01 What makes it unique
The Influence 3705RD is on Grand Design’s 2027 Influence roster. Grand Design’s own floorplan page lists it at 41 ft 10 in long, 12 ft 9 in tall and 8 ft 5 in wide, on two axles with three slide-outs, sleeping 4.
The weights are Grand Design’s: an unloaded vehicle weight of 15,300 lb, a GVWR of 18,000 lb and a pin weight of 2,600 lb. Grand Design publishes no cargo carrying capacity for it, so this page does not print one and does not compute one. Tanks are 83 gal fresh, 106 gal grey and 53 gal black.
Grand Design’s page names the 3503GK and 3003RL as comparison floorplans. The published pin weight is the figure to check first against a tow vehicle; the loaded figure will be higher.
How the 3705RD differs from the other seven Influence floorplans. Most distinctive first. Each rank counts only the siblings that publish that field, and a figure most of them share is left out. Not every one of these pages covers the same model years as this one (2027); each figure is the one its own page prints, so a rank compares pages, not one model year.
- Dry weight, 15,300 lb: second-heaviest of eight, between the 3704BH (14,798 lb) and the 3904BH (16,000 lb).
- Pin weight as a share of dry weight, 17%: second-smallest of eight, between the 3904BH (16.9%) and the 3003RL and 3704BH (18.4%).
- Length, 41 ft 10 in: third-longest of eight, between the 3704BH (40 ft 4 in) and the 3804DS (42 ft 6 in).
- Pin weight, 2,600 lb: fourth-lightest of eight, between the 3203GK (2,471 lb) and the 3503GK (2,670 lb).
- Exterior height, 12 ft 9 in: lowest of eight, level with the 3003RL and 3904BH; next are the 2903RL, 3203GK and three others (13 ft 5 in).
- GVWR, 18,000 lb: shared with the 3003RL; of eight, four lower and two higher, nearest the 3203GK, 3503GK and 3704BH (16,800 lb) and the 3804DS and 3904BH (19,000 lb).
- Fresh tank, 83 gal: largest of eight, level with the 3003RL, 3804DS and 3904BH; next are the 2903RL, 3203GK and two others (81 gal).
- Sleeping capacity, 4: shared with the 2903RL, 3003RL and 3503GK; of eight, one smaller and three larger, nearest the 3203GK (3) and the 3804DS (6).
Next to the 3704BH (2026 page), the nearest lighter floorplan by dry weight, the 3705RD is 502 lb heavier by dry weight, has a GVWR 1,200 lb higher, has a pin weight 128 lb lighter, is 1 ft 6 in longer, stands 8 in lower, has a fresh tank 2 gal larger, has a black tank 53 gal smaller, sleeps four fewer and has one fewer slide-out; the two publish the same grey tank.
Next to the 3904BH (2026 page), the nearest heavier floorplan by dry weight, the 3705RD is 700 lb lighter by dry weight, has a GVWR 1,000 lb lower, has a pin weight 100 lb lighter, is 10 in shorter, has a black tank 53 gal smaller, sleeps five fewer and has one fewer slide-out; the two publish the same exterior height, fresh tank and grey tank.
02 Full specifications
Dimensions
- Exterior length
- 41' 10"
- Exterior height
- 12' 9"
- Exterior width
- 8' 5"
Weights
- Dry / unit base weight (UVW)
- 15,300 lbs
- GVWR (max loaded)
- 18,000 lbs
- Net cargo / payload
- Not published by Grand Design
- Hitch / pin weight
- 2,600 lbs
Capacities
- Fresh water
- 83 gal
- Grey water
- 106 gal
- Black water
- 53 gal
- Refrigerator
- 16 cu ft
Construction
- Construction
- Laminated (Grand Design’s term)
- Insulation (R-value)
- Walls R-11 · Floor R-45 · Roof R-40 · Slide-outs R-11
Running gear
- Axles
- 2
- Hitch
- Fifth-wheel (in-bed)
- Tire size
- ST215/75R 17.5 LRH
- GAWR, as Grand Design lists it
- 16,000 lbs
- Solar
- Influence Solar Package (330w Solar Panel, Controller, Inverter Prep) (standard feature, as Grand Design lists it)
Galley & systems
- Refrigerator
- 16 cu ft
- A/C
- 30,000 BTU
- Furnace
- 35,000 BTU
- Water heater
- Tankless
Sleeping & layout
- Sleeps
- 4
- Slides
- 3
- Awnings
- 2
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
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 (18,000 lb) and the upper loaded pin estimate (4,500 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 Influence floorplan family
Influence is Grand Design's residential-style full-profile fifth wheel on the 101-inch wide-body platform that underpins the flagship Solitude, offered at a lower entry point — a cross-shop against Keystone's Cougar and Montana, Jayco's Eagle and North Point, with the Grand Design Reflection a step below. Every current floorplan on Grand Design’s roster has its own page here. The 3705RD on this page is highlighted.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 2903RL | 34 ft | 4 | Rear living, kitchen island, front master |
| 3003RL | 34 ft | 4 | Rear living, kitchen island, big payload |
| 3203GK | 35 ft | 3 | Rear galley kitchen, private front bedroom |
| 3503GK | 38 ft | 4 | Rear galley kitchen, stretched living space |
| 3704BH | 40 ft | 8 | Private bunk room, quad slides, family |
| 3705RD | 41 ft | 4 | Rear den (plan-code suffix); 2027 page, 3 slides, sleeps 4 |
| 3804DS | 42 ft | 6 | Two masters, two full baths, loft |
| 3904BH | 42 ft | 9 | Bunkhouse, outdoor kitchen, bath-and-a-half |
The 3705RD on this page carries Grand Design’s own 2027 figures; the other rows link to each floorplan’s page, where its own record and source are given.
04 Notes on this floorplan
Grand Design’s 2027 figures
UVW 15,300 lb, GVWR 18,000 lb and pin 2,600 lb, as Grand Design lists them.
No cargo figure published
Grand Design prints no cargo carrying capacity for the 3705RD; read the cargo label on the unit itself.
Check the loaded pin
The published pin weight grows with cargo — weigh loaded and check your tow vehicle’s ratings.
05 How it compares
Named on Grand Design’s 3705RD page as a comparison floorplan: UVW 13,700 lb, GVWR 18,000 lb (Grand Design, 2027).
Named on Grand Design’s 3705RD page as a comparison floorplan: UVW 12,800 lb, GVWR 16,800 lb (Grand Design, 2027).
Every current Influence floorplan side by side.
07 Where this floorplan sits
Closest sibling: the Influence 3503GK, nearest on the published figures. It differs on 5 of the 8 fields both publish (this plan first): length 41 ft 10 in vs 38 ft 3 in; dry weight 15,300 lb vs 13,868 lb; GVWR 18,000 lb vs 16,800 lb; hitch weight 2,600 lb vs 2,670 lb; fresh tank 83 gal vs 81 gal. They match on sleeps, grey tank and black tank.
| Influence plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 18,000 | 5–6 of 8 | 15,000–19,000 |
| Dry weight (lb) | 15,300 | 7 of 8 | 11,800–16,000 |
| Hitch weight (lb) | 2,600 | 4 of 8 | 2,190–2,911 |
| Length | 41 ft 10 in | 6 of 8 | 34 ft 5 in–42 ft 8 in |
| Fresh tank (gal) | 83 | 5–8 of 8 | 81–83 |
| Black tank (gal) | 53 | 1–5 of 8 | 53–106 |
| Sleeps | 4 | 2–5 of 8 | 3–9 |
Either side of it by GVWR: Influence 3003RL matches it at 18,000 lb GVWR; Influence 3804DS is 1,000 lb heavier (19,000 lb GVWR).
| Nearest Influence siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Influence 3705RD | 41 ft 10 in | 4 | 15,300 | 18,000 | — | 2,600 | 83 |
| Influence 3503GK | 38 ft 3 in | 4 | 13,868 | 16,800 | 2,932 | 2,670 | 81 |
| Influence 3003RL | 34 ft 11 in | 4 | 12,500 | 18,000 | 5,500 | 2,300 | 83 |
| Influence 3203GK | 35 ft 11 in | 3 | 12,712 | 16,800 | 4,088 | 2,471 | 81 |
| Influence 2903RL | 34 ft 5 in | 4 | 11,800 | 15,000 | 3,200 | 2,190 | 81 |
| Influence 3804DS | 42 ft 6 in | 6 | 14,603 | 19,000 | 4,397 | 2,911 | 83 |
All 8 Influence floorplans: Influence line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 3705RD | 18,000 | 15,300 | 4 | 41 ft 10 in |
| Cedar Creek 381MUD | 18,000 | 15,429 | 8 | 43 ft 5 in |
| Momentum 325G | 18,000 | 12,603 | 6 | 35 ft 6 in |
| North Point 383FLRB | 18,000 | 14,840 | 6 | 42 ft 2 in |
| Paradigm 375RD | 18,000 | 14,771 | 5 | 41 ft 9 in |
| Puma Grand Mesa 395FKL | 18,000 | 14,929 | — | 42 ft 7 in |
| Bighorn 38RE | 17,995 | 15,275 | 4 | 42 ft 6 in |
Against the 3705RD: the Cedar Creek 381MUD is 2 ft longer and sleeps 4 more; the Momentum 325G is 6 ft shorter and sleeps 2 more; the North Point 383FLRB sleeps 2 more.
08 Common questions about the 3705RD
How much does the 3705RD weigh?
15,300 lb dry; 18,000 lb GVWR, the most it may weigh loaded.
What is the pin weight of the 3705RD?
2,600 lb as published, 17% of the dry weight (median across 411 fifth wheels here: 19%).
What size tow vehicle does the 3705RD need?
A tow rating of at least 18,000 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the 3705RD sleep?
It is rated to sleep 4. 3 of the 8 Influence floorplans that publish a count sleep more.
What are the tank capacities on the 3705RD?
Fresh 83, grey 106, black 53 gallons. Off hookups, fresh water runs out first.
How long is the 3705RD?
41' 10" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
16 of the 18 fields this catalogue tracks are published for the 3705RD. Not published: cargo capacity (CCC), interior height.
Sourcing rules: methodology.
10 Manuals & documents
Sources: granddesignrv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
No recall campaign or owner complaint in our NHTSA data names the Influence line. Read that as no result found, not as a clean record.
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 Influence line page.