What Size Floor Jack Do I Need?

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Below: how floor jack tonnage works, a comparison across ratings, a sizing checklist, and essential clearance requirements.

What size floor jack do I need? How jack tonnage works

Floor jack capacity is rated in tons. When lifting a vehicle for tire changes or brake service, a floor jack never lifts the entire vehicle at once; it raises a single corner or axle.

Because the engine and transmission concentrate mass over the drive wheels, one axle carries a larger share of the total weight. Even so, a 2-ton hydraulic jack (rated at 4,000 lbs) provides ample margin to raise an axle on standard cars. A 3-ton unit (rated at 6,000 Pound capacity or 6,600 pounds depending on the maker) provides extra headroom for heavier SUVs and pickup trucks.

Check the gross vehicle weight rating (GVWR) and gross axle weight ratings (GAWR) on the safety certification label inside the driver door jamb, and consult the owner manual for vehicle curb weight. Sizing your jack capacity to exceed the lifted axle load keeps the hydraulic cylinder within its safe working limits.

Floor jack tonnage comparison: from 1.5-ton to 5-ton

Manufacturers publish distinct capacities and dimensions across their product lines:

• 1.5-Ton (3,000 lb to 3,300 lb): Lightweight compacts and track use. BIG RED lists 3,000 lb capacity and 3.5 inches minimum height; SATA lists a 3,300 lb rating.
• 2 Ton to 2.5 Ton (4,000 lbs to 5,000 lbs): Standard passenger cars. Pro-LifT PL2920 lists 4,000 lbs capacity, while TONDA 2.5 Ton lists 5,000 lbs capacity with a low 3.35 inches profile.
• 3 Ton (6,000 Pound to 6,600 pounds): Midsize SUVs and trucks. LARBANKE lists a 3 Ton floor jack at 6,600 pounds capacity reaching 18.11 inches, while Powerbuilt lists an all-in-one unijack with 6000 Pound capacity and an 11 to 21 inches range.
• 4 Ton to 5-Ton (8,000 lb to 11,000 lbs): Heavy service work. BIG RED lists 8,000 lb capacity, YELLOW JACKET lists 8,800 lb capacity, and Maxority lists a 5-Ton jack at 11,000 lbs reaching 22 inches.

How to choose the right floor jack: the sizing checklist

Before purchasing, verify these key criteria:

1. Check vehicle weight ratings. Review the driver door pillar safety label for GAWR and GVWR, and check your owner manual for curb weight.
2. Verify minimum collapsed height. Ensure the jack saddle clears factory lift points on low-slung cars.
3. Check maximum lifting rise. Confirm the jack lifts high enough to clear tires and slide stands underneath.
4. Look for overload protection. Choose jacks with safety bypass valves. BIG RED notes compliance with ASME standards on its 4 Ton jack.
5. Select frame construction. Decide between lightweight aluminum for portability and heavy steel for shop durability.
6. Inspect wheels and casters. Durable casters aid positioning. TONDA lists two large steel wheels and two 360-degree swivel casters.
7. Check warranty coverage. Powerbuilt, BIG RED, Pro-LifT, and YELLOW JACKET list a 1 year warranty, while Maxority lists a 90 Days warranty.
8. Use rated support stands. Never rely on a hydraulic jack to hold a raised load; always support the chassis with rated best jack stands.

Steel vs aluminum floor jacks: weight and portability

Frame material impacts durability and mobility. In our guide on steel vs aluminum floor jacks, we examine the trade-offs.

Heavy steel service jacks offer long-term durability for home garages. However, full-size steel units carry substantial heft: BIG RED lists its 4 Ton steel jack at 100.8 pounds, Maxority lists its 5-Ton jack at 100 pounds, and YELLOW JACKET lists its 4 ton jack at 87 pounds. Even midsize units like the LARBANKE 3 Ton jack weigh 46 pounds. While compact steel trolley jacks like the Pro-LifT 2 Ton model weigh 30 pounds, larger steel jacks require real effort to move.

Aluminum and hybrid models reduce weight without sacrificing rated capacity. SATA lists a 1.5-Ton hybrid jack at 29.8 pounds, while BIG RED lists an aluminum and steel 1.5 ton model at 33.7 pounds (with a spec table weight of 31.5 pounds). For reliable budget choices, see our guide to the best floor jack under 200.

Lifting height: minimum clearance and maximum rise

Lifting geometry requires matching both minimum collapsed height and maximum extension to your vehicle suspension.

Minimum saddle height is crucial for low-slung cars. In our guide on what is a low profile floor jack, we discuss how low saddles slide under low rocker panels. TONDA lists a 3.35 inches minimum height, BIG RED lists 3.5 inches on its 1.5 ton jack, and SATA lists a 3-1/2 inches minimum saddle height.

Maximum lift height is equally important for vehicles with tall suspensions. As the jack rises, springs and dampers extend before the wheels leave the floor. While compact jacks lifting from 13-3/8 inches (listed by Pro-LifT) to 14.57 inches (listed by TONDA) suit standard cars, taller vehicles require longer stroke: LARBANKE lists an 18.11 inches maximum lift on its 3 Ton jack, YELLOW JACKET reaches 19-7/8 inches on its 4 ton model, BIG RED reaches 20 inches on its 4 Ton unit, and Powerbuilt lists 21 inches on its 3 Ton unijack.

For car-specific recommendations, see our guide to the best floor jack for cars.

Frequently Asked Questions

Can a 2-ton floor jack lift an SUV or truck?

A 2-ton floor jack (rated at 4,000 lbs) can lift a corner or axle on small crossovers, but is not ideal for larger SUVs or pickup trucks. Heavier vehicles require greater lifting capacity and higher maximum rise to clear long suspension travel. A 3-ton floor jack provides the reach and stability needed for trucks and SUVs.

Is a 3-ton floor jack better than a 2-ton floor jack?

For a multi-vehicle home garage, a 3-ton floor jack is more versatile. The Pro-LifT 2 Ton jack reaches 13-3/8 inches maximum height, whereas the LARBANKE 3 Ton floor jack reaches 18.11 inches and the Powerbuilt 3 Ton unijack reaches 21 inches. That extra stroke is necessary to lift taller vehicles.

How much clearance does a low-profile floor jack need?

Low-profile floor jacks feature collapsed saddle heights starting around 3.35 inches (listed by TONDA) and 3.5 inches (listed by BIG RED). Measure clearance between the ground and your vehicle jacking points to ensure the saddle rolls underneath smoothly.

Can I use a trolley jack instead of a service floor jack?

Compact trolley jacks are lightweight and portable, but full-size service floor jacks have wider wheels and longer frames for stability. Read our guide on a floor jack vs trolley jack to choose the right style.

Related: learn how to use a floor jack safely, browse the best jack stands, see the best floor jack for cars, and visit our jacks and stands hub.