Built Different: How Superior Walls Stacked Up for a Commercial Car Wash

Most people know Superior Walls for residential basement foundations. We’ve built that reputation panel by panel across parts of Pennsylvania, Maryland, New York and Connecticut. So when a local general contractor called and asked whether we could build the shell for a new car wash, we saw a chance to show commercial builders and developers what our precast walls can really do.

The Challenge

A car wash is one of the more demanding buildings a contractor can take on. The structure must stand up to constant water, harsh cleaning chemicals, freeze-thaw cycles and heavy daily traffic. Inside, the tunnel houses conveyors, brushes, dryers and pumps, all of which require tight dimensional tolerances. Below grade, equipment pits and trenches have to line up exactly with the machinery that sits on top of them.

The original plan called for split-face block, a proven material but a slow one. Every step depends on the weather, and the schedule stretches with every rain day. For the owner, time mattered. Every week the wash sat unfinished was a week it wasn’t generating revenue.

The Solution: Two Layers of 10′ Xi Walls

We answered the contractor’s question with a design that stacks our 10′ Xi precast panels two levels high to form the building shell.

On our first mobilization, we set the tunnel walls, the equipment pit walls and all slab-on-grade walls. We buried the first tier of 10′ panels 4′ below grade, creating a solid base for the entire structure. The other trades then moved in. MEP contractors roughed in their underground systems, and the flatwork crew poured the slabs. On our second mobilization, we returned and set a second tier of 10′ Xi panels on top to complete the upper tunnel walls.

The result is a building shell that combines the strength of high-strength, steel-reinforced precast concrete with built-in insulation. You can see the panels in the completed building. They form the clean concrete base beneath the blue metal facade.

Speed That Changes the Schedule

Speed drove this decision, and our crew delivered:

  • First mobilization (tunnel walls, pit walls and slab-on-grade walls): installed in 3 to 4 days
  • Second mobilization (upper tunnel walls): installed in 3 days

That’s roughly one week of on-site wall installation for the entire vertical structure. Because we build our panels in a climate-controlled plant while the site work happens, the walls arrive ready to set. Split-face block, by contrast, would have kept masons on site for a considerably longer stretch and left the schedule exposed to every storm that rolled through.

For the general contractor, that meant a faster path to follow-on trades. For the developer, it meant a faster path to opening day and earlier revenue.

Engineering Around the Equipment

Speed means nothing if the walls don’t fit the building’s purpose. Car wash equipment leaves little room for error, so our team worked closely with the project’s architect, engineers and general contractor from the start. Together, we coordinated panel dimensions, openings and pit locations around the conveyor, tunnel equipment and mechanical systems before a single panel went into production.

Factory production made that precision possible. We cast every panel in controlled conditions to exact dimensions, so the walls arrived on site matching the plans. That precision gave the equipment installers the tight tolerances they needed and helped the project avoid costly field fixes.

More Than Basements

This project shows what happens when a contractor, a design team and a precast manufacturer look at a building differently. The same engineering, quality control and installation speed that make Superior Walls the go-to foundation for home builders can solve problems on commercial projects too: car washes, retail buildings and more.

If you’re a general contractor or developer facing a tight schedule, a demanding building type or a budget that needs to work harder, let’s talk. Our team will look at your project and show you where precast can save you time and money.