2026 Forest River EVO178BHS

The EVO 178BHS has 1,488 lbs of cargo capacity between 4,182 lbs dry and its 5,670 lbs GVWR, 26% of that rating; filling its 39-gallon fresh tank at 8.3 lb a gallon uses 324 lbs of it (how to read trailer weights).

Tongue weight is 570 lbs, 14% 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: 59 gallons of grey and black capacity against 39 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the EVO roster this is the 5th of 18 floorplans by dry weight, in a line that runs from 2,504 lbs to 7,433 lbs. It sits in the lighter third of the line.

Plan the tow on loaded weight, not the 4,182 lbs dry figure: half the published cargo capacity brings this plan to about 4,926 lbs, and the published GVWR of 5,670 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 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. 178BHS is a EVO designation and this site does not decode it into a layout claim.

How the 178BHS differs from the other seventeen EVO floorplans. Most distinctive first. How these ranks are worked out.

• Tongue weight as a share of dry weight, 13.6%: third-largest of eighteen, between the 174DBLE and 260ICE (13.5%) and the 179DB (14%).
• Dry weight, 4,182 lb: fifth-lightest of eighteen, between the 179DB (3,515 lb) and the 163RD (4,197 lb).
• Length, 22 ft 11 in: fifth-shortest of eighteen, between the 179DB (22 ft 5 in) and the 163RD and 165VW (23 ft 2 in).
• GVWR, 5,670 lb: seventh-lowest of eighteen, between the 165VW (5,650 lb) and the 233RBLE (7,520 lb).
• Cargo capacity, 1,488 lb: seventh-smallest of eighteen, between the 179DB (1,377 lb) and the 26ICE (1,497 lb).
• Cargo capacity as a share of GVWR, 26.2%: seventh-largest of eighteen, between the 2985VBX (25.6%) and the 179DB (28.1%).
• Black tank, 27 gal: smallest of eighteen, level with the 163RD, 165VW and 179DB; next are the 135ICE, 164FBLE and six others (30 gal).
• Tongue weight, 570 lb: eighth-lightest of eighteen, between the 165VW (550 lb) and the 2290ER (650 lb).
• Fresh tank, 39 gal: smallest of eighteen, level with the 163RD, 164FBLE and four others; next are the 25ICE, 260ICE and 26ICE (40 gal).
• Grey tank, 32 gal: shared with the 2985VBX; of eighteen, five smaller and eleven larger, nearest the 135ICE, 164FBLE and two others (30 gal) and the 233RBLE (43 gal).
• Exterior height, 10 ft 8 in: shared with the 2405BHX; of eighteen, nine lower and seven taller, nearest the 233RBLE (10 ft 6 in) and the 163RD, 165VW and two others (10 ft 9 in).

Next to the 179DB, the nearest lighter floorplan by dry weight, the 178BHS is 667 lb heavier by dry weight, has a GVWR 778 lb higher, has 111 lb more cargo capacity, has a tongue weight 78 lb heavier, is 6 in longer, stands 6 in taller and has a grey tank 5 gal larger; the two publish the same fresh tank and black tank.

Next to the 163RD, the nearest heavier floorplan by dry weight, the 178BHS is 15 lb lighter by dry weight, has a GVWR 150 lb higher, has 165 lb more cargo capacity, has a tongue weight 150 lb heavier, is 3 in shorter, stands 1 in lower and has a grey tank 22 gal smaller; the two publish the same fresh tank and black tank.

EVO is not one roster but four, and the factory publishes them under separate headings: EVO, EVO Lites, EVO Selects and EVO Singles. That matters for anyone shopping by weight, because the sub-family a plan belongs to predicts its weight class more reliably than its floorplan number does - the Singles run single-axle and light, the base EVO group runs tandem-axle and heavier, and a buyer comparing two EVO plans by number alone can be a full tow class out.

A full 39-gallon fresh tank is about 324 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 22% of the 178BHS’s 1,488 lb cargo capacity, leaving 1,164 lb. Across 18 EVO floorplans the water share runs 11% to 46%, and 10 give up more than this one. Nearest on that share: EVO 2750QBX at 21% and EVO 25ICE at 22%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).