RV length limits at Washington campgrounds
Every published length limit within reach of Seattle, in one table. A trailer is measured against the trailer cap where one is published, which is always the tighter number. Where a park does not publish a limit, this says so rather than guessing.
| Campground | RV cap | Trailer cap | 18 ft | 21 ft | 24 ft | 27 ft | 30 ft | 32 ft | 35 ft |
|---|---|---|---|---|---|---|---|---|---|
| FairholmeOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Fairholme | 21 feet: a motorhome fits, a trailer fits at Fairholme | 24 feet: a motorhome does not fit, a trailer does not fit at Fairholme | 27 feet: a motorhome does not fit, a trailer does not fit at Fairholme | 30 feet: a motorhome does not fit, a trailer does not fit at Fairholme | 32 feet: a motorhome does not fit, a trailer does not fit at Fairholme | 35 feet: a motorhome does not fit, a trailer does not fit at Fairholme |
| Heart O' the HillsOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Heart O' the Hills | 21 feet: a motorhome fits, a trailer fits at Heart O' the Hills | 24 feet: a motorhome does not fit, a trailer does not fit at Heart O' the Hills | 27 feet: a motorhome does not fit, a trailer does not fit at Heart O' the Hills | 30 feet: a motorhome does not fit, a trailer does not fit at Heart O' the Hills | 32 feet: a motorhome does not fit, a trailer does not fit at Heart O' the Hills | 35 feet: a motorhome does not fit, a trailer does not fit at Heart O' the Hills |
| Hoh Rain ForestOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Hoh Rain Forest | 21 feet: a motorhome fits, a trailer fits at Hoh Rain Forest | 24 feet: a motorhome does not fit, a trailer does not fit at Hoh Rain Forest | 27 feet: a motorhome does not fit, a trailer does not fit at Hoh Rain Forest | 30 feet: a motorhome does not fit, a trailer does not fit at Hoh Rain Forest | 32 feet: a motorhome does not fit, a trailer does not fit at Hoh Rain Forest | 35 feet: a motorhome does not fit, a trailer does not fit at Hoh Rain Forest |
| KalalochOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Kalaloch | 21 feet: a motorhome fits, a trailer fits at Kalaloch | 24 feet: a motorhome does not fit, a trailer does not fit at Kalaloch | 27 feet: a motorhome does not fit, a trailer does not fit at Kalaloch | 30 feet: a motorhome does not fit, a trailer does not fit at Kalaloch | 32 feet: a motorhome does not fit, a trailer does not fit at Kalaloch | 35 feet: a motorhome does not fit, a trailer does not fit at Kalaloch |
| MoraOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Mora | 21 feet: a motorhome fits, a trailer fits at Mora | 24 feet: a motorhome does not fit, a trailer does not fit at Mora | 27 feet: a motorhome does not fit, a trailer does not fit at Mora | 30 feet: a motorhome does not fit, a trailer does not fit at Mora | 32 feet: a motorhome does not fit, a trailer does not fit at Mora | 35 feet: a motorhome does not fit, a trailer does not fit at Mora |
| South BeachOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at South Beach | 21 feet: a motorhome fits, a trailer fits at South Beach | 24 feet: a motorhome does not fit, a trailer does not fit at South Beach | 27 feet: a motorhome does not fit, a trailer does not fit at South Beach | 30 feet: a motorhome does not fit, a trailer does not fit at South Beach | 32 feet: a motorhome does not fit, a trailer does not fit at South Beach | 35 feet: a motorhome does not fit, a trailer does not fit at South Beach |
| StaircaseOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Staircase | 21 feet: a motorhome fits, a trailer fits at Staircase | 24 feet: a motorhome does not fit, a trailer does not fit at Staircase | 27 feet: a motorhome does not fit, a trailer does not fit at Staircase | 30 feet: a motorhome does not fit, a trailer does not fit at Staircase | 32 feet: a motorhome does not fit, a trailer does not fit at Staircase | 35 feet: a motorhome does not fit, a trailer does not fit at Staircase |
| OzetteOlympic National Park | 21 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Ozette | 21 feet: a motorhome fits, a trailer fits at Ozette | 24 feet: a motorhome does not fit, a trailer does not fit at Ozette | 27 feet: a motorhome does not fit, a trailer does not fit at Ozette | 30 feet: a motorhome does not fit, a trailer does not fit at Ozette | 32 feet: a motorhome does not fit, a trailer does not fit at Ozette | 35 feet: a motorhome does not fit, a trailer does not fit at Ozette |
| Log Cabin Resort RV & CampgroundOlympic National Park | 35 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 21 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 24 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 27 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 30 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 32 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground | 35 feet: a motorhome fits, a trailer fits at Log Cabin Resort RV & Campground |
| Sol Duc Hot Springs RV ParkOlympic National Park | 36 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 21 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 24 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 27 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 30 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 32 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park | 35 feet: a motorhome fits, a trailer fits at Sol Duc Hot Springs RV Park |
| Cougar RockMount Rainier National Park | 35 ft | 27 ft | 18 feet: a motorhome fits, a trailer fits at Cougar Rock | 21 feet: a motorhome fits, a trailer fits at Cougar Rock | 24 feet: a motorhome fits, a trailer fits at Cougar Rock | 27 feet: a motorhome fits, a trailer fits at Cougar Rock | 30 feet: a motorhome fits, a trailer does not fit at Cougar Rock | 32 feet: a motorhome fits, a trailer does not fit at Cougar Rock | 35 feet: a motorhome fits, a trailer does not fit at Cougar Rock |
| OhanapecoshMount Rainier National Park | 32 ft | 27 ft | 18 feet: a motorhome fits, a trailer fits at Ohanapecosh | 21 feet: a motorhome fits, a trailer fits at Ohanapecosh | 24 feet: a motorhome fits, a trailer fits at Ohanapecosh | 27 feet: a motorhome fits, a trailer fits at Ohanapecosh | 30 feet: a motorhome fits, a trailer does not fit at Ohanapecosh | 32 feet: a motorhome fits, a trailer does not fit at Ohanapecosh | 35 feet: a motorhome does not fit, a trailer does not fit at Ohanapecosh |
| White RiverMount Rainier National Park | 27 ft | 18 ft | 18 feet: a motorhome fits, a trailer fits at White River | 21 feet: a motorhome fits, a trailer does not fit at White River | 24 feet: a motorhome fits, a trailer does not fit at White River | 27 feet: a motorhome fits, a trailer does not fit at White River | 30 feet: a motorhome does not fit, a trailer does not fit at White River | 32 feet: a motorhome does not fit, a trailer does not fit at White River | 35 feet: a motorhome does not fit, a trailer does not fit at White River |
| Moran State Park, Orcas IslandSan Juan Islands | 45 ft | Not stated | 18 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 21 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 24 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 27 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 30 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 32 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island | 35 feet: a motorhome fits, a trailer fits at Moran State Park, Orcas Island |
Worked examples
- A median travel trailer is 24 feet, so it does not clear Mount Rainier's White River cap of 18 feet for a trailer. Across all 193 listings, 20% clear it.
- A median camper van is 19 feet, so it clears Mount Rainier's White River cap of 27 feet for a motorhome. Across all 99 listings, 98% clear it.
- A median class c motorhome is 25 feet, so it clears Mount Rainier's White River cap of 27 feet for a motorhome. Across all 83 listings, 63% clear it.
- A median class b motorhome is 20 feet, so it clears Mount Rainier's White River cap of 27 feet for a motorhome. Across all 61 listings, 100% clear it.
- A median class a motorhome is 32 feet, so it does not clear Mount Rainier's White River cap of 27 feet for a motorhome. Across all 24 listings, 8% clear it.
Limits quoted from the National Park Service pages linked on each destination. Washington State Parks limits are absent because they are not published on parks.wa.gov and sit inside the reservation system one park at a time. Measured September 5, 2026. Limits and closures change.