A 4-post storage lift can double the usable space in a body shop bay overnight, but the install only goes smoothly if the site survey happens before the lift shows up on a truck, not after. We’ve walked into more than one Urbandale body shop where the foreman had already picked a spot, measured with a tape from memory, and assumed the concrete would hold — only to find out during our survey that the slab needed review or the ceiling was six inches shorter than remembered. This guide walks through exactly what we check before installing a 4-post storage lift, so you know what to have ready before you call us.
Browse Rotary and BendPak 4-post storage lift models sized for body shops, from wheel bearing bays to overnight vehicle storage.
Why Body Shops Reach for a 4-Post Storage Lift
Body shop foremen usually call us for one of two reasons: they need more storage capacity for vehicles waiting on parts or insurance approval, or they need a stable platform for wheel bearing service and other underbody work that doesn’t require the full flexibility of a 2-post lift. A 4-post storage lift solves both at once. The wide runway platform holds the vehicle securely for weeks if needed, and because the vehicle’s own wheels sit on the runway rather than hanging from arms, it’s a forgiving setup for techs who are in and out of the vehicle constantly during wheel bearing service.
The tradeoff body shops need to understand going in is undercarriage access. A 4-post storage lift doesn’t give you the same open access to the wheel wells and suspension components that a 2-post lift does unless you add a rolling jack or jack beam between the runways. For wheel bearing service specifically, that add-on is close to mandatory — you need to get the wheel off the ground and the hub free to swing, which the runway alone won’t do. We spec that accessory into almost every body shop quote we write for this reason.
Step One: Measure Your Actual Ceiling Height
The single most common mistake we see before an install is measuring ceiling height to the roof deck instead of to the lowest hanging obstruction. Sprinkler heads, HVAC ductwork, light fixtures, and door tracks all eat into your real clearance, and a 4-post storage lift with a vehicle raised to full height needs several feet more than the lift’s own deck height suggests. We ask every Urbandale shop for a measurement to the lowest point in the bay, not the ceiling itself, and we double-check it during the site survey regardless.
If your bay has 11 to 12 feet of clearance, you’re generally fine for a mid-height 4-post configuration, but you may not get full-height lift travel with a taller vehicle on the deck. Shops with taller bays — 14 feet and up — have more flexibility on model choice and can run taller trucks and vans to full height without issue. Either way, this measurement needs to happen before ordering, because swapping a lift model after delivery costs real time and money.
Step Two: Check Your Concrete Before We Do
Concrete condition is the second thing we verify, and it’s the one buyers most often assume is fine without checking. A 4-post storage lift distributes weight differently than a 2-post lift — more evenly across four contact points rather than concentrated at two — which is one reason 4-post units are often the better choice for shops with thinner or older slabs. Even so, we still want to know the slab thickness, whether it’s reinforced, and whether there’s any cracking or spalling near the intended install location.
Standard residential-grade concrete around 4 inches is generally workable for a mid-weight 4-post storage lift when it’s in good condition, but commercial-grade body shop floors with 6 inches of reinforced concrete give you more headroom on capacity and long-term durability. If your shop has infloor heat, tell us before the survey — anchoring around infloor heat lines requires extra care to avoid puncturing a line during installation, and we plan the anchor pattern around it rather than guessing.
Step Three: Confirm Your Weight Rating Needs
Body shops handle a wide range of vehicles, and it’s easy to underestimate weight when you’re thinking about typical sedans instead of the occasional heavy-duty truck that rolls through for collision work. We ask every shop what the heaviest vehicle they realistically service is, then size the 4-post storage lift a step above that number. A shop that mostly sees passenger cars but occasionally takes in a 3/4-ton truck should buy for the truck, not the average.
Most body shop installs we do land in the 9,000 to 10,000 lb range, which comfortably covers full-size trucks and SUVs with a margin for tools, aftermarket parts, and fluids left in the vehicle. If your shop does any heavier fleet or diesel work, we’ll size up from there — a loaded diesel pickup can weigh considerably more than the base curb weight most people quote off the top of their head.
Step Four: Plan Bay Width and Runway Placement
A 4-post storage lift needs more total bay width than most foremen initially plan for once you account for the columns, the runway width, and clearance on both sides for a technician to walk around comfortably during wheel bearing service or other underbody work. We recommend a minimum working width that leaves at least a couple feet of clearance on each side of the platform, more if you’re running a jack beam accessory that needs room to roll in and out.
Runway placement within the bay also affects how you use adjacent space. Positioning the lift too close to a bay door can block full-height raises, and positioning it too close to a neighboring lift or workbench can make loading and unloading awkward for less experienced techs. We map this out on paper with the shop before the install date, using actual bay dimensions rather than eyeballing it, which avoids the redo conversations that happen when a lift ends up two feet too close to a support column.
Step Five: Decide on Delivery, Install, and Timing
Once the survey confirms ceiling height, concrete, weight rating, and bay layout, the last piece is scheduling. We handle delivery and full installation for body shops across the Urbandale area and the greater Des Moines metro, and most 4-post storage lift installs take a single day once the site is confirmed ready. Shops that are still finishing floor work, running electrical, or waiting on a bay door install should time the lift delivery after those trades are done — a finished bay makes for a faster, cleaner install.
We also stock the accessories that come up most in body shop quotes — jack beams, rolling bridge jacks, and casters for shops that want mobility before committing to a permanent spot. If you’re comparing options before committing to a 4-post configuration, our related guides on 2-post lift installation requirements and mobile column lift use cases cover the alternatives worth ruling out first.
What to Have Ready Before You Call
To get an accurate quote on the first call, have four numbers ready: your ceiling height to the lowest obstruction, your concrete thickness and condition, the heaviest vehicle weight you realistically service, and your available bay width. Foremen who come to us with these four answers get a quote that holds up through installation day, rather than one that needs revising once our crew arrives and measures the space themselves.
We’ve installed the lift units in body shops, dealerships, and independent repair shops throughout the Des Moines metro, and we’re happy to walk through the site survey over the phone before scheduling an in-person visit if that’s easier for your team’s schedule. Either way, the goal is the same — a lift that’s rated right, anchored right, and ready for wheel bearing service and storage from day one.
Our Clients Include: