
The amount of weight you can safely put in a car trunk depends primarily on your vehicle's payload capacity, not just the trunk's physical space. On average, most standard sedans can handle 800 to 1,000 pounds of total passenger and cargo weight, while larger SUVs and trucks can manage 1,300 pounds or more. The safest way to find your specific car's limit is to check the Gross Vehicle Weight Rating (GVWR) sticker, usually found on the driver's side door jamb, and subtract your car's curb weight.
Exceeding this limit is a serious safety risk. An overloaded vehicle experiences reduced braking efficiency, inaccurate steering, and puts excessive strain on the suspension and tires, which can lead to a blowout. The weight distribution is also critical. Placing too much weight behind the rear axle can make the front of the car feel light and unstable, especially during braking or cornering.
Before a big trip, it's wise to weigh your intended load. Many recycling centers or truck stops have public scales. When packing, place the heaviest items low and as far forward as possible, directly over or in front of the rear axle. Avoid piling items above the seatbacks, as this can become dangerous projectiles in a sudden stop.
| Vehicle Type | Typical Payload Capacity (lbs) | Key Considerations |
|---|---|---|
| Compact Sedan (e.g., Honda Civic) | 850 - 950 | Focus on even distribution; trunk space is limited. |
| Midsize SUV (e.g., Ford Explorer) | 1,200 - 1,500 | Check if third-row seats affect cargo volume. |
| Full-Size Pickup Truck (e.g., Ford F-150) | 1,500 - 3,300 | Higher capacity is for the entire vehicle, including bed. |
| Minivan (e.g., Chrysler Pacifica) | 1,200 - 1,400 | Low load floor makes loading easier, but don't exceed limits. |
| Subcompact Hatchback (e.g., Toyota Corolla Hatch) | 800 - 900 | Lower capacity; be mindful of rear visibility when packed. |

Check the sticker inside your driver's side door frame. Look for "GVWR" and "Curb Weight." Subtract the curb weight from the GVWR, and that's your total safe weight for people and stuff. For most cars, once you subtract the weight of the passengers, you've got about 300-500 pounds left for the trunk. It’s not just about space; it’s about what your shocks and brakes can handle. Overloading it makes the car feel sluggish and unsafe to drive.

I learned this the hard way moving a bunch of paving stones. The back of the car was sagging, and it felt like I was driving a boat. The real danger was braking—it took forever to stop. Now I always think about the car's suspension and braking system. They're designed for a specific load. Piling in too much weight, especially if it's all in the back, messes with the car's balance. It’s not worth the risk of damaging your car or causing an accident. When in doubt, make a second trip.

Think of it as an engineering question. The payload capacity is a fixed number determined by the vehicle's structure, suspension, and powertrain. The trunk is just one part of that equation. For a proper estimate, you need to consider the weight of all passengers and fuel first. What's left is for cargo. A common mistake is filling the trunk to the brim with dense items like books or tools, which can easily surpass the limit. Always distribute weight evenly and secure your load to prevent shifting.


