2026 Forest RiverShasta Phoenix 389DEK

Forest River lists the 2026 Shasta Phoenix 389DEK at 12,721 lb dry, a GVWR of 14,500 lb, a net carrying capacity of 1,779 lb and a pin weight of 2,320 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 42' 4" long and 13' high. Forest River prints its tanks as 48 gal fresh, 135 gal grey, 45 gal black.

Among the 17 Shasta Phoenix floorplans Forest River lists for 2026 with a published dry weight, it is number 16 from the lightest, in a range from 7,365 lb (Shasta Phoenix 218SE) to 13,030 lb (Shasta Phoenix 373MBRB). Every figure in that comparison is Forest River’s, for the same model year.

Every number on this page was read on 5 Nov 2026 from Forest River’s 2026 Shasta Phoenix sheet, the maker’s own dated document for model year 2026.

How the 389DEK differs from the other sixteen Shasta Phoenix floorplans. Most distinctive first. How these ranks are worked out.

• Cargo capacity as a share of GVWR, 12.3%: smallest of seventeen; next is the 373MBRB (13.1%).
• Grey tank, 135 gal: largest of seventeen; next is the 373MBRB (120 gal).
• Dry weight, 12,721 lb: second-heaviest of seventeen, between the 391MBH (12,445 lb) and the 373MBRB (13,030 lb).
• Cargo capacity, 1,779 lb: second-smallest of seventeen, between the 218SE (1,135 lb) and the 30BHS (1,965 lb).
• Pin weight, 2,320 lb: second-heaviest of seventeen, between the 391MBH (2,240 lb) and the 334FL (2,708 lb).
• Length, 42 ft 4 in: sixth-longest of seventeen, between the 391MBH (42 ft 2 in) and the 334FL, 367BH and three others (42 ft 6 in).
• Pin weight as a share of dry weight, 18.2%: seventh-largest of seventeen, between the 391MBH (18%) and the 360BH (18.3%).
• GVWR, 14,500 lb: shared with the 370BAF, 381DBL and 391MBH; of seventeen, ten lower and three higher, nearest the 360BH (14,000 lb) and the 334FL and 373MBRB (15,000 lb).
• Exterior height, 13 ft: tallest of sixteen, level with the 334FL, 367BH and four others; next are the 298RLS, 336RL and 360BH (12 ft 10 in).
• Black tank, 45 gal: shared with the 298RLS, 334FL and three others; of seventeen, six smaller and five larger, nearest the 218SE, 254RLS and four others (33 gal) and the 368TBH (66 gal).

Next to the 391MBH, the nearest lighter floorplan by dry weight, the 389DEK is 276 lb heavier by dry weight, has 276 lb less cargo capacity, has a pin weight 80 lb heavier, is 2 in longer and has a grey tank 50 gal larger; the two publish the same GVWR, exterior height, fresh tank and black tank.

Next to the 373MBRB, the nearest heavier floorplan by dry weight, the 389DEK is 309 lb lighter by dry weight, has a GVWR 500 lb lower, has 191 lb less cargo capacity, has a pin weight 101 lb heavier, is 2 in shorter, has a grey tank 15 gal larger and has a black tank 30 gal smaller; the two publish the same exterior height and fresh tank.

Forest River lists 17 Shasta Phoenix floorplans for 2026; this site profiles every one with a printed weight, from Forest River’s own 2026 Shasta Phoenix sheet.

A full 48-gallon fresh tank is about 398 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 22% of the Shasta Phoenix 389DEK’s 1,779 lb cargo capacity, leaving 1,381 lb. Across 17 Shasta Phoenix floorplans the water share runs 13% to 29%, and 1 gives up more than this one. Nearest on that share: Shasta Phoenix 373MBRB at 20% and Shasta Phoenix 218SE at 29%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).