A flexible base that holds your drink steady wherever camp actually sets one down — the Adirondack arm, the dock rail, the fire ring, the porch step. It settles in on wood and ground that were never built level.
Bring one up north — from $14.95Free shipping · 30 days at camp to prove it · no forms, no fight if it doesn't
Will your camp cup fit? A sticky note answers it — the test is below ↓

The status quo
At the lake place, almost nothing a drink touches is flat, dry, or standing still — and you've found a workaround for every one of them without ever quite fixing the problem.
It's the one surface at camp actually built for a drink — chair makers pitch the wide paddle arm as a spot for a can and a plate. But the legs are sunk into grass that was never leveled, and the same push-up-and-out motion that gets you off the chair for the next round is what sends the bottle over.
Weathered boards laid with gaps for drainage, cupped and warped after enough summers, and if any of it floats, it moves — every footstep, every wake off a passing boat. A drink that goes over here doesn't land on the floor. It goes in the lake.
No table ever makes it out to the circle. Chairs sit wherever the dirt is roughly flat, and the drink goes down into the grass next to a leg — invisible the second the fire becomes the only light, until a boot or the dog finds it.
Overflow seating for whoever didn't get a chair, on a floor that's pitched downhill on purpose so rain runs off. A can set down here starts life on a slope, and every trip past to the cooler is one more chance to catch it.
Cabin living rooms run small, the furniture is usually a hand-me-down that retired up north, and on a rainy afternoon the single table belongs to the puzzle. The mugs go to the couch cushions instead, re-tilting each time the quilt gets pulled back into place.
This isn't a crisis, it's just Friday-night cabin logistics — and somehow it's the one chore that never makes the opening checklist, because nobody thinks to write down 'figure out where the drinks go' this year either.
It's happened to you
The car's unloaded by headlight, the cooler's up the porch steps, and the first beer gets cracked standing up because every flat surface inside is still buried in duffel bags. It ends up balanced on a porch step — a floor that's pitched downhill on purpose.
Bare feet on dew-slick boards, the tumbler wedged between two planks while the mist burns off the water. The first fishing boat of the day idles past, and about thirty seconds later its wake reaches the floating section and tips the whole floor under the coffee.
Bottles set on the Adirondack arms, legs sunk unevenly into the lawn. It holds fine right up until somebody pushes off the armrests to go get the next round — the exact motion those arms were built to take.
No table made it out to the circle, so every drink sits in the grass beside a chair leg, invisible past the firelight. The kid on a marshmallow-stick run finds one with a shoe; the dog finds the other.
The thousand-piece puzzle has owned the coffee table since breakfast, so four mugs of cocoa are spread across the couch cushions and the arm of the sofa. Every re-tuck of the quilt tips one of them again.
One-note test
A square sticky note: 3 inches, exactly — same as the ceiling of what fits at camp.
A standard square sticky note measures exactly 3 inches on a side — one fact about office supplies that happens to double as the ceiling of what fits.
The can, the tumbler, the wine cup that replaced the stemware. Look at the base, not the rim — camp glassware tapers and rims flare, and the base is the only measurement that matters.
Base fits inside the square: it fits. Base hangs off the edges: too wide. Base rattling around alone in the middle, under 2 inches: too narrow.
The junk drawer already had the tool. Thirty seconds at the counter, and you know before the cup ever makes it out the screen door.
Fit, answered
One measurement decides every verdict below: a container base 2 to 3 inches across settles in, whether it's parked on the chair arm or wedged between two dock boards.
Two inches is a floor, not only three an upper limit — narrower than that and the base can't get a grip. The enamel camp mug is this list's one honest exception: its base lands right in range, but the handle occupies the spot a fin needs to close around.
The full fit database — Stanley, Red Bull, Yeti, and 30 more, with sourced base measurements →
The whole property
Nobody up here is being careless — the ground, the wood, and half the furniture were never built level, and plenty of what's underfoot moves on its own besides.
Wide enough that makers market them as a built-in table — but the chair stands on lawn or gapped decking, the wood slicks with condensation, and the whole frame flexes the moment the sitter shifts or stands.
Planks laid with drainage gaps that cup and warp over enough seasons, and if any section floats, it rides every footstep, wave, and boat wake. A whole industry of wake breakers exists because docks genuinely move.
Built out-of-level on purpose — a roughly quarter-inch-per-foot pitch away from the house so rain runs off. Every 'flat' spot up there is already leaning before anything gets set on it.
Camp chairs pulled onto root-lumpy, sloped ground with no table anywhere near seat height. Folding chairs that look steady in the garage go wobbly on loose dirt and packed pine duff.
Old, soft, hand-me-down furniture under a layer of quilts, in a small room where the one coffee table is usually claimed by a puzzle. Every seatmate's shift re-tilts whatever's balanced on the cushions.
No surface at all within reach — just the ground below, which was never flat either. Getting in or out swings the whole system, and the only place for a drink is a full roll-and-reach away.
Why drinks tip over at the lake cabin — and what actually keeps one standing — the full story →
Why more than one
Every cooler up north seems to produce the same tumbler at least twice, and by the second round at the fire ring nobody's entirely sure whose is whose. A color tells them apart before the guessing even starts, no matter which chair, dock board, or porch step it ends up parked on.
Build your set
Pick a pack, then give each one a color — so nobody has to ask which drink is theirs.
How it works
Camp ground and camp wood are never actually flat — lawns are bumpy, dock boards cup and warp, porch floors are built with a pitch. The wide flexible base lies across whatever's underneath instead of balancing on the one high spot.
Flexible fins hold the drink by its bottom inch from the sides, so it can't slide loose when the chair rocks, the dock tilts, or somebody bumps the table that isn't really a table.
A wake rolls under the dock, a knee bumps the arm, someone stands up out of the chair — the base flexes with whatever just moved and brings the drink back level.
From the reviews
Recent reviews of the Steadi, from every room and rig it lives in.
They’re a bit smaller than I thought they’d be. I can still use them ( I think), but not what I bought them fo.
Kevin Q. · 2026-07-29It works quite well........just need a little more time using it to get the best results.
Susan C. · 2026-07-28Genius! Finally I can sit in a corner of the couch and have my drink next to me. Works beautifully, sturdy and stable. I'm very happy I found this item.
jlhinckley · 2026-07-28Works great! If it saves you from cleaning your sofa or rug or washing anything it is worth it. Give it a try!
Marsha B. · 2026-07-25My kid doesn’t spill his drink in his bed anymore so….. it’s a win!
Jason R. · 2026-07-25Love these!
Angela C. · 2026-07-25All 99 reviews are for the drink base itself, collected across every place people use it.
Provenance
The maker is Steadi Labs, a small veteran-founded company in Orange, California. It's injection molded in small runs — nothing about it travels far before the drive up to camp: the mold, the material, and the color runs all sit within about three and a half miles of the shop. The people who make it read hello@steadilabs.com themselves, usually before the second cup of dock coffee.
Instead of what you do now
| A clamp-on Adirondack chair holder | The Cabin Cup Holder | |
|---|---|---|
| On the one chair it's clamped to | Holds a can steady there, once it fits | Settles in there too, and everywhere else at camp |
| What it does to the chair | Scratches the arm, or drills a hole to mount | Sits on top, nothing to drill or clamp |
| Fitting the arm you've got | Depends on the arm's exact width and shape | Works on any chair arm, no measuring first |
| Going down to the dock | Stays behind, bolted to the chair on the lawn | Moves with you, chair arm to dock to fire ring |
| Chair leaning on lumpy lawn | Only as level as the chair it's bolted to | Settles into the ground on its own |
| Setting it up | Screw in and drill, or clamp and hope it fits | No tools, no measuring, just sets down |
| Cost | Another purchase to justify, one per chair | One small piece that comes wherever you sit |
Buying guides for these chairs steer people away from clamp-ons — they call them an afterthought that scratches the arm — and toward buying an entirely new chair with a holder molded in. Screw-on versions mean drilling into the chair itself, fit depends on the arm's exact width, and either way the holder just leans with whatever chair it's bolted to.
Solves one chair, not the dock, the porch step, the fire ring, or the couch. The mesh ring on most camp chairs is sized to a decades-old standard can, and owners routinely ask what it's even for once a bottle or a big tumbler shows up — a hard-molded version needs its own drainage hole or it fills with rain and starts breeding mosquitoes.
Works only where the soil is soft enough to take it — and the ground under most fire rings and northern lawns is either packed hard or full of roots and rock, which resists the spike while soft soil lets it lean anyway. It does nothing for the dock, the porch, the chair arm, or the couch, and it parks the drink at ankle height, a re-plant away from wherever the group moves next.
Lightweight outdoor tables rock on a pitched porch floor and lumpy lawn and are one gust from tipping themselves. Enough tables to cover the porch, the dock, and the fire ring is a small furniture fleet that has to be hauled out at opening and packed away at closing — and it still doesn't solve the reach from the chair.
Q & A
That's the scene it's built for. The wide flexible base spreads across cupped, gapped boards instead of teetering on one high plank, and the fins keep a drink from sliding loose when a wake rolls through. Push it off level and it settles back.
It doesn't float — if it goes over the edge, it sinks like anything else you wouldn't want to drop off a dock, so treat it the way you'd treat your phone or a good knife out there and keep it back from the water's edge. Soaking it on purpose is a different story: rinse it off and it's fine.
Measure the bottom, not the top. A base 2 to 3 inches across fits — the 40 oz Stanley does. Handled mugs are the one exception; the handle lands where a fin needs to grip.
No. Nothing screws in, clamps on, or gets glued down. It sits on top of whatever surface is already there and moves with you from the chair to the dock to the porch.
Yes. The base spreads its own footprint across grass, dirt, or pine duff instead of needing a table or a spike to stand on, so the circle finally gets somewhere for a drink besides the dirt next to a chair leg.
Yes — it works at least as well on soft cushions as it does outside. The wide base keeps a drink from riding the slope of a couch cushion or a bunched-up quilt, which is worth having on a rainy afternoon too.
Movement is the whole design brief. It resists tipping and settles the drink back level when the floor shifts under it — it's not magic, so a hard kick from someone jumping off the dock is still a hard kick, but an ordinary wake is exactly what it's built to shrug off.
Rinse it at the outdoor spigot or run it through the dishwasher back home. It's one piece of flexible material with nothing to trap sap, sunscreen, or lake water inside.
It's called the Steadi, molded in small runs in Orange, California by Steadi Labs — veteran-founded and patent pending. Every order ships free from steadilabs.com, with 30 days to change your mind.
Bring it up to camp for a month. If it doesn't do what this page says — on the dock, the chair arm, the fire ring — email hello@steadilabs.com and it gets made right. No forms, no fight.
Veteran-founded · Patent pending · Made in Orange, California
Coffee stays put on the dock, a can stays put at the fire ring, cocoa stays put on the couch through the rainy afternoon — the wake rolls through and the drink settles right back, same as it always does.
Bring one up north — free shippingCheckout is on steadilabs.com — Steadi Labs is the company that makes it.