A wide, flexible base that grips the tailgate, the cut table, or the gang box lid — hard, vibrating surfaces included. No mount, no system — it just sits down and holds.
Get one for the truck — from $14.95No mount, no plate, nothing to bolt on — it just sits down and holds. Free shipping, 30 days to prove it on site.
Will your tumbler fit? Skip the tape measure — one sticky note answers it ↓
The problem, named
Where the drink goes on a jobsite isn't decided once — it gets re-decided each time the crew moves, and none of the regulars were ever built for it.
Doubles as workbench, break table, and staging shelf, ribbed bed liner and all — which means it also gets loaded, unloaded, and slammed shut with whatever's still sitting on it.
A sheet of plywood across a pair of sawhorses — the horses — serves as plan table, lunch counter, and saw station all at once. Every cut walks a cup an inch closer to the edge, and the moment someone needs that sheet, the table goes, cup included.
The lockable steel site chest is the one big surface everyone shares — and the one that opens loudest, thrown back for a tool run a dozen times a shift and launching anything left standing on it.
Up on the scissor lift there's no surface at hand height at all. The drink rides the diamond plate at boot level, where it gets kicked, tips over cords, and rolls to the toe board whenever the platform moves.
Late in a job the only flat spots left are the customer's new hardwood and counters — exactly the surfaces a sweating tumbler rings or a knocked coffee turns into a repair.
Nobody calls in over any of this. It's just a decision the crew re-makes all day, surface by surface, and the drink never actually wins one.
The 3-inch question
A square sticky note: 3 inches, exactly — same as the ceiling of what fits, pulled straight off the pad in the truck.
A standard sticky note is 3 inches square, full stop — and that square happens to double as the fit test's ceiling.
Look at the bottom, not the rim — tumblers taper and thermos lids flare, so the base is the only measurement that decides anything.
Base sits inside the square? It fits. Hangs off the edges? Too wide for the base. A small puck lost in the middle — under 2 inches? Too narrow.
No tape measure needed, and no trip to the store to check bottle diameters against a chart. Pull a sticky note off the pad in the truck, set down whatever's already going into the cup holder, and you'll know before the first cut of the day.
Will it fit my cup
One measurement decides every verdict below: a container base in the range of 2 to 3 inches settles in. Everything on this list — the site regulars and the ones that don't make it — follows from that single line.
There's a floor as well as a ceiling — under 2 inches, a base sits too loose to grip, same as an espresso cup on a desk. And the handled mug is the honest exception: the base is often in range, but the handle sits exactly where a fin needs to close.
The full fit database — Stanley, Red Bull, Yeti, and 30 more, with sourced base measurements →
The trick, explained
Ribbed liners, diamond plate, a rough sheet of plywood — none of it is flat the way a countertop is. The wide, flexible base conforms to the texture instead of teetering on a few high points.
Flexible fins close around the bottom inch of the drink, so saw vibration and a jostled table can't walk it toward the edge.
A lift lurches, a sheet gets yanked out from under it, a toolbox lands nearby — the base flexes with the jolt and brings the drink back level instead of letting it ride off.
What's in it
This isn't a living-room product pressed into service outside — the wide base and flexible fins hold on ribbed tailgate liners, diamond plate, and a vibrating cut table the same way they hold on a cushion. Hard and moving is what it's built for.
The gas-station coffee, the poured thermos cup, the 40 oz tumbler, the case-of-water bottle, the energy drink before break. Cans and bottles set in; cups and tumblers drop through the fins and get gripped by the bottom inch, whatever the base was sitting on a minute ago.
No plate to mount, no magnet that only works on the gang box, no clamp sized for a desk edge. One piece of molded, matte material that sits on whatever's doing table duty this hour — the tailgate, the horses, the lift deck — and rides in a truck door pocket when the job's done.
Why more than one
Half the crew runs the same 40 oz tumbler because it's the one that actually survives a jobsite. Set two of them down on the same gang box lid and there's no telling whose is whose until somebody takes a wrong sip.
Build your set
Pick a pack, then give each one a color — so nobody has to ask which drink is theirs.
The alternatives
| A PACKOUT-style tool-box cup | The Jobsite Cup Holder | |
|---|---|---|
| Away from the box or the truck | Nothing to click into out there | Sits on whatever's doing table duty |
| What it actually needs to work | A PACKOUT wall plate or box lid | No mount — any surface works |
| Cost | Another purchase to justify | One small piece |
| Once it's mounted and staying put | Locked to the plate — doesn't budge | Settles in, still moves with you |
| Following the crew to the next surface | Bolted in place — the crew moves without it | Tucks in a bag, rides along |
| Room for a 40 oz tumbler | Sized tight — owners ask for bigger | Fits a base up to about 3 inches |
| Outfitting the rest of the crew | Means another cup, another plate to mount | Just another small piece to grab |
It only exists where that stacking system lives — by the door or on the truck, not at the cut table or up on the lift — and it means buying into the whole modular lineup just to hold a drink.
Ferrous steel only, so it holds on the gang box and the fender and nothing else — not lumber, not plywood, not drywall, not the fiberglass ladder. And a full 40 oz tumbler is real weight to ask a thin magnetic ring to carry.
Sized for a desk edge, not a sawhorse or a tailgate — the jaws max out at a couple of inches, which rules out most of what's actually on site.
It solves tipping by taking the drink out of reach entirely. The coffee goes cold, the water goes warm, and it sits there instead of getting drunk on the regular schedule the heat actually calls for.
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.
The people behind it
The maker is Steadi Labs, a small veteran-founded company in Orange, California. It's injection molded in small runs, and nothing about it travels far — the mold, the material, and the color runs all sit within about three and a half miles of the shop, closer than most crews drive for a lumber run. The people who make it read hello@steadilabs.com themselves, usually before the first toolbox talk of the day.
The practicalities
That's exactly the surface it's built for. Hard, textured, and vibrating isn't a downgrade from anything softer — the wide base and flexible fins grip ribbed liners and diamond plate the same way, and settle a bumped drink back into place instead of letting it walk further toward the edge.
Vibration is the whole design problem it answers. The fins hold the drink by its bottom inch, so a circular saw walking the sheet doesn't walk the cup off it — it holds steady through the cut, not just between them.
It's one piece of solid material with no seams or hinges for dust to work into — rinse it off or wipe it down between cuts. It doesn't keep dust off an open lid, but it keeps the cup itself from sliding while the dust settles.
It's the base that matters, not the rim — a bottom 2 to 3 inches across fits, the 40 oz Stanley-style tumbler included. A handled mug doesn't: the handle lands right where a fin needs to close.
Yes — the deck is exactly the kind of hard, moving surface it's built for. A bottle set down loose can still get kicked, but the base resists tipping through the lurch and vibration of the lift running, and settles the drink back level.
No. Nothing clamps, mounts, or depends on a steel surface to magnetize to. It just sits on top of whatever's doing table duty that hour — the tailgate, the horses, the gang box lid — and moves with the crew to the next one.
It's one piece of flexible, molded material with nothing rigid to crack and nothing that comes apart — built for the bumps and drops that are already normal on site.
Rinse it or run it through the dishwasher. It's one solid piece of material with nothing to trap dust or grit.
It's called the Steadi, molded in small runs in Orange, California by Steadi Labs. Every order ships free from steadilabs.com, with free returns for 30 days if it's not earning its spot in the tool bag.
Run it through a month on site. If it doesn't do what this page says — on the tailgate, at the cut table, up on the lift — email hello@steadilabs.com and it gets made right. No forms, no fight.
Veteran-founded · Patent pending · Made in Orange, California
Your drink holds its ground on the tailgate, the cut table, the lift deck — wherever the crew ends up — and the walk back to the truck stops being the only 'safe' place to set it down.
Shop now — free shipping to the jobCheckout is on steadilabs.com — Steadi Labs is the company that makes it.