2027 Ember E-Series12RK

Ember lists the 2027 E-Series 12RK at 1,740 lb unloaded (UVW), with a GVWR of 3,450 lb, a cargo carrying capacity of 1,710 lb and a hitch weight of 255 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.

It is 15' 9" long and 7' 0" high with the air conditioner, with 26 gal fresh (Ember prints no grey or black tank figure for it). Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 216 lb of the cargo capacity before anything else is loaded.

Among the 12 E-Series floorplans Ember lists for 2027 with a published weight, it is number 1 by unloaded weight, in a range from 1,740 lb (12RK) to 6,130 lb (26ETS). Every figure in that comparison is Ember’s, for the same model year.

Every number on this page was read on 5 Nov 2026 from Ember’s own floorplan page for the E-Series 12RK, whose structured data names the model year 2027.

How the 12RK differs from the other eleven E-Series floorplans. Most distinctive first. How these ranks are worked out.

• Dry weight, 1,740 lb: lightest of twelve; next is the 12FK (1,855 lb).
• GVWR, 3,450 lb: lowest of twelve; next is the 12FK (3,500 lb).
• Cargo capacity as a share of GVWR, 49.6%: largest of twelve; next is the 12FK (47%).
• Tongue weight, 255 lb: lightest of twelve; next is the 12FK (295 lb).
• Tongue weight as a share of dry weight, 14.7%: second-largest of twelve, between the 19ETS (13.7%) and the 12FK (15.9%).
• Cargo capacity, 1,710 lb: fourth-largest of twelve, between the 22MLQ (1,695 lb) and the 21RKE (1,720 lb).
• Length, 15 ft 9 in: shortest of twelve, level with the 12FK; next is the 18FBE (21 ft 4 in).
• Exterior height, 7 ft: lowest of twelve, level with the 12FK; next are the 21FBE, 21RKE and five others (11 ft 2 in).
• Fresh tank, 26 gal: smallest of twelve, level with the 12FK; next are the 18FBE, 18RBE and eight others (55 gal).

Next to the 12FK, the nearest heavier floorplan by dry weight, the 12RK is 115 lb lighter by dry weight, has a GVWR 50 lb lower, has 65 lb more cargo capacity and has a tongue weight 40 lb lighter; the two publish the same length, exterior height and fresh tank.

Ember lists 12 E-Series floorplans for 2027; this site profiles every one with a published weight, from Ember’s own floorplan pages.

A full 26-gallon fresh tank is about 216 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 13% of the 12RK’s 1,710 lb cargo capacity, leaving 1,494 lb (747 lb per rated berth). Across 12 E-Series floorplans the water share runs 13% to 31%, and this plan’s is the lowest. Nearest on that share: E-Series 12FK at 13%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).