01 What makes it unique
KZ lists the 2014 StoneRidge 40RSS at 13,720 lb dry, a GVWR of 19,000 lb, a net carrying capacity of 5,280 lb and a pin weight of 3,040 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 42' 10" long and 13' 1" high. KZ prints its tanks as 110 gal fresh, 114 gal grey, 57 gal black.
Among the 8 StoneRidge floorplans KZ’s StoneRidge brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 7 from the lightest, in a range from 11,725 lb (StoneRidge 36IK) to 13,820 lb (StoneRidge 41CKS). 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 StoneRidge brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year); model year 2014 comes from where the maker files it on its own site, not from the document’s text.
How the 40RSS differs from the other seven StoneRidge floorplans. Most distinctive first. How these ranks are worked out.
- Cargo capacity, 5,280 lb: largest of eight; next is the 41CKS (5,180 lb).
- Cargo capacity as a share of GVWR, 27.8%: largest of eight; next is the 41CKS (27.3%).
- Pin weight, 3,040 lb: heaviest of eight; next is the 41CKS (2,930 lb).
- Length, 42 ft 10 in: longest of eight; next is the 41CKS (42 ft 8 in).
- Dry weight, 13,720 lb: second-heaviest of eight, between the 39BH (12,920 lb) and the 41CKS (13,820 lb).
- Pin weight as a share of dry weight, 22.2%: second-largest of eight, between the 41CKS (21.2%) and the 36IK (22.6%).
- GVWR, 19,000 lb: highest of eight, level with the 41CKS; next is the 39BH (15,500 lb).
- Fresh tank, 110 gal: largest of eight, level with the 41CKS; next are the 36IK, 36RK and four others (100 gal).
- Grey tank, 114 gal: largest of eight, level with the 36RK and 39BH; next are the 36IK, 36RLB and three others (57 gal).
Next to the 39BH, the nearest lighter floorplan by dry weight, the 40RSS is 800 lb heavier by dry weight, has a GVWR 3,500 lb higher, has 2,700 lb more cargo capacity, has a pin weight 750 lb heavier, is 2 ft longer, stands 5 in taller and has a fresh tank 10 gal larger; the two publish the same interior height, grey tank and black tank.
Next to the 41CKS, the nearest heavier floorplan by dry weight, the 40RSS is 100 lb lighter by dry weight, has 100 lb more cargo capacity, has a pin weight 110 lb heavier, is 2 in longer and has a grey tank 57 gal larger; the two publish the same GVWR, exterior height, interior height, fresh tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 42' 10"
- Exterior height
- 13' 1"
- Exterior width
- 101"
- Interior height
- 76"
Weights
- Dry / unit base weight (UVW)
- 13,720 lb
- GVWR (max loaded)
- 19,000 lb
- Net cargo / payload (CCC)
- 5,280 lb
- Hitch / pin weight
- 3,040 lb
Capacities
- Fresh water
- 110 gal
- Grey water
- 114 gal
- Black water
- 57 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16"
Sleeping & layout
- Sleeps
- Not published by KZ
- Dry Axle Weight*
- 10,680
- Refrigerator (cu. feet)
- 8
- Water Heater Cap. (gal. G/E w/DSI)
- 12
- LP Gas Cap. (lbs.)
- 60
- Furnace BTUs (1,000s)
- 35
- Model year source
- The brochure itself prints no model year; KZ files it under 2014 in its own brochure folder (kz-rv.com/brochures/2014/).
- Awning
- 16'
How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; 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 (19,000 lb) and the upper loaded pin estimate (4,750 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.
03 The StoneRidge floorplan family
KZ’s StoneRidge brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists 8 StoneRidge floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| StoneRidge 36IK | 37' 8" | — | Profiled |
| StoneRidge 36RLB | 37' 11" | — | Profiled |
| StoneRidge 38FL | 39' 11" | — | Profiled |
| StoneRidge 36UL | 38' 8" | — | Profiled |
| StoneRidge 36RK | 38' 8" | — | Profiled |
| StoneRidge 39BH | 40' 10" | — | Profiled |
| StoneRidge 40RSS | 42' 10" | — | Profiled |
| StoneRidge 41CKS | 42' 8" | — | Profiled |
KZ’s StoneRidge brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists 8 StoneRidge floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the StoneRidge 40RSS
KZ prints no 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
12,920 lb dry and 15,500 lb GVWR, against this model’s 13,720 lb and 19,000 lb.
13,820 lb dry and 19,000 lb GVWR, against this model’s 13,720 lb and 19,000 lb.
06 Loading it for a trip
A full 110-gallon fresh tank is about 913 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 17% of the StoneRidge 40RSS’s 5,280 lb cargo capacity, leaving 4,367 lb. Across 8 StoneRidge floorplans the water share runs 17% to 32%, and this plan’s is the lowest. Nearest on that share: StoneRidge 41CKS at 18%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).
07 Where this floorplan sits
Closest sibling: the StoneRidge 41CKS, nearest on the published figures. It differs on 5 of the 8 fields both publish (this plan first): length 42 ft 10 in vs 42 ft 8 in; dry weight 13,720 lb vs 13,820 lb; cargo capacity 5,280 lb vs 5,180 lb; hitch weight 3,040 lb vs 2,930 lb; grey tank 114 gal vs 57 gal. They match on GVWR, fresh tank and black tank.
| StoneRidge plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 19,000 | 7–8 of 8 | 14,500–19,000 |
| Dry weight (lb) | 13,720 | 7 of 8 | 11,725–13,820 |
| Cargo capacity (lb) | 5,280 | 8 of 8 | 2,580–5,280 |
| Hitch weight (lb) | 3,040 | 8 of 8 | 2,210–3,040 |
| Length | 42 ft 10 in | 8 of 8 | 37 ft 8 in–42 ft 10 in |
| Fresh tank (gal) | 110 | 7–8 of 8 | 100–110 |
| Grey tank (gal) | 114 | 6–8 of 8 | 57–114 |
Either side of it by GVWR: StoneRidge 39BH is 3,500 lb lighter (15,500 lb GVWR); StoneRidge 41CKS matches it at 19,000 lb GVWR.
| Nearest StoneRidge siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| StoneRidge 40RSS | 42 ft 10 in | — | 13,720 | 19,000 | 5,280 | 3,040 | 110 |
| StoneRidge 41CKS | 42 ft 8 in | — | 13,820 | 19,000 | 5,180 | 2,930 | 110 |
| StoneRidge 39BH | 40 ft 10 in | — | 12,920 | 15,500 | 2,580 | 2,290 | 100 |
| StoneRidge 36RK | 38 ft 8 in | — | 12,420 | 15,400 | 2,980 | 2,290 | 100 |
| StoneRidge 36IK | 37 ft 8 in | — | 11,725 | 15,000 | 3,275 | 2,645 | 100 |
| StoneRidge 36UL | 38 ft 8 in | — | 11,940 | 15,000 | 3,060 | 2,440 | 100 |
All 8 StoneRidge floorplans: StoneRidge line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| StoneRidge 40RSS | 19,000 | 13,720 | — | 42 ft 10 in |
| Escalade Sportster 41IKS | 19,000 | 14,298 | — | 41 ft 11 in |
| Influence 3804DS | 19,000 | 14,800 | — | — |
| Momentum 344M | 19,000 | 15,910 | 6 | — |
| North Point 375TBDB | 19,000 | 15,735 | 9 | — |
| Paradigm 385FL | 19,000 | 15,636 | — | 41 ft 4 in |
| Solitude 310GK | 19,000 | 12,500 | — | — |
08 Common questions about the StoneRidge 40RSS
How much does the StoneRidge 40RSS weigh?
13,720 lb dry; 19,000 lb GVWR, the most it may weigh loaded.
How much can the StoneRidge 40RSS carry?
5,280 lb, 28% of its GVWR (median across 442 fifth wheels here: 19%). A full fresh tank uses 913 lb of it.
What is the pin weight of the StoneRidge 40RSS?
3,040 lb as published, 22% of the dry weight (median across 686 fifth wheels here: 19%).
What size tow vehicle does the StoneRidge 40RSS need?
A tow rating of at least 19,000 lb, plus payload for the loaded pin weight, passengers and cargo.
What are the tank capacities on the StoneRidge 40RSS?
Fresh 110, grey 114, black 57 gallons. Off hookups, fresh water runs out first.
How long is the StoneRidge 40RSS?
42' 10" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
12 of the 18 fields this catalogue tracks are published for the StoneRidge 40RSS. Not published: sleeps, slide count, axle count, refrigerator, 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 3 recall campaigns against the StoneRidge 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 StoneRidge line page.