 gal larger and has a black tank 18 gal larger; the two publish the same fresh tank.

Next to the 25JT, the nearest heavier floorplan by dry weight, the 26TH is 295 lb lighter by dry weight, has a GVWR 85 lb higher, has 380 lb more cargo capacity, has a tongue weight 85 lb heavier, is 8 in longer, stands 1 in taller and has a black tank 28 gal larger; the two publish the same fresh tank and grey tank.

Campsite Ultra is the tightest roster on this site by loaded rating: GVWR spans just 7,600 to 7,985 lb across all six floorplans, a 385 lb spread. What actually varies is what the trailer spends that rating on. Dry weight runs 5,158 to 6,923 lb and cargo capacity runs 927 to 2,442 lb, so the lightest plan carries more than two and a half times the payload of the heaviest one at almost the same loaded weight. Tongue weight runs 600 to 985 lb. For a buyer, the real decision on this line is how much of the tow vehicle’s rating is left for gear.

A full 52-gallon fresh tank is about 432 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 33% of the 26TH’s 1,307 lb cargo capacity, leaving 875 lb. Across 6 Campsite Ultra floorplans the water share runs 18% to 47%, and 3 give up more than this one. Nearest on that share: Campsite Ultra 21DF at 20% and Campsite Ultra 26CJL at 34%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).