A restoration shop owner outside Cedar Rapids called us last spring with a bare 40-by-60 shell, a dirt-floor half, and a 1967 fastback sitting on jack stands under a tarp. He wanted a 2 post car lift in the middle bay so he could get under a body shell with a welder instead of crawling around on a creeper. Reasonable ask — but he’d already poured half the slab and run the electrical, and both decisions had quietly boxed him out of the configuration he actually wanted. We spend a lot of time on calls like this one. Sequencing a garage build-out around the lift instead of the other way around costs nothing extra if you do it in the right order, and thousands if you don’t.
Rotary, Challenger, BendPak and Atlas two-post lifts in stock. Tell us your ceiling height, slab thickness and heaviest vehicle and we’ll tell you exactly which model fits before you spend a dollar on concrete.
Why Restoration Work Changes the Lift Conversation
A general repair shop uses a lift for maybe twenty minutes at a stretch. Wheels off, brakes done, wheels on, next car. Restoration is the opposite: a body shell can sit up in the air for three weeks while somebody cuts out rusted floor pans, fabricates patches, and grinds welds overhead. That changes what matters. Duty cycle almost stops mattering; sustained load-holding, arm reach at odd body positions, and unobstructed access underneath become everything.
It also changes how you think about the arms. On a stripped shell there may not be a factory pinch weld left to grab, or the rockers may be exactly what you’re replacing. That pushes restoration guys toward frame-contact adapters, tall stacking blocks, and sometimes a set of jack stands staged under the frame rails as a secondary support once the shell is up and locked. We’ve seen shops rig up cross-members between the arms so a unibody with no floor left can still be supported at four solid points. None of that is exotic, but it means you want a lift with generous arm travel and readily available adapter kits, not the cheapest thing on a pallet.
The other restoration-specific factor is grinding and welding debris. Sparks and slag land on hoses, cables, and hydraulic fittings. Route lines away from where you’ll be working overhead, keep a welding blanket handy for the power unit, and budget for cable inspections more often than a normal shop would.
Configuration A: Baseplate Two-Post Under a Low Ceiling
The first configuration we put in front of him was a baseplate design — the hydraulic and equalizing lines run through a channel across the floor between the columns instead of over an overhead beam. Baseplate wins on exactly one thing, and it’s a big one: vertical clearance. If your ceiling is 11 or 12 feet, or you’ve got trusses, a garage door track, or a loft eating into one side, a baseplate model lets you use every inch you have. We’ve installed these in buildings where an overhead unit physically would not have cleared the door opening.
The trade-off is that floor channel. On restoration work you roll transmission jacks, engine stands, welding carts, and body dollies across the bay constantly, and that raised crossover is a nuisance forever. Some shops chase it out of the slab during the pour, which solves it completely — but that only works if you know the lift model and its exact footprint before the concrete truck shows up. That’s the sequencing point. Choose the lift, get the drawing, then pour. In the Cedar Rapids case the slab was already down, so a recessed channel meant saw-cutting.
Baseplate units also tend to be a bit more affordable in the entry tiers, and for a hobby-grade or light-commercial 2 post car lift at 9,000 to 10,000 lb that matters. If budget is the binding constraint and your ceiling is short, this is the honest answer.
Configuration B: Clearfloor Two-Post With Overhead Beam
The second option was a clearfloor design with an overhead beam carrying the lines and the shutoff bar. Floor is completely open between the columns — nothing to trip on, nothing to roll a floor jack over, nothing to catch a body dolly wheel. For a shop where a car sits up for weeks and people are constantly moving equipment underneath, that open floor is worth real money.
The cost is height. You need roughly 12 feet of clear ceiling for a standard 10,000 lb clearfloor unit, and more if you want full rise on a tall vehicle. The overhead bar also sets a hard limit on how tall a vehicle you can raise, which matters if a customer ever brings in a lifted truck or a van. One shop we work with in eastern Iowa put a clearfloor two-post in the bay with the tallest ceiling and kept a lower-clearance bay for anything with a roof rack.
For pure restoration, we usually recommend clearfloor if the building allows it. The reasons stack up: unobstructed floor for fabrication, easier to sweep and manage metal shavings, no channel to fill with grinding dust, and cleaner routing for the hoses relative to where the sparks fly. A well-installed clearfloor 2 post car lift also just feels better to work around, and that matters over a ten-hour day with a torch in your hand.
Concrete: The Decision You Can’t Undo
Every two-post lift specification includes a minimum slab thickness and concrete strength, and for most 10,000 lb units that’s roughly four inches of 3,000 PSI at minimum — with more being better, and manufacturers frequently calling for six inches on higher-capacity models. We get calls constantly from people who say the slab is “about five inches, maybe less.” Maybe less is the phrase that should stop you. We’ve cored slabs that were advertised as four inches and came in at two and a half over gravel fill.
If you’re pouring new, this is free performance. Spec a thicker pad in the lift footprint, get the rebar right, and let it cure the full 28 days before anybody drills an anchor. If you’re working with existing concrete and it doesn’t measure up, the fix is a cut-out and a properly sized structural pad per the manufacturer’s engineering drawing — not longer anchors, not epoxy, not hope. Anchors that pull out of thin concrete under load are the single most dangerous failure mode we see in the field.
Levelness matters too. A slab with a drainage slope across the lift footprint means shim plates under one column, and there’s a limit to how much shimming any manufacturer allows. Check it with a laser before you commit the layout, not after the columns are standing.
Sequencing the Build-Out: Order of Operations
Here’s the order we recommend, and it’s the exact opposite of how most people do it. First, pick the lift model. Second, get the manufacturer’s installation drawing with the column footprint, anchor pattern, minimum bay width, and required ceiling height. Third, lay out the building around that drawing — door openings, loft framing, air lines, lighting. Fourth, pour concrete to spec. Fifth, run power to the column that will host the power unit. Sixth, install.
Most people run it backwards: build the shop, pour the floor, hang the lights, run the air, and then start shopping for a 2 post car lift. That’s when you find out the light fixture is directly over where the overhead beam goes, or the air drop is exactly where the driver-side column lands, or the loft you framed on the left has an 11-foot underside. All fixable, all expensive.
Power is worth a specific note. Most residential and light commercial two-post units run on 208-230V single phase, and you want a dedicated circuit sized to the motor with a disconnect within reach. Three-phase is common in commercial shops and typically costs less to run long term, but only if you already have it. Get an electrician the motor nameplate data before they pull wire, and put the receptacle on the column side specified by the manufacturer so the factory hose lengths reach without splicing.
Capacity, Arm Style, and Sizing for What You Actually Lift
The restoration shop in Cedar Rapids works on 1960s and 70s domestic iron. Heaviest thing he touches is around 4,500 lb wet. A 10,000 lb unit is plenty and honestly generous. But we always ask the second question: what’s the heaviest vehicle you might touch in five years? If the answer includes a three-quarter-ton pickup or a customer’s dually, that conversation shifts to 12,000 or 15,000 lb, and it’s much cheaper to buy capacity once than to buy twice.
Arm style is the other sizing decision. Symmetric two-post lifts place the columns directly across from each other and center the vehicle between them, which suits older cars with a fairly centered wheelbase and works beautifully for restoration work where you want maximum arm reach at the frame rails. Asymmetric designs rotate the columns and use unequal arms so the vehicle sits back and you can open the doors — a big deal in a general repair shop, less critical when the doors are off the car and hanging on a rack anyway. Some models expand to accommodate both configurations.
If you’re not sure, tell us the three heaviest vehicles you expect and your bay dimensions and we’ll match a model. Our team also handles two-post lift installation across Iowa and can look at your slab before you commit.
What the Cedar Rapids Shop Ended Up Doing
He went clearfloor. The building had 13 feet of clear height in two bays and only the loft side was compromised, so we set the lift in the center bay and left the low side for the media blast cabinet and the parts washer. Because the slab was already poured, we cored three test points, found consistent five-inch concrete over compacted base, and confirmed the anchor spec was satisfied without a cut-out. That saved him a chunk of money he’d already mentally spent.
The compromises were real. His original plan had the air compressor drop right where the passenger column landed, so we moved the drop eight feet and added a reel. One overhead light had to come down and get re-hung outboard of the beam. And he waited three weeks on freight for the model that fit, rather than taking a baseplate unit that was sitting on the floor, because the open bay mattered more than the calendar.
Two years later he’s still using it the same way — a shell up in the air for a month at a time, welding underneath, arms on frame adapters. That’s what the right configuration buys you. If you’re planning a build and want somebody to look at the drawings before the concrete truck is scheduled, call us at 800-674-9302. We’d rather have that conversation now than after the pour. You can also read our breakdown of two-post versus four-post lifts if you’re still deciding on the layout.
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