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Two-post or four-post lift for a small shop?
How to choose between a two-post and a four-post lift for a one- to four-bay shop: vehicle mix, ceiling height, floor, storage and alignment work.
Most small shops end up with a mix, but the first lift you buy should match the work you actually do. Here is how we walk owners through the choice.
Two-post lifts
The general-purpose repair lift. Arms swing under the vehicle's lift points, wheels hang free, and the technician has open access to brakes, suspension, exhaust and the underside. Capacities run from 9,000 lb for cars and light trucks up to 18,000 lb for full-size trucks and vans. Symmetric arms are fine for most cars; versymmetric or asymmetric arms make door access easier and handle longer wheelbases. You need a solid, level concrete floor (usually a minimum of 4 inches, 3,000 psi or better) and about 12 feet of clear ceiling for a standard lift.
Four-post lifts
Drive-on runways. Best for oil changes, exhaust, inspections, alignment (with turn plates and rolling jacks) and storage. Wheels stay loaded, so brake and suspension work needs rolling jacks to lift the axle off the runway. They need more floor space and a longer bay, but they are forgiving on floor quality because the load is spread across four posts, and they are the right choice for alignment racks and for stacking a second vehicle in a tight shop.
Questions that decide it
- What do you lift most? Cars and light trucks for mechanical repair: two-post. Fleet trucks, alignment, quick-lube or storage: four-post.
- Ceiling height. Measure to the lowest obstruction (ducts, lights, door tracks), not the deck.
- Floor. We check slab thickness and condition before anchoring a two-post lift; if the slab is thin or cracked, a four-post or a new pad is the safer answer.
- Power and air. Most lifts need a dedicated 220V circuit; air-over-hydraulic locks need shop air at the column.
Budget
Installed two-post lifts typically run $4,000 to $12,000 depending on capacity and accessories; four-post and alignment lifts start around $10,000 installed. Installation includes anchoring, power and air connections where required, a full function test and a signed sign-off with photos. See pricing or the equipment we install.
Published 2026-08-22 by RBS Auto Work, an operating group of Radd Payment Solutions. More insights