Automotive two post lifts turn a mid-size pole building into a real restoration shop faster than any other single purchase. A shop in West Des Moines called us this spring — 30-by-40 pole building, 12-foot sidewalls, concrete floor, no in-floor heat, wants to do metal work and full frame-off restoration on 1970s muscle. That is a classic Iowa restoration setup, and the ceiling-versus-door question is the one that decides between an overhead 2-post and a floor-plate 2-post. We install into these buildings every month; here is how we walk through the choice, side by side, so the wrong lift never gets shipped to the wrong bay. Call us at 800-674-9302 to talk through your specific building.
Overhead and floor-plate 2-posts sized for pole barns and low ceilings.
What 12-foot sidewalls actually let you install
The lift height number that matters is not sidewall — it is clear ceiling height under the lowest obstruction. A 30-by-40 pole barn with 12-foot sidewalls typically has trusses that drop the clear ceiling to about 10-foot-6 at the center, sometimes less if there is a purlin run or a light fixture in the way. An overhead automotive two post lift wants at least 11-foot-6 of clear rise between the top of the shackle and the underside of the cross-tube. If your West Des Moines pole barn measures 10-foot-6 clear, an overhead 2-post will hit the truss on the way up. A floor-plate 2-post moves the cross-tube to the floor, which frees the ceiling and lets you lift full ride height in the same building. We measure clear ceiling with a laser and we always ask for a photo from the intended lift location before quoting.
Automotive two post lifts — overhead vs floor-plate side by side
An overhead 2-post has the equalizer bar and hoses running through a cross-tube at the top of the columns. Pros: clean floor, easier rolling jack access, cleaner sightlines under the car. Cons: needs the ceiling. A floor-plate 2-post runs the equalizer through a floor tray between the columns. Pros: fits under low ceilings. Cons: the tray is one more thing to trip on and one more thing to catch a low front air dam on. For West Des Moines restoration work, the vehicles are typically 1960s-70s cars with 5-inch ground clearance minimum — they clear a floor-plate tray fine. Automotive two post lifts in floor-plate configuration also install a few hundred dollars cheaper on average because the cross-tube fabrication is simpler. For a pole building that measures 10-foot-6 clear, that is usually the smarter buy on both counts.
Door swing and header clearance in a pole barn
Restoration cars are longer than modern passenger vehicles. A 1969 Chevelle is 197 inches long; a 1972 Cadillac is 227. You need door width and swing clearance to get them in and out with body panels removed. A 10-foot overhead door on a 30-by-40 pole barn is usually fine on width but tight on height for a lifted or hood-off car. If you plan to leave a body-in-white on the lift and roll a rotisserie in beside it, plan your bay layout on paper first. We have seen shops install two lifts side by side and lose 4 feet of usable floor to arm swing. In a 30-foot-wide building, that is a real cost. Space your bays for the widest arms fully extended, not for the lifts sitting empty against the wall between projects.
Reach envelope for restoration work
Restoration lifts spend a lot of time at partial height. You raise the car to shoulder height for underbody metal work, drop it to hip height for door skin work, raise it again to lay under it for exhaust routing. That lift-and-lower cycle is where automotive two post lifts earn their money over a scissor lift. Three-stage arms with wide swing let you position a partially disassembled body on the pads even when the frame is stripped. Pad stackers matter — restoration cars sometimes ride on subframe stubs with no rocker weld to grab, and you build up to the frame with stackers. Every restoration shop we serve in central Iowa ends up with a pad kit within six months, usually because the first customer car that came in did not fit the standard pads and cost half a day of workarounds. Order the pad kit with the lift and skip the pain.
Side-by-side — clearance, cost, and service ceiling
Overhead 2-post: needs about 11-foot-6 clear ceiling, prices a few hundred dollars higher than the equivalent floor-plate model, gives a clean floor with no tray. Floor-plate 2-post: fits under 10-foot-6 clear, cheaper, has a floor tray that restoration cars clear fine but that a lowered street car will scrape. Both accept the same arm sets and both come with ALI Gold certification from Rotary and Challenger. Service ceiling — the height a lifted vehicle actually reaches — is about the same on both because the arms and carriage travel are identical; the cross-tube is above the vehicle at full lift on the overhead and below the driveway on the floor-plate. For West Des Moines pole barns, we ship more floor-plate than overhead because the ceilings run tight and the customers do not want to eat into the truss height.
What West Des Moines shops usually pick
The most common install we do into a 30-by-40 pole building in the West Des Moines area is a 10K floor-plate 2-post from Rotary or Challenger with three-stage asymmetric arms, single-phase 220V, and a pad stacker kit. Ten thousand pounds is more capacity than a restoration car needs on paper, but the extra headroom lets you park a modern truck on the same lift when the frame-off work is done and you want to do a brake job on your daily driver. Restoration shops evolve — they always add general service after year two — and we would rather sell you the versatile lift now than the too-small lift now and the right lift in two years. That is what we tell every restoration owner in central Iowa who calls us about automotive two post lifts, and it is why our repeat customers come back for the second bay instead of shopping around.
Our install pattern for pole-barn conversions
We survey the site, we core the concrete if the shop is unsure of thickness, we walk the ceiling with a laser, and we set anchors to manufacturer edge distance. We handle the electrical hookup if you want it or we hand it off to your electrician with a wire diagram. Install day is usually 4 to 6 hours for a floor-plate 2-post in a prepped pole barn. We commission the lift, we cycle it under a test load, and we walk your team through daily and monthly safety checks. If you want us to come look at your specific building before you order, call 800-674-9302 or email founder@autoliftserv.com. Related reading: pole barn 2-post installations and floor-plate vs overhead lift comparison.
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