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2 Post Car Lift in Davenport: Ceiling Clearance, Door Swing, and Two Configurations Compared

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An independent shop owner in Davenport who does frame-off restoration and sheet metal fabrication asked us to help him pick a 2 post car lift for a bay he had just cleared out. The building was an old brick two-story with a hand-cranked overhead door, roughly 11 feet 6 inches to the bottom of the joists at the lowest point, and a door that swung up into the bay rather than rolling straight overhead. Two constraints, both structural, both non-negotiable. We ended up quoting him two completely different configurations and letting the building decide. Here is that side-by-side comparison, because the same two constraints govern half the older shop bays along the Mississippi River corridor.

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Baseplate and clearfloor models from Rotary and Challenger, plus low-ceiling options for older buildings. Send us your lowest overhead measurement and door type and we will tell you honestly what fits.

Measure to the lowest obstruction, not the ceiling peak

The first thing we do on a site visit is walk the bay with a laser and find the lowest thing hanging over the drive path. Almost nobody’s ceiling is one flat plane. In the Davenport shop, the joists measured 11 feet 8 inches at the center but a sprinkler main dropped to 11 feet 2 inches about eight feet inside the door, and a run of conduit was lower still near the back wall. That conduit number was the real ceiling height, because a lifted car does not care what the joists measure if there is a pipe in the way.

Second measurement: door opening height and the arc of the door itself. A sectional overhead door that rolls flat against the ceiling eats three to six inches of headroom along the track, and an old one-piece door that swings up and in sweeps a much bigger arc. If you plan to leave a car in the air overnight — which restoration shops do constantly, because a project sits for weeks — the door has to close with the vehicle up. We had a hobbyist in New York with a 14-foot ceiling and a 20-foot-wide bay who had all the room in the world; the Davenport shop had neither. Get both numbers written down before you shop, and measure the door with a tape rather than trusting the plans. Old buildings settle and the original drawings lie.

Configuration one: overhead clearfloor with a low-profile beam

The first option we priced was a clearfloor 10,000 lb unit with the equalization cables and hose routed through the top beam. The appeal is obvious for a restoration shop: the floor between the columns is completely open, so you can roll an engine hoist, a welding cart, a rotisserie, or a body cart straight under the vehicle without lifting a wheel over anything. When you are grinding rust off a floor pan or dropping a subframe, obstruction-free floor space is worth real money.

The problem was vertical. Standard overhead models want roughly 12 feet of clear ceiling to reach full rise, and some tall configurations want more. With a hard limit of 11 feet 2 inches at the sprinkler main, a standard-height column would not fit. There are shortened-column and low-ceiling variants that bring overall height down to roughly 11 feet or a bit under, but they trade away maximum lifting height — you end up with a rise in the low-to-mid 60-inch range instead of 72-plus. For a tech who is 6 foot 2 and spends whole days under a car welding overhead, losing eight inches of rise is a genuine daily annoyance. It fit, technically. It just would not have been pleasant. That is exactly the honest conversation we would rather have before you buy a 2 post car lift than after.

Configuration two: baseplate, and what the floor plate costs you

The second option was a baseplate model, where the crossover hose and cables run through a steel plate bolted to the floor between the columns. Because there is no overhead structure, total height is just the column height — typically around nine and a half to ten and a half feet for a 10,000 lb unit. In an 11-foot-2 bay that leaves genuine breathing room, full rise stays available, and the overhead door can operate with a car in the air.

The trade-off is that plate. It sits an inch or two off the floor with a ramped profile, and everything you roll into the bay goes over it: floor jacks, transmission jacks, toolboxes, parts carts, the shop vac. For a high-volume brake bay that would be a nuisance. For a restoration shop where a car parks and stays for a month, it is almost irrelevant — you cross it once going in and once going out. We also like baseplate for the hydraulic routing, since the hose and cables sit at floor level where you can actually see and inspect them instead of squinting up at an overhead trough. One customer we quoted had a hard 139-inch maximum height and no path to an overhead unit at all; baseplate was not a compromise for him, it was simply the correct product. That is where the Davenport shop landed too.

Door swing, drive-through width, and getting the car in

Width matters as much as height in an old narrow bay, and it is easier to get wrong. You need enough space between the columns to drive a vehicle through — usually 96 to 106 inches on a standard model — plus room outside each column for the tech to walk, plus room for the arms to swing to their widest position without hitting a wall or a bench. In the Davenport bay the drive path was pinched on one side by a workbench that could not move because the electrical panel was behind it. We shifted the column centerline eighteen inches toward the open side and checked anchor edge distance to the expansion joint before committing.

Door swing is the sneaky one. On a one-piece tilt-up door, the bottom edge kicks inward and upward as it opens, sweeping through the front portion of the bay. If a column sits inside that arc, the door will strike it. We measure the sweep with the door half-open and mark it on the floor in chalk before anything gets anchored. Same principle applies to a sectional door: with the panels stacked overhead, the track hardware and any opener rail intrude on the ceiling plane. Plan the lift position so a car at full rise clears the opener rail, not just the drywall. Getting the geometry right on a 2 post car lift in a tight older building is mostly patient tape-measure work, and it is the part most online buyers skip.

Concrete in a hundred-year-old building

Riverfront and older industrial buildings in the Quad Cities have wildly inconsistent floors. We have cored slabs that turned out to be twelve inches of reinforced pour over engineered fill, and we have cored slabs in the same neighborhood that were three inches of skim over cinders. Manufacturers generally want a minimum of four inches of 3,000 PSI concrete for a 10,000 lb two-post, with specific anchor embedment and edge distance requirements. That is a floor, not a target — we like to see more when the columns are carrying a heavy truck.

If the pour is thin, the remedy is cutting and pouring new footings at each column location. It is a day of work plus cure time, and it typically adds a mid-three-figure to low-four-figure line to the project depending on footing size and access. Watch for two Iowa-specific complications: in-floor hydronic heat, which we will hit if we cut blind, and old floor drains or sewer runs that nobody documented. We scan before cutting. Also check for a previously patched pit or trench under your intended column position — old shops are full of filled-in grease pits, and anchoring into a patch is not anchoring into anything. If you are also weighing a slab-friendly alternative, our article on mid-rise scissor lifts versus two-post designs covers the lower-anchor-load options.

Capacity and arm geometry for restoration work

Restoration shops have an unusual load profile. A stripped 1967 project car might weigh 2,400 pounds with the drivetrain out, and the same shop might need to put a customer’s dually on the arms next week to weld a bed floor. The Davenport owner’s honest heaviest vehicle was under 6,000 pounds, which put a 9,000 or 10,000 lb rating squarely in range. We generally steer restoration shops to 10,000 lb because the extra margin costs relatively little and covers the occasional truck.

Arm geometry deserves more thought here than capacity does. Symmetric arms center the car between the posts and handle long wheelbases well, which suits vintage full-size sedans and pickups with generous frame rails. Asymmetric arms rotate the columns and pull the vehicle rearward so the door clears the post — nice on a modern car, less useful when you are lifting a body shell with no doors installed. For a shop that lifts frames and unibodies with pinch welds removed or rusted away, what actually matters is adapter versatility: telescoping arms, drop-end low-pad arms for ground-clearance cars, and a good stack of frame cradles and truck adapters. Double-telescoping screw pads and drop-end arms are the features to look for on the spec sheet. We keep adapters in stock for every brand we sell, and we will spec them alongside the 2 post car lift so you are not improvising with blocks of wood on day one. For a different take on cost and arm choice, see our Des Moines quick-lube cost breakdown.

About the Author

Josiah Ragsdale is the founder of Auto Lift Services. Based in Ames, Iowa, our team installs, services, and stocks parts for every major lift brand — from a home-garage 4-post through 30,000 lb commercial and 40K+ heavy-duty. Have a question or need a quote? Call 800-674-9302 or email [email protected].

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