2027 Keystone Carbon361LT

Keystone publishes three weights for the Carbon 361LT: a shipping weight of 11,835 lb, a carrying capacity of 4,765 lb and a hitch weight of 2,605 lb. Those are Keystone’s own terms, and this page keeps them. Keystone does not call the first figure dry or unloaded weight, does not say the hitch figure is measured dry, and publishes no GVWR for any Carbon floorplan, so none of the three is renamed here and no loaded rating is worked out from them. The trailer’s own federal weight label, inside the door, is the document that carries its UVW, cargo capacity and GVWR.

Tank capacities are 94 gal fresh, 88 gal gray and 44 gal waste, as Keystone lists them. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank is roughly 780 lb on the road before anything else is loaded. The tire size Keystone lists is ST235/80R16G; a fifth wheel puts its pin load into the truck bed, so it counts against the truck’s payload rather than its tow rating.

Against the 6 Carbon floorplans profiled here, this one is the 2nd by Keystone’s shipping weight, in a range from 11,085 lb (310) to 15,370 lb (420). Every figure in that comparison comes from the same Keystone page type for the same model year, so the comparison inside the series is like for like.

Every number on this page was read on 5 Nov 2026 from Keystone’s own floorplan page for the Carbon 361LT. That page carries no model year, so the year comes from the roster page that links it, which lists the Carbon floorplans under the heading “2027 Floorplans”. Keystone notes that its website reflects the most recent production run and that features and specifications change during the year.

How the 361LT differs from the other five Carbon floorplans. Most distinctive first. How these ranks are worked out.

• Shipping weight (Keystone’s term), 11,835 lb: second-lightest of six, between the 310 (11,085 lb) and the 330 (12,405 lb).
• Carrying capacity (Keystone’s term), 4,765 lb: second-largest of six, between the 420 (4,630 lb) and the 310 (5,295 lb).
• Hitch weight as Keystone lists it, 2,605 lb: second-lightest of six, between the 310 (2,380 lb) and the 363 and 368 (2,720 lb).
• Hitch weight as a share of shipping weight, 22%: second-largest of six, between the 363 and 420 (21.8%) and the 330 (22.3%).
• Length, 39 ft 11 in: third-shortest of six, between the 310 and 330 (35 ft 11 in) and the 363 and 368 (40 ft 7 in).
• Sleeping capacity, 7: largest of six, level with the 368 and 420; next are the 310, 330 and 363 (6).

Next to the 310, the nearest lighter floorplan by shipping weight, the 361LT is 750 lb heavier by shipping weight, has 530 lb less carrying capacity, has a hitch weight 225 lb heavier, is 4 ft longer and sleeps one more; the two publish the same exterior height, fresh tank and grey tank.

Next to the 330, the nearest heavier floorplan by shipping weight, the 361LT is 570 lb lighter by shipping weight, has 405 lb more carrying capacity, has a hitch weight 160 lb lighter, is 4 ft longer and sleeps one more; the two publish the same exterior height, fresh tank and grey tank.

Keystone lists 6 Carbon floorplans for 2027. 6 have a complete Keystone figure set and no existing page here, and are profiled, from 11,085 lb to 15,370 lb shipping weight; the others are catalogued on this page with the reason against each. Keystone publishes shipping weight, carrying capacity and hitch weight for these trailers, and no GVWR.