1. Understand Your Vehicle's Weight
Before choosing a jack, check your vehicle's gross vehicle weight (GVW). This information is usually found in the owner’s manual or on a label inside the driver’s door. As a general rule, you want a jack that can handle at least ¾ of your vehicle's weight, since you’re typically only lifting one corner or side of the vehicle.

2. Common Jack Sizes and Their Use Cases
Jack Capacity | Suitable For |
2.5Ton/2Ton | Small sedans, coupes |
3 Ton | Most SUVs, midsize cars, light trucks |
4 Ton+ | Full-size trucks, heavy-duty SUVs |
If you're unsure, a 3-ton jack is often the most versatile choice for general household use.
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3. Consider Lift Range
The minimum and maximum lifting height is just as important as weight capacity. If you drive a low-profile sports car, you’ll need a jack with a minimum height of around 3 inches (75 mm). For lifted trucks or SUVs, ensure the jack can rise to 18–21 inches (450–530 mm).
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4. Floor Jack Types: Which One to Choose?
l Hydraulic Floor Jack: Durable and powerful, best for garages.
l Scissor Jack: Compact and great for emergency kits.
l Bottle Jack: High lifting, good for trucks, but less stable on uneven surfaces.
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5. Don’t Forget Safety Accessories
Always pair your jack with jack stands. Never rely solely on the jack to hold a vehicle in place — it’s a tool for lifting, not for supporting long-term.
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Conclusion
So, what size floor jack do you need? The answer depends on:
l Your vehicle’s weight
l Your ground clearance
l Where and how often you’ll use the jack
l As a starting point, a 3-ton hydraulic floor jack with a 75–510mm lifting range will suit most needs for cars and SUVs.