2026 Forest River Cascade17MPHC

The Cascade 17MPHC has 811 lbs of cargo capacity between 4,879 lbs dry and its 5,690 lbs GVWR, 14% of that rating; filling its 12-gallon fresh tank at 8.3 lb a gallon uses 100 lbs of it (how to read trailer weights).

Tongue weight is 590 lbs, 12% 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: 16 gallons of grey and black capacity against 12 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Cascade roster this is the 6th of 16 floorplans by dry weight, in a line that runs from 2,604 lbs to 11,327 lbs. It sits in the middle of the line by weight.

Plan the tow on loaded weight, not the 4,879 lbs dry figure: half the published cargo capacity brings this plan to about 5,285 lbs, and the published GVWR of 5,690 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. 17MPHC is a Cascade designation and this site does not decode it into a layout claim.

How the 17MPHC differs from the other fifteen Cascade floorplans. Most distinctive first. How these ranks are worked out.

• Fresh tank, 12 gal: smallest of sixteen; next is the 17THHC (13 gal).
• Black tank, 4 gal: smallest of sixteen; next is the 17THHC (4.5 gal).
• Cargo capacity as a share of GVWR, 14.3%: second-smallest of sixteen, between the 17THHC (9.4%) and the 39DLC (15.1%).
• Cargo capacity, 811 lb: third-smallest of sixteen, between the 17LPC (781 lb) and the 18PBC (1,116 lb).
• GVWR, 5,690 lb: fifth-lowest of sixteen, between the 18PBC (5,575 lb) and the 17THHC (5,702 lb).
• Grey tank, 12 gal: smallest of sixteen, level with the 17THHC; next are the 14BHLPC, 17LPC and two others (28 gal).
• Dry weight, 4,879 lb: sixth-lightest of sixteen, between the 26LPC (4,558 lb) and the 17THHC (5,167 lb).
• Tongue weight, 590 lb: sixth-lightest of sixteen, between the 26LPC (560 lb) and the 17THHC (602 lb).
• Exterior height, 10 ft 4 in: shared with the 17THHC and 18PBC; of sixteen, two lower and eleven taller, nearest the 14BHLPC (10 ft 2 in) and the 17SCC and 26KFC (10 ft 5 in).
• Length, 26 ft 8 in: shared with the 17THHC; of sixteen, four shorter and ten longer, nearest the 17SCC and 18PBC (23 ft 11 in) and the 23MSC and 26LPC (29 ft 2 in).
• Tongue weight as a share of dry weight, 12.1%: shared with the 20OGC; of sixteen, six smaller and eight larger, nearest the 301BHC (11.9%) and the 14BHLPC and 26LPC (12.3%).

Next to the 26LPC, the nearest lighter floorplan by dry weight, the 17MPHC is 321 lb heavier by dry weight, has a GVWR 1,870 lb lower, has 2,191 lb less cargo capacity, has a tongue weight 30 lb heavier, is 2 ft 6 in shorter, stands 2 in lower, has a fresh tank 40 gal smaller, has a grey tank 26 gal smaller and has a black tank 24 gal smaller.

Next to the 17THHC, the nearest heavier floorplan by dry weight, the 17MPHC is 288 lb lighter by dry weight, has a GVWR 12 lb lower, has 276 lb more cargo capacity, has a tongue weight 12 lb lighter, has a fresh tank 1 gal smaller and has a black tank 0.5 gal smaller; the two publish the same length, exterior height and grey tank.

Cascade covers a wider span than any other Forest River travel-trailer line this site has catalogued: thirty-three published floorplans in five factory groupings - single axle, tandem axle, tandem-axle toy hauler, fish house and destination - running from 2,604 lb dry at 17 feet 3 inches to 11,327 lb at 42 feet 8 inches. Tongue weight runs 320 to 1,342 lb over that span. The grouping a plan belongs to predicts its class far better than its floorplan number does, so both are in the table below.

A full 12-gallon fresh tank is about 100 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 12% of the 17MPHC’s 811 lb cargo capacity, leaving 711 lb. Across 16 Cascade floorplans the water share runs 8% to 32%, and 13 give up more than this one. Nearest on that share: Cascade 20OGC at 12% and Cascade 29TEC at 14%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).