A 4 post lift is the drive-on lift shape – four columns at the corners, two runways down the middle, no swing arms. Buyers land on this page for one of three completely different reasons: home garage car storage (park a car on top, park another underneath), commercial shop service (long chassis vans, trucks, and fleet vehicles that need drive-on access), or alignment work (a 4 post lift with turnplates and slip plates is the classic alignment rack). This guide walks through what to buy for each use and links you to the models we actually stock and install.
Rotary, Forward, and Challenger. Home storage 7K-9K and commercial 12K-40K+.
The three buyer types
1. Home garage storage
If you want a 4 post lift primarily to double your garage’s floor space by parking one car on top of another, you are in the biggest and most common buyer segment. A home-storage 4 post lift is typically 7,000 to 9,000 pound capacity, uses a cable-driven design (safer and simpler for the driveway lifter), has locking positions every 3 to 4 inches, and often includes drive-off ramps that can double as wheel chocks. The key numbers to size on: your ceiling height (you need enough height to raise the lift high enough to park a car underneath), your vehicle weight (add roughly 20 percent buffer for peace of mind), your vehicle wheelbase (some lifts have runway lengths that are marginal for pickups and long SUVs), and your garage floor thickness.
Popular home-storage models we install: Rotary CL4P7 (7,000 lb, entry-level home garage), Rotary CL4P9 (9,000 lb), Challenger EFP8 (8,000 lb), Challenger EFP9 (9,000 lb). These are the four we quote most for home use. All fit in a standard-height garage (ceiling ~10 feet) but if you have a taller ceiling you get more clearance underneath.
2. Commercial shop service
If you run a service shop or a fleet operation and need a 4 post lift for actual repair work – long chassis vans, cargo trucks, service vehicles too long for a 2-post – you want a commercial-grade lift. Commercial 4 post lifts run 12,000 to 40,000 pound capacity, have longer runways (18 to 26 feet common), and often come with a rolling jack accessory that lets the wheels come off the runway so tire, brake, and suspension work can happen. Rolling jacks are what make a 4 post lift useful for actual mechanical service rather than just storage.
Popular commercial 4 post lifts we install: Rotary SM122 (12,000 lb), Rotary SM140 (14,000 lb), Rotary SM301 (30,000 lb heavy-duty), Challenger 44000-series (40,000 lb+ heavy-duty), Forward CL4P14 (14,000 lb). Any of these lifts scales up or down in options like extended runways, air-line accessories, and rolling jacks. Ask us to price the base lift plus the accessories you actually need – do not pay for what you will not use.
3. Alignment work
An alignment-rack version of a 4 post lift is what most shops actually mean when they say alignment rack. It is a standard 4 post lift with the following add-ons: turnplates at the front (so the wheels can steer while measuring toe and caster), rear slip plates (so the rear can slide while the front adjusts), a level-tolerant runway that stays truly flat under load, and often a pit or floor space cut out under the runways for the alignment machine’s cameras or heads. We sell alignment-capable 4 post lifts across capacities – see the alignment rack page for the specific configurations.
4 post lift versus 2 post lift – which do you actually need?
A quick way to think about it: 2-post lifts are for wrenching. You lift by the frame, the wheels drop free, you can work on brakes, suspension, wheels, and the whole underside. 4 post lifts are for driving on. You keep the wheels on the runways, and you can do fluid changes, exhaust work, and pull-through inspections easily – but full wheel-off work requires the rolling jack accessory. Home garage storage is almost always a 4 post lift (you cannot store a car overnight on hydraulic 2-post arms – safety concern and the arms drift over time). Alignment work is almost always a 4 post lift (turnplates and slip plates are the whole point). General service can go either way, and most busy shops end up with a mix.
Ceiling height, floor, and install considerations
Before ordering any 4 post lift, measure three things carefully. First: your ceiling height, including any garage door tracks, ductwork, lights, and beams that would interfere at full-lift. A home-storage 4 post lift typically wants at least a 9 to 10 foot ceiling to be useful; more is better. Second: your floor slab. Home garage slabs are usually 4 inches of concrete, which is the minimum most 4 post lifts specify. Commercial shop slabs are usually 6 inches. Some heavy-duty lifts require 8 inches or a poured pad below the columns. If your floor is a question mark, we can inspect before ordering. Third: garage door position. If the door opens across where you want the lift, you need to plan clearance so the door does not hit a stored vehicle.
On the install side, home garage 4 post lifts are usually cable-driven and can be assembled by a competent DIY installer following the manual. That said, we install professionally in central Iowa and can install remotely by drop-shipping the lift and coordinating a local installer for out-of-region buyers. Commercial 4 post lifts (12K+) we strongly recommend having installed professionally – the columns need to be anchored, plumbed, and torqued to spec, and the safety lock system needs to be tested under load before the lift goes into service.
ALI certification and safety
Look for the ALI Gold Label on any 4 post lift you buy for shop use. ALI (Automotive Lift Institute) is the third-party safety certifier for vehicle lifts. Home-garage lifts often are not ALI certified because the ALI test focuses on shop service – but that does not automatically mean home lifts are unsafe, it means they were not enrolled in the certification program. If safety is a concern (and it should be), stick with lifts from established manufacturers and follow the maintenance schedule in the manual.
Turnaround time from order to install
Common home-storage 4 post lift models we stock ship within a few days of order clearing. Commercial capacities we usually pull from the manufacturer, which is one to two weeks in most cases. Install we schedule around the ship date so the lift shows up and gets installed in one window. For a typical Rotary CL4P9 home install: order today, delivered and installed within about three to four weeks depending on our schedule.
Financing on a 4 post lift purchase
We offer 0% APR financing through First Business Bank on lift purchases, with a 90-day payment defer option. The lead form is on the main store and we can walk you through it on the phone if you want to fold the numbers into a purchase quote alongside cash pricing.
Ready to pick your 4 post lift? Tell us your ceiling height, capacity need, and what you plan to lift, and we will point you at the right model.
Frequently asked questions
What is the difference between a 4 post lift and a 2 post lift?
A 4 post lift has four columns and two runways that you drive the car onto – great for storage, alignment, and long-chassis vehicles. A 2 post lift has two columns and swing arms that lift by the frame – better for general repair work where you need the wheels to drop free.
How much ceiling do I need for a 4 post lift?
Most home-storage 4 post lifts need 9 to 10 feet of ceiling clearance. Commercial 4 post lifts need 12+ feet. Measure to your lowest obstruction like garage door tracks, ductwork, and lighting.
Can you park a car on a 4 post lift for months at a time?
Yes. A 4 post lift is safe for extended storage because the vehicle sits on runways and the platform locks mechanically at each stop height. This is different from a 2 post lift where the arms should not hold a vehicle for extended periods.
What slab do I need for a 4 post lift?
Home-storage 4 post lifts want 4 inches of concrete at 3000 PSI minimum. Commercial 4 posts want 6 inches. Heavy-duty (over 15,000 lb) wants 6 to 8 inches or a poured pad.
Can a 4 post lift do wheel-off work?
Only with a rolling jack accessory that lifts the wheels off the runway. Without a jack, the wheels stay on the runway. If you need wheel-off service capability, add a rolling jack to the order.
Our Clients Include: