A flexible base that holds your coffee, water, or can steady no matter what the rig is doing — braking into a rest stop, rocking the dinette at game night, or sitting a degree off level at a site nobody bothered to block up. It goes wherever you set it down, no drilling required.
One flexible base. Empty first, then holding a cup, a can, and a 40 oz tumbler — the same base that rides the dash, the dinette, and the picnic table.
The situation
Forty feet of house, and nowhere built to hold a drink.
A motorhome is forty feet of house that has to survive an interstate — and somewhere in the engineering, nobody solved for where the coffee goes.
The cockpit — no shelf at all.
Owners of coaches large and small post the same forum complaint: the cab shipped with no console, no holder, nothing but a sloped dash and, on many rigs, the engine doghouse hump between the seats. Where a shallow ring does exist, the standing report is that it lets cups and bottles fall out under braking.
The pedestal dinette table.
One laminate top around 38 to 44 inches long, carried on a single leg whose socket loosens with every mile of road vibration. Multiple owner forums report the same result after a season of travel: two to three inches of side-to-side play, which turns a full cup into something the whole table argues about.
The sofa with nothing beside it.
Floor plans claim every square foot, so the jackknife sofa in the slide-out gets a thin or absent armrest and no end table. The nearest flat surface is a walk across the coach, so the drink ends up on the cushion or the floor.
The campsite outside the door.
Gravel pads, sloped grass, dirt — none of it flat, and none of it forgiving. The camp chair's floppy mesh pocket sags and can't hold a modern insulated tumbler, so the can goes straight into the grass and finds the lean the moment you lean toward the grill.
Every counter, a degree or two off.
Sites are rarely dead level, and rigs get leveled close enough for the refrigerator, not flat. That leftover tilt works quietly on every bottle left standing on a bedroom ledge or a kitchen counter overnight.
It's not a crisis, any of it — just the low hum of a house that never quite stops moving, and the quiet math you re-run at every single stop.
You know the moment
Every RVer has lived one of these.
Travel-day morning, pulling out of the site
Everything else got stowed before the wheels turned, but the coffee is still in your hand — so it rides the dash or the doghouse, and the first on-ramp or hard brake starts it walking toward the edge.
Arrival happy hour
Leveled, slide out, chairs unfolded on the gravel. The can goes into the chair's mesh pocket or straight into the grass — and tips the second you lean over to check the grill.
Game night at the dinette
Four people around a table with play in the leg socket. Someone slides into the booth, the whole top rocks, and every hand goes to its own cup on reflex.
An off-level overnight, no blocks out
A quick stop where nobody breaks out the leveling blocks. The rig sits a degree or two off, every counter has a quiet downhill, and a round-bottomed bottle finds it sometime after midnight.
Morning coffee in the swiveled captain's chairs
Chairs turned to face the living area, sun through the windshield, and nothing to set the cup on but the sloped dash it's already begun to creep across.
What you get
Three reasons it stays out.
01
Rides out the whole drive
Braking, cornering, the buzz of the highway under a moving coach — the wide flexible base spreads across the dash or the table instead of standing on a point, and the fins hold the drink so it isn't free to slide.
02
Takes what actually rides with you
The 40 oz tumbler, the insulated travel cup, the can in a koozie, the wide-based wine cup that replaced the wine glass — the base grips them all from the bottom inch, on the dash, at the dinette, or in your lap at the campsite.
03
Asks nothing of the rig
No drilling into the dash, no screws into the wall by the sofa, no hole saw through the dinette laminate. It sits on top of whatever surface is in front of you and stows flat in a basement bay when you're between stops.
The fit test
The fit test rides along before the cup ever does.
your cup's base lands in here
A square sticky note: 3 inches, exactly.
01
Grab a sticky note — any pad works.
The everyday square is exactly 3 inches on a side. That's a fact about sticky notes, and it happens to land right at the widest base this holds.
02
Stand the cup on it, right there at the dinette.
Look at the bottom, not the rim — tapered tumblers and flared lids lie about the real width. The base is the only measurement that decides anything.
03
Read the note.
Base sits inside the square? It fits. Hangs over the edge? Too wide. A tiny circle lost in the middle — under about 2 inches? Too narrow.
No tape measure at the dealer lot, no guessing before a trip. One sticky note from the junk drawer, and the cup you actually bring on the road.
Will it fit my cup
Measure the bottom, not the top.
One line covers everything below: a container base about 2 to 3 inches across settles in and holds. The verdicts follow from it.
40 oz Stanley-style Quencher fits
Insulated travel cup fits
Standard 12 oz can fits
Slim seltzer can fits
Canned drink in a koozie fits
Tall water bottle, Hydro Flask-style fits
Stemless or silicone wine cup fits
Plastic tumbler of iced anything fits
Kids' straw cup fits
Campground coffee mug, handled handle in the way
Espresso cup too narrow
There's a floor as well as a ceiling — under about 2 inches the base sits too loose to grip. And the handled mug is the honest exception across the board: the base fits, but the handle lands exactly where a fin needs to close.
How it works
Three parts, no moving parts.
The base spreads out.
A sloped dash, a wobbling tabletop, a sagging mesh pocket, a patch of gravel — none of them is flat, and a narrow cup base has no footing on any of them. The wide flexible base lies across the surface instead of balancing on a point.
The fins grip.
Flexible fins hold the drink by its bottom inch, so vibration, braking, and a hard corner can't walk it toward the edge.
It settles.
The rig brakes, the table rocks, a gust pushes the chair — the base flexes with the surface and brings the drink back level instead of letting it lean.
Nothing bolts to the coach. No drilling into the dash, no screws into a wall, no hole saw through the dinette. It sits on top of whatever surface is in front of you — cockpit, table, armrest, or ground — and rides in a basement bay between stops.
The rig, surface by surface
Cockpit to campsite, nothing sits level.
Everything in a motorhome either moves, tilts, or was never meant to hold a drink in the first place — the failures aren't random, they're built into the terrain.
The dash and the doghouse
Sloped, slick, and vibrating the whole time the rig is rolling — on many coaches there's no console at all, just the engine cover between the seats. One hard brake and whatever's sitting there keeps going.
The pedestal dinette
A single leg carries the whole tabletop, and that leg socket loosens with road miles. An elbow or a slide into the booth is enough to rock a full cup — the table itself can't be trusted to hold anything still.
The jackknife sofa
Firm, slick upholstery with a thin or absent armrest, and floor plans that claim every foot for storage instead of an end table. There's nothing beside you to set a drink on.
The campsite ground
Gravel, sloped grass, dirt — the site under your chair is rarely flatter than the site under the rig. A can set down in the grass finds the lean and goes over on its own.
Bedroom ledges and off-level counters
Rigs get leveled close enough for the fridge, not flat — a degree or two of tilt is normal life at most sites. A narrow ledge with a subtle downhill is exactly where a round bottle wanders overnight.
Versus what you do now
What owners already tried, and why it didn't stick.
Automotive console organizers wedged into the cab
Forum regulars recommend them for a cab with nothing built in, but they need plastic trimmed to fit, sit unanchored on the doghouse or the floor, and by their own admission they're a workaround, not a real holder.
Wall-mount marine gimbaled holders, screwed in near the seats
They require putting screws into the coach's wall, cover exactly one fixed spot, and their oversized rings let a tall cup flop around — owners report shimming it with a koozie just to stop the rattle.
A drop-in holder cut straight into the dinette table
It means hole-sawing a permanent opening into the laminate, it only works where you cut it, and the insert is shallow — the same failure as the factory holder it replaced.
The camp chair's built-in mesh pocket
Reviewers repeatedly report the mesh sags, leaks, and predates the 30 to 40 oz tumblers everyone actually brings to the fire now — the holder that shipped with the chair is the one nobody trusts.
Before you buy
Questions people actually ask.
Does it actually hold on while the rig is moving?
That's the terrain it's built for. The wide flexible base spreads across the dash or the table instead of balancing on a point, and the fins hold the drink by its bottom inch through vibration and braking. It resists tipping on a hard corner — it isn't a seatbelt, so a full drink still belongs in a holder, not loose on the seat.
Do I have to drill or screw anything into the coach?
No. Nothing attaches to the dash, the wall, or the dinette. It sits on top of whatever surface is in front of you and moves with you from the cockpit to the campsite.
Will my 40 oz tumbler fit?
Measure the bottom, not the rim. A base about 2 to 3 inches across settles in — the 40 oz Stanley-style tumbler does. A handled mug doesn't; the handle sits where a fin needs to close.
My dinette table already wobbles. Does this fix that?
No — the table's play is a leg-socket problem, not a drink problem, and this doesn't reach that far. What it does is hold the drink steady on top of a table that's still rocking, so the wobble stops being your cup's problem too.
Does it work outside, at the campsite?
Yes — on the picnic table, the camp chair armrest, or set straight on the ground. The wide footprint and the grip do the same job on gravel and grass that they do on the dash.
The campground picnic table is slatted wood and never level either — does that matter?
Same base, same answer. It doesn't need a flat, solid surface underneath — it spreads across whatever's there, slats and all, and settles the drink back when the table gets bumped.
I don't have factory cup holders at all in the cab. Does this actually replace them?
For a lot of owners, yes — it becomes the cab's only real holder. Set it on the dash or wedge it into the console spot you already improvised, and it holds where nothing built-in ever did.
How do I clean it?
Rinse it or run it through the dishwasher between trips. It's one piece of flexible material with nothing to take apart.
Who makes it, and where do I buy one?
It's called the Steadi, molded in small runs in Orange, California by Steadi Labs. Every order ships free from steadilabs.com, with 30 days to send it back if it's not for you.
Who makes it
Made start to finish in Orange, California.
The maker is Steadi Labs, a small veteran-founded company in Orange, California. It's injection molded — the mold, the material, and the color runs all sit within about three and a half miles of the shop, and every batch is molded there in small runs. The people who make it are the same people who answer hello@steadilabs.com.
Thirty days, wherever you use it.
Use it for a month. If it doesn't do what this page says, email hello@steadilabs.com and it gets made right — no forms, no fight.
Veteran-founded · Patent pending · Made in Orange, California
The dash was never built to hold your coffee.
The drink settles wherever you set it down — dash, dinette, camp chair, picnic table — and the next hard brake or gust off the gravel pad finds nothing worth chasing.
