Behind the Build: How the ShowShuttle™ Was Designed
We didn't set out to become a cart manufacturer.
ELS Nashville has been doing live production for over 12 years — lighting, audio, video, staging, and rigging for concerts, corporate events, and tours out of our shop in Fairview, Tennessee. We own hundreds of fixtures, cases of cable, racks of audio gear, and enough truss to rig a small arena. And for most of those 12 years, all of it moved in road cases.
The ShowShuttle™ started the way most of our fabrication projects start: with a problem on a real show that we got tired of solving the wrong way.
The Problem
If you've ever worked a load-in, you know the rhythm. Truck doors open. Cases come out. Cases get rolled to the stage. Cases get opened. Gear gets pulled out and set. Empty cases get stacked and stored somewhere — a hallway, a storage room, back on the truck. At the end of the night, the whole process reverses.
We did this hundreds of times. And every time, the same friction points came up.
The first was time. Unpacking and repacking road cases added significant time to every load-in and load-out. When you're working a festival with a 45-minute changeover, those minutes matter. When you're doing a one-off corporate event with a 6 AM load-in and an 8 AM doors, those minutes really matter.
The second was the physical toll. Our crew was lifting, stacking, and carrying heavy cases all day. Lighting road cases aren't light, and stacking them overhead into a truck at the end of a 14-hour day is where injuries happen. We were asking strong, experienced stagehands to do unnecessary manual labor when the actual technical work — the hanging, focusing, programming, and running of the show — is what they're good at and what we're paying them for.
The third was empty case storage. We'd show up to a venue with limited dock space and suddenly have 30 empty road cases that needed to go somewhere. Some venues have storage. Some don't. We've put cases in hallways, in coat closets, in the back of the truck with half the crew making extra trips. It's a logistical problem that has nothing to do with the show itself.
The First Attempt
The first version of what would become the ShowShuttle™ wasn't a product. It was a hack.
Our fabrication team — led by Ross, our Fabrication Lead — welded up a simple cart frame with pipe holders. The idea was basic: hang the fixtures on pipes, roll the cart off the truck, roll it to the stage position, and pull fixtures directly from the cart to the truss. No cases to open. No empties to store.
It worked. Sort of.
The fixtures rode on the cart fine in the warehouse. But after a few hundred miles on a truck, we started seeing problems. The vibration from the road was transferring directly through the steel frame into the pipe and into the fixtures. Moving lights aren't built to be shaken for hours. The optics, motors, and internal components can take a beating in a foam-lined road case, but direct contact with a rigid steel frame is a different story.
So we went back to the shop.
The Shock Mount Solution
The key insight was that the cart frame and the pipe module needed to be mechanically isolated from each other. The road vibration needed to travel through the casters, into the frame, and stop there — without transferring into the payload.
We designed a shock-mounting system that suspends the pipe module inside the cart frame. The pipes and whatever is hanging on them float independently from the steel structure. Road vibration gets absorbed by the shock mounts instead of transmitted to the gear.
This was the breakthrough. Once the shock mount worked, the cart could do something a road case couldn't: transport moving lights safely without custom foam inserts, without opening and closing lids, and without any case at all.
We tested it by loading a cart with some of our most expensive fixtures — Proteus Rayzor 760Zs, Artiste DaVincis — and sending it out on shows. After several hundred miles and dozens of load-in/load-out cycles, the fixtures showed no signs of transport damage. The shock mount was working.
Making It Modular
The shock-mounted pipe module solved the lighting transport problem. But a cart that only carries lighting fixtures is a single-purpose tool, and single-purpose tools don't earn their truck space.
We wanted a system where the same cart frame could go out configured differently depending on the show. Lighting on one date, audio on the next, video on the third. That meant the modules needed to be interchangeable — swappable without tools or modifications to the frame.
The module lineup we settled on covers the most common gear categories:
The Pipe Module is what started it all. Shock-mounted pipes — 2-inch square or round — for hanging lighting fixtures, LED panels, or anything else that clamps to pipe. This is the module that no other cart system offers with true shock isolation.
The Tray Module provides flat surfaces for smaller items — effects units, wireless receivers, small speakers, monitor controllers. Think of it as open shelving that's secured but quickly accessible.
The Shelf Module adds solid surfaces for stacking monitors, speakers, or heavier items that need a flat, stable platform during transport.
The Cable Bin is exactly what it sounds like — a bin for cable looms, power distribution, and accessories. It keeps cable organized and accessible without the tangle that happens when you throw 20 cables into a road case.
The QuikFlip module provides a folding work surface or divider. It's the utility player of the system — a surface when you need one, folded out of the way when you don't.
Any combination of these modules drops into the same frame. A lighting-heavy show might get three pipe modules and a cable bin. An audio-heavy show might get shelves and trays. The cart adapts to the show, not the other way around.
The Dimensions Decision
Cart dimensions might seem like a mundane detail, but it drove more of the design process than almost anything else. A touring cart has to fit three critical spaces, and if it fails any one of them, it doesn't work for the road.
The truck. Standard 53-foot trailers pack in rows. The industry standard for truck packing is based on 30-inch-wide modules — a "third-pack" means three items fit across the width of the trailer. Our cart is 30 inches wide by 48 inches deep — a clean third-pack footprint that truck-packs efficiently alongside road cases, carts, and set pieces from any vendor.
The man door. Not every venue has a loading dock. Some load-ins happen through a standard commercial door — typically 36 inches wide. Our cart at 30 inches wide rolls through with clearance to spare.
The freight elevator. Many venues require gear to move between floors. The ShowShuttle™ at 48 × 30 × 78 inches fits in standard freight elevators without disassembly.
Getting any one of these wrong would have made the cart a warehouse tool, not a touring tool. We needed all three.
Built to Order in Fairview
Every ShowShuttle™ is built at our fabrication shop in Fairview, Tennessee. We're not reselling someone else's product — the design, welding, assembly, and quality control happen in the same building where our production team preps shows.
Our fabrication team builds carts regularly. They build lighting transport carts, scenic transport carts, custom racks, and one-off solutions for problems that don't have off-the-shelf answers. The ShowShuttle™ is the most refined version of work they've been doing for years.
Current lead time is 8 to 10 weeks from order to delivery. Each cart is built to the customer's module configuration.
What We Learned
Building a product is different from building a one-off. A one-off cart for our own shop can have quirks — a weld that's functional but ugly, a dimension that's close enough. A product needs to be consistent, repeatable, and built to a standard that holds up across hundreds of units.
That discipline made us better fabricators. The documentation, the quality checkpoints, the standardized processes we developed for the ShowShuttle™ have raised the bar on everything our fab shop produces.
It also taught us something about our industry. There's an enormous appetite for solutions built by people who actually do the work. The ShowShuttle™ wasn't designed by an industrial design firm or a product development consultancy. It was designed by stagehands and fabricators who load trucks, push carts, and hang fixtures. That perspective shows up in every detail — from the shock mounts to the module latch mechanism to the caster selection.
The touring industry has relied on road cases for decades because road cases were the only option. They're not the only option anymore.
The ShowShuttle™ is available now, built to order at our Fairview, TN shop. View the product page → or email info@elsnashville.com to talk through your configuration.
