01 What makes it unique
Heartland lists the 2025 Corterra CT3.7 at 12,618 lb dry, a GVWR of 15,000 lb and a hitch weight of 3,364 lb. Heartland prints no cargo carrying capacity for it, so none is given here; the federal label inside the trailer carries one.
It is 41' 9 1/2" long and 13'6" high. Heartland prints no tank capacity for it.
Among the 3 Corterra floorplans Heartland’s 2025 Corterra brochure lists with a published dry weight, it is number 2 from the lightest, in a range from 10,430 lb (Corterra CT3.0) to 13,194 lb (Corterra CT3.5). Every figure in that comparison is Heartland’s, for the same model year.
Every number on this page was read on 6 Nov 2026 from Heartland’s 2025 Corterra brochure, the maker’s own dated document for model year 2025.
How the CT3.7 differs from the other two Corterra floorplans. Most distinctive first. How these ranks are worked out.
- Length, 41 ft 9 in: longest of three; next are the CT3.0 and CT3.5 (39 ft 9 in).
- Dry weight, 12,618 lb: second-lightest of three, between the CT3.0 (10,430 lb) and the CT3.5 (13,194 lb).
Next to the CT3.0, the nearest lighter floorplan by dry weight, the CT3.7 is 2,188 lb heavier by dry weight, has a GVWR 2,500 lb higher, is 2 ft longer and stands 3 in taller.
Next to the CT3.5, the nearest heavier floorplan by dry weight, the CT3.7 is 576 lb lighter by dry weight and is 2 ft longer; the two publish the same GVWR and exterior height.
02 Full specifications
Dimensions
- Exterior length
- 41' 9 1/2"
- Exterior height
- 13'6"
- Exterior width
- Not published by Heartland
- Interior height
- Not published by Heartland
Weights
- Dry / unit base weight (UVW)
- 12,618 lb
- GVWR (max loaded)
- 15,000 lb
- Net cargo / payload (CCC)
- Not published by Heartland
- Hitch weight
- 3,364 lb
Capacities
- Fresh water
- Not published by Heartland
- Grey water
- Not published by Heartland
- Black water
- Not published by Heartland
Running gear
- Hitch type
- Not stated per floorplan by Heartland
- Tire size
- Not published by Heartland
Sleeping & layout
- Sleeps
- Not published by Heartland
- Model year (as printed)
- page 1: "CORTERRA" / "2025" (cover heading)
- Spec block (as printed)
- CT3.7 LENGTH 41' 9 1/2" | HEIGHT 13'6" HITCH 3,364 LBS | DRY 12,618 LBS GVWR 15,000 LBS | SLEEP CAPACITY 7-8
- Sleep Capacity (as printed)
- 7-8
- Weight basis (as printed)
- DRY; brochure: "...approximate base weight of the trailer without the optional equipment included."
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Size (no width published)
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
03 The Corterra floorplan family
Heartland’s 2025 Corterra brochure lists 3 Corterra floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Corterra CT3.0 | 39'9 1/2" | — | Profiled |
| Corterra CT3.7 | 41' 9 1/2" | — | Profiled |
| Corterra CT3.5 | 39' 9-1/2" | — | Profiled |
Heartland’s 2025 Corterra brochure lists 3 Corterra floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Heartland does not publish for the Corterra CT3.7
Heartland prints no cargo carrying capacity, tire size, interior height, grey-tank, black-tank, sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
10,430 lb dry and 12,500 lb GVWR, against this model’s 12,618 lb and 15,000 lb.
13,194 lb dry and 15,000 lb GVWR, against this model’s 12,618 lb and 15,000 lb.
06 Loading it for a trip
No source publishes a tongue weight for the Corterra CT3.7, so its hitch load has to come from a scale ticket taken with the trailer hitched.
07 Where this floorplan sits
Closest sibling: the Corterra CT3.5, nearest on the published figures. It differs on 2 of the 3 fields both publish (this plan first): length 41 ft 9 in vs 39 ft 9 in; dry weight 12,618 lb vs 13,194 lb. They match on GVWR.
| Corterra plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 15,000 | 2–3 of 3 | 12,500–15,000 |
| Dry weight (lb) | 12,618 | 2 of 3 | 10,430–13,194 |
| Length | 41 ft 9 in | 3 of 3 | 39 ft 9 in–41 ft 9 in |
Either side of it by GVWR: Corterra CT3.5 matches it at 15,000 lb GVWR.
| Nearest Corterra siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Corterra CT3.7 | 41 ft 9 in | — | 12,618 | 15,000 | — | — | — |
| Corterra CT3.5 | 39 ft 9 in | — | 13,194 | 15,000 | — | — | — |
| Corterra CT3.0 | 39 ft 9 in | — | 10,430 | 12,500 | — | — | — |
All 3 Corterra floorplans: Corterra line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Corterra CT3.7 | 15,000 | 12,618 | — | 41 ft 9 in |
| Stealth 3300SLT | 14,999 | 10,986 | — | 37 ft 8 in |
| Puma Vista 420LFT | 14,825 | 13,024 | — | 42 ft 10 in |
| Aurora Destination Series 43CONDO | 14,745 | 13,245 | — | 43 ft 0 in |
| Jay Flight 40DLFT | 14,500 | 12,430 | 7 | 41 ft 6 in |
| Model Z AIR 310 | 14,495 | 11,061 | — | 37 ft 10 in |
| Cedar Creek Cottage 40CBK | 15,565 | 13,478 | — | 41 ft 6 in |
Against the Corterra CT3.7: the Stealth 3300SLT is 1 lb lighter and 4 ft shorter; the Puma Vista 420LFT is 175 lb lighter and 1 ft longer; the Aurora Destination Series 43CONDO is 255 lb lighter and 1 ft longer.
08 Common questions about the Corterra CT3.7
How much does the Corterra CT3.7 weigh?
12,618 lb dry; 15,000 lb GVWR, the most it may weigh loaded.
What size tow vehicle does the Corterra CT3.7 need?
A tow rating of at least 15,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How long is the Corterra CT3.7?
41' 9 1/2" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
4 of the 18 fields this catalogue tracks are published for the Corterra CT3.7. Not published: cargo capacity (CCC), hitch weight, exterior width, interior height, fresh tank, grey tank, black tank, sleeps, slide count, axle count, tire specification, awning, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: heartlandrvs.com, library.rvusa.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 2 recall campaigns against the Corterra line (a recall and a complaint are not the same thing).
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Corterra line page.