Can You Tow a Boat Behind a Travel Trailer in Washington? What Every Angler Needs to Know
Washington State offers some of the best fishing opportunities in the Pacific Northwest. From salmon fishing in Puget Sound and halibut adventures along the coast to bass tournaments on Banks Lake and kokanee fishing at Lake Roosevelt, anglers across the state spend countless weekends chasing their next big catch.
For RV owners who also own boats, combining camping and fishing creates the ultimate outdoor lifestyle. But many people assume they can simply hook their boat behind their travel trailer and head for the lake. Unfortunately, Washington law isn’t that simple.
If you’re planning a trip to Lake Chelan, Banks Lake, the Olympic Peninsula, or the Washington coast, understanding the state’s towing laws is essential before attempting to tow multiple trailers.
Here’s what every Washington angler should know.
Is Double Towing Legal in Washington?
This is one of the most common questions among RV owners and fishermen.
Many people refer to towing a boat behind an RV as:
- Double towing
- Triple towing
- Tandem towing
A typical setup might include:
- Truck
- Travel trailer or fifth wheel
- Boat trailer
While some western states allow recreational double towing, Washington law generally prohibits combinations consisting of more than two vehicles, except for certain commercial combinations covered under RCW 46.44.037. In other words, a pickup truck towing a travel trailer with a boat behind it is generally not legal on Washington roads.
Because regulations can change and special exceptions exist for commercial operations, RV owners should always verify current Washington State laws before traveling.
Why Understanding Towing Laws Matters
Many anglers spend months planning trips to:
- Banks Lake
- Potholes Reservoir
- Lake Chelan
- Lake Roosevelt
- Westport
- Puget Sound
- The Olympic Peninsula
Nothing can ruin a vacation faster than discovering your towing setup isn’t legal—or worse, being involved in an accident while exceeding vehicle or trailer limitations.
Before heading out, always consider:
- Vehicle towing capacity
- Payload ratings
- Trailer brake requirements
- Hitch ratings
- Overall length
- Insurance coverage
- Driver experience
Washington’s mountain passes and winding roads can quickly turn a heavy combination into a stressful experience.
Understanding Weight Ratings
One of the biggest mistakes new RV owners make is focusing only on the weight of the travel trailer.
Everything counts.
Tow Vehicle Weight
Your truck’s ratings include:
- GVWR (Gross Vehicle Weight Rating)
- Payload capacity
- Rear axle weight ratings
- GCWR (Gross Combined Weight Rating)
Travel Trailer Weight
Your RV’s actual camping weight includes:
- Water tanks
- Batteries
- Propane
- Food
- Clothing
- Chairs
- Tools and supplies
Boat Weight
Don’t forget:
- Boat trailer
- Fuel
- Batteries
- Fishing gear
- Coolers
- Ice
- Safety equipment
A setup that seems manageable on paper can quickly exceed your truck’s capabilities.
Example
- Half-ton pickup: 6,500 pounds
- Travel trailer loaded: 7,000 pounds
- Fishing boat and trailer: 2,500 pounds
Combined weight:
16,000+ pounds
Weight matters, especially when climbing mountain grades.
Alternatives for Washington Boat Owners
Since towing a third vehicle is generally prohibited, many anglers choose other options.
Bring the Boat Only
Stay in cabins, campgrounds with rental units, or tent camp while enjoying your favorite fishing destinations.
Bring the RV Only
Leave the boat at home and enjoy:
- Shore fishing
- Kayaking
- Guided fishing trips
- Paddleboarding
Travel With Two Vehicles
Some families bring two vehicles:
- One towing the RV.
- One towing the boat.
Consider a Toy Hauler
Toy haulers provide extra storage space for:
- Inflatable boats
- Kayaks
- Paddleboards
- Fishing gear
- Coolers
- Bikes
If you enjoy bringing lots of outdoor equipment, a toy hauler can eliminate the need for an additional trailer.
Looking for a family-friendly layout? Read our guide to the Best RVs for Families in 2026: Travel Trailers, Toy Haulers & Fifth Wheels Compared.
Washington’s Mountain Passes Add Extra Challenges
Washington is beautiful, but towing through the state can be demanding.
Popular destinations often require crossing:
- Snoqualmie Pass
- Stevens Pass
- White Pass
- Blewett Pass
- Chinook Pass
Long Climbs
Heavy loads create:
- Increased transmission temperatures
- Engine strain
- Reduced fuel economy
Steep Descents
Proper braking becomes critical.
Use:
- Tow/haul mode
- Lower gears
- Trailer brakes
- Safe following distances
Crosswinds
Open areas around lakes and mountain passes can create strong gusts that affect towing stability.
Slower speeds and extra caution make a huge difference.
Best Tow Vehicles for Anglers
Many trucks can tow an RV, but serious anglers often benefit from heavy-duty trucks.
Ford Super Duty
Popular because of:
- Excellent payload ratings
- Strong diesel options
- High towing capacities
Ram Heavy Duty
Offers:
- Outstanding torque
- Comfortable ride
- Great mountain performance
Chevrolet Silverado HD
Known for:
- Reliability
- Towing technology
- Powerful engine options
GMC Sierra HD
A favorite among RV owners thanks to:
- Premium features
- Strong towing capability
- Excellent stability
Heavy-duty diesel trucks often provide more confidence when towing through Washington’s mountains.
Trailer Brakes Matter More Than You Think
Brakes are one of the most overlooked safety components.
Regularly inspect:
- Brake wiring
- Brake pads
- Breakaway switches
- Brake controllers
- Bearings
Proper trailer brakes help provide:
- Better control
- Smoother stops
- Less wear on your truck
- Increased safety
Many towing accidents happen because trailer brakes weren’t functioning properly.
Best Fishing Destinations for RV Owners
Washington offers endless opportunities for anglers and campers alike.
Banks Lake
Known for:
- Walleye
- Smallmouth bass
- Great boat launches
- Scenic camping
Lake Roosevelt
Famous for:
- Kokanee salmon
- Rainbow trout
- Miles of shoreline
Potholes Reservoir
Popular among serious fishermen because of its:
- Walleye population
- Bass fishing
- Water recreation
Lake Chelan
Perfect for:
- Fishing
- Boating
- Swimming
- Family camping
Puget Sound
Offers world-class:
- Salmon fishing
- Lingcod
- Bottom fishing
Washington’s diverse waterways provide incredible opportunities for RV adventures.
Combine Fishing With Amazing Camping Destinations
One of the best parts about RV ownership is extending a fishing trip into a full vacation.
Deception Pass State Park
Known for:
- Stunning scenery
- Boating access
- Hiking trails
- Planning a visit? Read our complete Deception Pass State Park RV Guide: Reservations, Sites & What to Do Once You’re There.
Olympic Peninsula
Perfect for:
- Salmon fishing
- Coastal camping
- Rainforest hikes
Explore more coastal adventures in our Olympic National Park RV Camping Guide.
Mount Rainier Region
Offers:
- Rivers and lakes
- Scenic campgrounds
- Endless hiking opportunities
See our Mount Rainier RV Camping Guide for campground recommendations and reservation tips.
Travel Trailer vs. Fifth Wheel for Anglers
Both RV styles work well for fishing enthusiasts.
Travel Trailer Advantages
- Lower cost
- Lighter weight
- Easier to tow
- Greater flexibility
Fifth Wheel Advantages
- More living space
- Better towing stability
- Larger storage compartments
- Ideal for longer trips
If you’re still deciding, comparing both styles can help determine which RV best fits your lifestyle.
Read our Travel Trailer vs. Fifth Wheel: Which Is Right for Washington State Roads?
Pre-Trip Towing Checklist
Before every trip:
Check Tires
Inspect:
- Tire pressure
- Tread depth
- Sidewalls
Verify Lights
Confirm:
- Brake lights
- Running lights
- Turn signals
Test Brakes
Ensure everything functions properly.
Secure Gear
Fishing rods, tackle boxes, coolers, and chairs should be secured before driving.
Inspect Hitches
Check:
- Couplers
- Safety chains
- Receiver pins
- Weight distribution systems
A 15-minute inspection can prevent major problems on the road.
Don’t Forget RV Maintenance
Washington’s wet climate can be tough on RVs.
Regular maintenance helps prevent expensive repairs and unexpected breakdowns.
Inspect:
- Bearings
- Suspension
- Roof seals
- Batteries
- Electrical connections
Before heading to Lake Chelan, Banks Lake, or the coast, Tacoma RV Center’s Service Department can help prepare your RV for the season.
Services include:
- Bearing packs
- Brake service
- Roof inspections
- Appliance repairs
- Winterization and de-winterization
- Complete RV inspections
Tacoma RV Center Service Department
Need service before your next fishing trip?
📞 253-252-4500
📍 8507 Pacific Hwy E, Fife, WA 98424
Before your next adventure, check out our Spring RV Maintenance Checklist: Get Your Trailer Ready for PNW Summer Camping.
Final Thoughts
Washington offers some of the finest fishing destinations in the Pacific Northwest, and RV ownership makes those adventures even more memorable. But before hooking a boat behind your travel trailer, it’s important to understand that Washington generally limits combinations to two vehicles, making the common truck + RV + boat setup illegal except for certain commercial exceptions.
Fortunately, there are plenty of ways to enjoy both camping and fishing without sacrificing safety or running afoul of state law. Whether that means traveling with two vehicles, choosing a toy hauler, or simply enjoying Washington’s incredible shoreline fishing, proper planning can help create unforgettable weekends outdoors.
If you’re looking for a travel trailer, toy hauler, or fifth wheel designed for Washington adventures, visit Tacoma RV Center in Fife.
That doesn’t mean anglers have to give up their favorite adventures. Choosing the right RV, using a toy hauler, or traveling with separate tow vehicles can help you enjoy destinations like Lake Chelan, Banks Lake, Puget Sound, and the Olympic Peninsula safely and legally. If you’re looking for inspiration on where to take your next trip, check out our Complete Washington State RV Camping Guide for 2026 for some of the best campgrounds and road trip destinations across the state. With the right setup and a little planning, Washington anglers can continue creating unforgettable memories on the water and around the campfire.
