01 What makes it unique
Coachmen lists the 2025 Chaparral 355FBX at 11,542 lb dry, a GVWR of 14,500 lb, a net carrying capacity of 2,958 lb and a pin weight of 2,008 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 42' 7" long and 13' high. Coachmen prints its tanks as 48 gal fresh, 135 gal grey, 90 gal black.
Among the 19 Chaparral floorplans Coachmen’s 2025 fifth-wheel brochure lists with a published dry weight, it is number 12 from the lightest, in a range from 6,950 lb (Chaparral Lite 235RK) to 13,080 lb (Chaparral 393MBX). Every figure in that comparison is Coachmen’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from Coachmen’s 2025 fifth-wheel brochure, the maker’s own dated document for model year 2025.
How the 355FBX differs from the other eighteen Chaparral floorplans. Most distinctive first. How these ranks are worked out.
- Length, 42 ft 7 in: longest of nineteen; next are the 334FL, 367BH and four others (42 ft 6 in).
- Black tank, 90 gal: largest of nineteen; next are the 373MBRB and 381DBL (75 gal).
- Cargo capacity, 2,958 lb: third-largest of nineteen, between the 368TBH (2,650 lb) and the 336TSIK (2,980 lb).
- Grey tank, 135 gal: largest of nineteen, level with the 389DEK; next is the 373MBRB (120 gal).
- Dry weight, 11,542 lb: eighth-heaviest of nineteen, between the 360IBL (11,450 lb) and the 381DBL (12,186 lb).
- Cargo capacity as a share of GVWR, 20.4%: eighth-largest of eighteen, between the 298RLS (20.2%) and the 367BH (20.5%).
- Pin weight, 2,008 lb: ninth-heaviest of nineteen, between the 368TBH (1,974 lb) and the 381DBL (2,040 lb).
- Pin weight as a share of dry weight, 17.4%: tenth-smallest of nineteen, between the 375BAF (17.3%) and the 367BH (17.8%).
- GVWR, 14,500 lb: shared with the 375BAF, 381DBL and 389DEK; of nineteen, eleven lower and four higher, nearest the 360IBL (14,000 lb) and the 334FL and 373MBRB (15,000 lb).
- Exterior height, 13 ft: tallest of nineteen, level with the 334FL, 367BH and five others; next are the 298RLS, 336TSIK and 360IBL (12 ft 10 in).
Next to the 360IBL, the nearest lighter floorplan by dry weight, the 355FBX is 92 lb heavier by dry weight, has a GVWR 500 lb higher, has 408 lb more cargo capacity, has a pin weight 92 lb lighter, is 2 ft 10 in longer, stands 2 in taller, has a grey tank 45 gal larger and has a black tank 45 gal larger; the two publish the same fresh tank.
Next to the 381DBL, the nearest heavier floorplan by dry weight, the 355FBX is 644 lb lighter by dry weight, has 644 lb more cargo capacity, has a pin weight 32 lb lighter, is 1 in longer, has a grey tank 23 gal larger and has a black tank 15 gal larger; the two publish the same GVWR, exterior height and fresh tank.
02 Full specifications
Dimensions
- Exterior length
- 42' 7"
- Exterior height
- 13'
- Exterior width
- Not published by Coachmen
- Interior height
- Printed in the brochure, not transcribed here
Weights
- Dry / unit base weight (UVW)
- 11,542 lb
- GVWR (max loaded)
- 14,500 lb
- Net cargo / payload (CCC)
- 2,958 lb
- Hitch / pin weight
- 2,008 lb
Capacities
- Fresh water
- 48 gal
- Grey water
- 135 gal
- Black water
- 90 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16" G
Sleeping & layout
- Sleeps
- Not published by Coachmen
- Awning
- 20'
- Wheel size
- 16"
- Picture caption prints
- 42' 6", 11,542 lb (UVW) — conflict with the table, stated not resolved
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 (no width published)
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 (14,500 lb) and the upper loaded pin estimate (3,625 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).
03 The Chaparral floorplan family
Coachmen’s 2025 fifth-wheel brochure lists 19 Chaparral floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Chaparral Lite 235RK | 27' 3\" | — | Profiled |
| Chaparral Lite 25RE | 29' 10\" | — | Profiled |
| Chaparral Lite 254RLS | 30' 9\" | — | Profiled |
| Chaparral Lite 274BH | 35' 11\" | — | Profiled |
| Chaparral Lite 284RL | 34' 2\" | — | Profiled |
| Chaparral Lite 30RLS | 34' 2\" | — | Profiled |
| Chaparral Lite 30BHS | 37' | — | Profiled |
| Chaparral 298RLS | 34' 8\" | — | Profiled |
| Chaparral Lite 368TBH | 42' | — | Profiled |
| Chaparral 336TSIK | 37' | — | Profiled |
| Chaparral 360IBL | 39' 9\" | — | Profiled |
| Chaparral 355FBX | 42' 7\" | — | Profiled |
| Chaparral 381DBL | 42' 6\" | — | Profiled |
| Chaparral 367BH | 42' 6\" | — | Profiled |
| Chaparral 334FL | 42' 6\" | — | Profiled |
| Chaparral 375BAF | 42' 6\" | — | Profiled |
| Chaparral 389DEK | 42' 4\" | — | Profiled |
| Chaparral 373MBRB | 42' 6\" | — | Profiled |
| Chaparral 393MBX | 42' 6\" | — | Profiled |
Coachmen’s 2025 fifth-wheel brochure lists 19 Chaparral floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Coachmen does not publish for the Chaparral 355FBX
Coachmen 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
11,450 lb dry and 14,000 lb GVWR, against this model’s 11,542 lb and 14,500 lb.
12,186 lb dry and 14,500 lb GVWR, against this model’s 11,542 lb and 14,500 lb.
06 Loading it for a trip
A full 48-gallon fresh tank is about 398 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 13% of the Chaparral 355FBX’s 2,958 lb cargo capacity, leaving 2,560 lb. Across 19 Chaparral floorplans the water share runs 13% to 22%, and 13 give up more than this one. Nearest on that share: Chaparral 336TSIK at 13% and Chaparral Lite 274BH at 14%. 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 Chaparral 381DBL, nearest on the published figures. It differs on 6 of the 8 fields both publish (this plan first): length 42 ft 7 in vs 42 ft 6 in; dry weight 11,542 lb vs 12,186 lb; cargo capacity 2,958 lb vs 2,314 lb; hitch weight 2,008 lb vs 2,040 lb; grey tank 135 gal vs 112 gal; black tank 90 gal vs 75 gal. They match on GVWR and fresh tank.
| Chaparral plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 14,500 | 12–15 of 19 | 8,900–15,500 |
| Dry weight (lb) | 11,542 | 12 of 19 | 6,950–13,080 |
| Cargo capacity (lb) | 2,958 | 17 of 19 | 1,779–3,172 |
| Hitch weight (lb) | 2,008 | 11 of 19 | 1,115–2,708 |
| Length | 42 ft 7 in | 19 of 19 | 27 ft 3 in–42 ft 7 in |
| Fresh tank (gal) | 48 | 9–19 of 19 | 40–48 |
| Grey tank (gal) | 135 | 18–19 of 19 | 33–135 |
| Black tank (gal) | 90 | 19 of 19 | 33–90 |
Either side of it by GVWR: Chaparral 360IBL is 500 lb lighter (14,000 lb GVWR); Chaparral 375BAF matches it at 14,500 lb GVWR.
| Nearest Chaparral siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Chaparral 355FBX | 42 ft 7 in | — | 11,542 | 14,500 | 2,958 | 2,008 | 48 |
| Chaparral 381DBL | 42 ft 6 in | — | 12,186 | 14,500 | 2,314 | 2,040 | 48 |
| Chaparral 367BH | 42 ft 6 in | — | 12,328 | 15,500 | 3,172 | 2,194 | 48 |
| Chaparral 375BAF | 42 ft 6 in | — | 12,422 | 14,500 | 2,078 | 2,152 | 48 |
| Chaparral 373MBRB | 42 ft 6 in | — | 13,031 | 15,000 | 1,969 | 2,219 | 48 |
| Chaparral Lite 368TBH | 42 ft 0 in | — | 9,850 | 12,500 | 2,650 | 1,974 | 40 |
All 19 Chaparral floorplans: Chaparral line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Chaparral 355FBX | 14,500 | 11,542 | — | 42 ft 7 in |
| Brookstone 290RL | 14,500 | 11,472 | — | 36 ft 4 in |
| Shasta Phoenix 370BAF | 14,500 | 12,421 | — | 42 ft 6 in |
| Ridgeway 36MBL | 14,495 | 12,200 | 8 | 41 ft 0 in |
| Wolf Pack 290PACK13 | 14,470 | 11,173 | — | 39 ft 5 in |
| Cedar Creek 311RL | 14,435 | 11,244 | — | 37 ft 0 in |
| Sierra 3480RL | 14,609 | 11,509 | — | 38 ft 6 in |
Against the Chaparral 355FBX: the Brookstone 290RL is 6 ft shorter; the Ridgeway 36MBL is 5 lb lighter and 2 ft shorter.
08 Common questions about the Chaparral 355FBX
How much does the Chaparral 355FBX weigh?
11,542 lb dry; 14,500 lb GVWR, the most it may weigh loaded.
How much can the Chaparral 355FBX carry?
2,958 lb, 20% of its GVWR (median across 334 fifth wheels here: 18%). A full fresh tank uses 398 lb of it.
What is the pin weight of the Chaparral 355FBX?
2,008 lb as published, 17% of the dry weight (median across 540 fifth wheels here: 19%).
What size tow vehicle does the Chaparral 355FBX need?
A tow rating of at least 14,500 lb, plus payload for the loaded pin weight, passengers and cargo.
What are the tank capacities on the Chaparral 355FBX?
Fresh 48, grey 135, black 90 gallons. Off hookups, fresh water runs out first.
How long is the Chaparral 355FBX?
42' 7" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
10 of the 18 fields this catalogue tracks are published for the Chaparral 355FBX. Not published: exterior width, interior height, 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: forestriverinc.com, library.rvusa.com (linked below); the full source note is at the foot of the page.