01 What makes it unique
KZ lists the 2027 Sportsmen Select 231MKSL at 5,270 lb unloaded (UVW), with a GVWR of 7,000 lb, a cargo carrying capacity of 1,730 lb and a dry hitch weight of 560 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 28' 5" long and 10' 8" high with the air conditioner, with 45 gal fresh, 38 gal grey and 38 gal black tanks. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 374 lb of the cargo capacity before anything else is loaded.
Among the 6 Sportsmen Select floorplans KZ lists for 2027 with a published weight, it is number 4 by unloaded weight, in a range from 4,470 lb (210RDSL) to 6,270 lb (271BHSL). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from KZ’s own floorplan page for the Sportsmen Select 231MKSL, whose floorplan drawing KZ labels 2027. KZ notes that its UVW reflects a rolling average for the model and that your trailer will vary with optional equipment.
How the 231MKSL differs from the other five Sportsmen Select floorplans. Most distinctive first. How these ranks are worked out.
- Dry tongue weight as a share of dry weight, 10.6%: second-smallest of six, between the 221RKSL (10.1%) and the 210RDSL (10.7%).
- Dry weight, 5,270 lb: third-heaviest of six, between the 260BHSL (4,920 lb) and the 241BHSL (5,350 lb).
- Cargo capacity as a share of GVWR, 24.7%: third-smallest of six, between the 241BHSL (23.6%) and the 260BHSL (29.7%).
- Length, 28 ft 5 in: third-shortest of six, between the 221RKSL (25 ft 8 in) and the 260BHSL (28 ft 7 in).
- Cargo capacity, 1,730 lb: shared with the 271BHSL; of six, one smaller and three larger, nearest the 241BHSL (1,650 lb) and the 260BHSL (2,080 lb).
- Sleeping capacity, 5: shared with the 210RDSL; of six, one smaller and three larger, nearest the 221RKSL (3) and the 241BHSL (8).
- Dry tongue weight, 560 lb: shared with the 260BHSL; of six, two lighter and two heavier, nearest the 221RKSL (490 lb) and the 241BHSL (610 lb).
Next to the 260BHSL, the nearest lighter floorplan by dry weight, the 231MKSL is 350 lb heavier by dry weight, has 350 lb less cargo capacity, is 2 in shorter and sleeps four fewer; the two publish the same GVWR, dry tongue weight, exterior height, interior height, fresh tank, grey tank and black tank.
Next to the 241BHSL, the nearest heavier floorplan by dry weight, the 231MKSL is 80 lb lighter by dry weight, has 80 lb more cargo capacity, has a dry tongue weight 50 lb lighter, is 3 in shorter and sleeps three fewer; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 28' 5"
- Exterior height
- 10' 8" (with A/C)
- Exterior width
- 96"
- Interior height
- 78"
Weights
- Dry / unit base weight (UVW)
- 5,270 lb
- GVWR (max loaded)
- 7,000 lb
- Net cargo / payload (CCC)
- 1,730 lb
- Hitch / dry tongue weight
- 560 lb
Capacities
- Fresh water
- 45 gal
- Grey water
- 38 gal
- Black water
- 38 gal
- Propane
- 40 lb
Running gear
- Hitch type
- Bumper pull
- Tire size
- 14"
Sleeping & layout
- Sleeps
- 5
- Refrigerator
- 10 cu ft
- Awning
- 20'
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
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (7,000 lb) and the upper loaded tongue estimate (1,050 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433).
03 The Sportsmen Select floorplan family
KZ lists 7 Sportsmen Select floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 210RDSL | 24' 11" | 5 | Profiled |
| 221RKSL | 25' 8" | 3 | Profiled |
| 260BHSL | 28' 7" | 9 | Profiled |
| 231MKSL | 28' 5" | 5 | Profiled |
| 241BHSL | 28' 8" | 8 | Profiled |
| 261BHSL | 31' 7" | 9 | Catalogued · dealer stock only |
| 271BHSL | 32' 9" | 9 | Profiled |
KZ lists 7 Sportsmen Select floorplans. Every 2027 plan with a published weight has a page here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What KZ does not publish for the 231MKSL
KZ’s page prints no axle count and no price against this floorplan, so none is given. Nothing is filled from a sibling floorplan, 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
4,920 lb UVW and 7,000 lb GVWR, against this plan’s 5,270 lb and 7,000 lb.
5,350 lb UVW and 7,000 lb GVWR, against this plan’s 5,270 lb and 7,000 lb.
06 Loading it for a trip
A full 45-gallon fresh tank is about 374 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 22% of the 231MKSL’s 1,730 lb cargo capacity, leaving 1,356 lb (271 lb per rated berth). Across 6 Sportsmen Select floorplans the water share runs 15% to 23%, and 1 gives up more than this one. Nearest on that share: Sportsmen Select 271BHSL at 22% and Sportsmen Select 241BHSL at 23%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).
07 Where this floorplan sits
Closest sibling: the Sportsmen Select 241BHSL, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 28 ft 5 in vs 28 ft 8 in; sleeps 5 vs 8; dry weight 5,270 lb vs 5,350 lb; cargo capacity 1,730 lb vs 1,650 lb; hitch weight 560 lb vs 610 lb. They match on GVWR, fresh tank, grey tank and black tank.
| Sportsmen Select plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 7,000 | 1–5 of 6 | 7,000–8,000 |
| Dry weight (lb) | 5,270 | 4 of 6 | 4,470–6,270 |
| Cargo capacity (lb) | 1,730 | 2–3 of 6 | 1,650–2,530 |
| Hitch weight (lb) | 560 | 3–4 of 6 | 480–750 |
| Length | 28 ft 5 in | 3 of 6 | 24 ft 11 in–32 ft 9 in |
| Sleeps | 5 | 2–3 of 6 | 3–9 |
Either side of it by GVWR: Sportsmen Select 221RKSL matches it at 7,000 lb GVWR; Sportsmen Select 241BHSL matches it at 7,000 lb GVWR.
| Nearest Sportsmen Select siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Sportsmen Select 231MKSL | 28 ft 5 in | 5 | 5,270 | 7,000 | 1,730 | 560 | 45 |
| Sportsmen Select 241BHSL | 28 ft 8 in | 8 | 5,350 | 7,000 | 1,650 | 610 | 45 |
| Sportsmen Select 260BHSL | 28 ft 7 in | 9 | 4,920 | 7,000 | 2,080 | 560 | 45 |
| Sportsmen Select 210RDSL | 24 ft 11 in | 5 | 4,470 | 7,000 | 2,530 | 480 | 45 |
| Sportsmen Select 221RKSL | 25 ft 8 in | 3 | 4,870 | 7,000 | 2,130 | 490 | 45 |
| Sportsmen Select 271BHSL | 32 ft 9 in | 9 | 6,270 | 8,000 | 1,730 | 750 | 45 |
All 6 Sportsmen Select floorplans: Sportsmen Select line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 231MKSL | 7,000 | 5,270 | 5 | 28 ft 5 in |
| Coachmen Apex Ultra-Lite X-Series 24RBX | 7,000 | 5,507 | — | 29 ft 1 in |
| Black Series HQ15 | 7,000 | 5,291 | 3 | 23 ft 0 in |
| Connect SE C221RKSE | 7,000 | 5,660 | 4 | 27 ft 0 in |
| inTech Black Wing 724-X | 7,000 | — | 4 | 23 ft 11 in |
| Jay Feather 22RB | 7,000 | 5,590 | 4 | 27 ft 2 in |
| Jay Flight 230FBS | 7,000 | 5,265 | 4 | 25 ft 10 in |
Against the 231MKSL: the Black Series HQ15 is 5 ft shorter and sleeps 2 fewer; the Connect SE C221RKSE is 1 ft shorter and sleeps 1 fewer.
08 Common questions about the 231MKSL
How much does the 231MKSL weigh?
5,270 lb dry; 7,000 lb GVWR, the most it may weigh loaded.
How much can the 231MKSL carry?
1,730 lb, 25% of its GVWR (median across 1,010 travel trailers here: 23%). A full fresh tank uses 374 lb of it.
What is the tongue weight of the 231MKSL?
560 lb dry, 11% of the dry weight (median across 1,413 travel trailers here: 12%).
What size tow vehicle does the 231MKSL need?
A tow rating of at least 7,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the 231MKSL sleep?
It is rated to sleep 5. 3 of the 6 Sportsmen Select floorplans that publish a count sleep more.
What are the tank capacities on the 231MKSL?
Fresh 45, grey 38, black 38 gallons. Off hookups, fresh water runs out first.
How long is the 231MKSL?
28' 5" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
14 of the 18 fields this catalogue tracks are published for the 231MKSL. Not published: slide count, axle count, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: kz-rv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 17 recall campaigns and 14 owner complaints (model years 2005 on) against the Sportsmen line (a recall and a complaint are not the same thing).
What to look at on a used one. Across the 14 complaints filed on this line the most-reported components are tires (29%), structure (14%) and suspension (14%).
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 Sportsmen line page.