How Big is Too Big?

Follow these steps when you’re considering upgrading to a larger trailer or motorhome.

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Words by Perry Mack (Updated February 2026) 

Note: This article was originally published in 2023 and has been extensively refreshed to reflect current 2026 towing technology, EV considerations, and updated park regulations. 

Many of us started RVing by camping with a car, van, or 4x4 before upgrading to a tent trailer or small travel trailer. Many of us become afflicted with ‘two-foot-itis,’ the condition that results in wanting just a slightly larger RV annually. It begs the question: how big is too big? 

Cost can be a limiting factor, but with modern long-term financing, even large RVs can be manageable monthly. If cost isn’t the barrier, what is? 

1. The "Destination" Filter 

If you’re thinking seriously about upgrading, ask yourself where you’re planning to go. In 2026, provincial and state parks are more popular than ever, and many have strict size limits. Make a list of a dozen places you want to visit in the next few years and check their site dimensions. 

We chose our 9 m (28 ft) Black Rock travel trailer because it’s comfortably large enough for long getaways yet small enough to fit into most national and provincial parks, as well as the front-country recreation sites we enjoy. In British Columbia, these sites are often smaller and unserviced; a massive rig would simply be "locked out" of these hidden gems. 

2. The Towing Math (ICE vs. EV) 

If the parks don't limit you, your vehicle might. Every towable RV has a Gross Vehicle Weight Rating (GVWR) and every vehicle has a towing limit. 

Important for 2026: If you are towing with an Electric Vehicle (EV), remember that weight and aerodynamics drastically impact your range. While an EV truck might be rated for 11,000 lbs, towing a high-profile "big" trailer can cut your battery range by 50% or more. 

Even with internal combustion engines, hitting 80% of your vehicle’s max capacity can cause grief on steep grades or when merging into 2026 highway traffic. A good rule of thumb? Purchase your tow vehicle after you decide on an RV. 

In our case, we chose a Chevy Silverado 3500 HD diesel to tow our Black Rock. Overkill? Maybe. But it prevents us from being underpowered and allows us to upgrade to a fifth wheel later without the financial sting of trading in an inadequate truck. 

3. The Confidence Gap 

Most of us have a "comfort threshold" for driving or towing. In 2026, technology makes this easier—most new rigs come equipped with 360-degree bird's-eye cameras and blind-spot sensors. However, tech isn't a substitute for skill. 

Your confidence will increase with practice. We suggest: 

  • Practice Drives: Take the rig  down a familiar, quiet road. 
  • Pull-Throughs: Start your season by reserving pull-through sites to avoid backing up until you’re ready. 
  • Communication: Use the backup camera, but supplement it with two-way radios (or a hands-free phone call) with your spotter. 

4. Legal Requirements & Endorsements 

You must stay aware of licensing laws. In many states and provinces, a recreational trailer endorsement is required if your RV weighs more than 4,600 kg (10,000 lbs). You also need specific endorsements for air brakes. 

In British Columbia, you can take a written test for a learner’s permit and a subsequent road test. If you don’t want to go through the licensing hurdle, keep your GVWR under the 4,600 kg (10,000 lbs) threshold. Towing without the proper license can void your insurance—a risk that is simply too high in today’s litigious world. 

The Five-Year Rule 

The "best" RV for our family has evolved over decades. We suggest choosing a size that meets your needs for at least the next five years. This gives you time to grow into the rig, gain experience, and avoid the depreciation hit of frequent trading.