Every question, answered.

That's exactly the surface it's built for. A moving, tilting dinette is harder on a drink than one sitting still, and the wide flexible base spreads across the laminate instead of letting a narrow can slide with the brake. The fins hold the bottom inch, so a hard stop gets absorbed instead of launched.

Yes. Measure the base, not the rim: 2 to 3 inches across settles in, and the 40 oz Stanley is exactly the size that started this search in the first place. It never needed the console's hole to begin with.

Yes — that's most dinettes, holder or none. It sits on top of the laminate without a drilled hole, and it holds through the sway and braking of a travel day the same way it holds sitting still at the site.

It doesn't need to fit inside it. Set it on the console's flat armrest, the cushion beside you, or a fold-down tray if your fiver has one — anywhere flatter than the recess itself.

Yes — hard, flat surfaces hold at least as well as soft ones. A warped plank or a table sitting a couple degrees off level is exactly the kind of tilt the base is built to settle back from.

No, and that's on purpose — clamp fit depends on matching your chair's exact tubing, which is the reason those adapters fail so often. Set it on the ground beside the chair instead and it doesn't care what shape the chair's frame is.

No. Nothing goes into the console, the dinette, the frame, or the pad. It sits on top of whatever surface it's on and moves with you from the theater seats to the fire ring.

Rinse it at the spigot or run it through the dishwasher back home. It's one piece of flexible material with no hinge, clip, or seam to trap grit.

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 send it back if it doesn't earn a spot in the basement bay.

There's no fixed number — it depends on how many of the five stops matter to you. A single evening at a site can move a drink across the theater seats, the dinette, the picnic table, and a camp chair at the fire ring, so it's common to keep one at the dinette, one in the truck cab for the drive, and a couple in the basement bay for chairs later. Since none of them install into anything, there's no wrong number to start with — just move it to wherever the drink is.

There's no multi-season field data to point to yet, so that's an honest gap rather than a guess. What's true today: it's one molded piece with no fabric, hinge, or seam to fray or crack — the parts that fail first on a sagging armrest mesh or a clip-on chair holder — and it packs flat in the basement bay between trips the same as anything else that rides back there. The 30-day return window covers it in the meantime: if it doesn't hold up the way this page describes, email hello@steadilabs.com and it gets made right.

No — the fins grip the outside of the container, not what's inside it. Percolator coffee in an insulated camp cup at 7 a.m. and a koozied can at happy hour get held the same way, by the container's bottom inch, regardless of temperature.

Those generally run wider than the fit range. A Nalgene 32 oz Wide Mouth measures 3.5 inches at the base and a Hydro Flask 32 oz Wide Mouth measures 3.58 inches — both past the fins' 3.15-inch flex ceiling. Tumblers like the 40 oz Stanley fit because they taper narrower at the base than at the rim; a straight-sided bottle that size doesn't taper at all.

Only slightly. A standard 12 oz can measures about 2.6 inches across at the base, and a koozie adds a little width without adding real stability of its own — with or without one, the base lands well inside the 2 to 3 inch range.

Check each one before it goes in the tote. Kids' cups and squeeze bottles vary more in base size than adult drinkware does, from narrow sippy cups to wide sport bottles, so there's no single verdict the way there is for a 12 oz can or a Stanley tumbler. A sticky note held against the base settles it in a few seconds, the same test as an adult's cup.

It's aimed at exactly the gap a new owner hits first — the console that won't seat a modern tumbler, the dinette with no holder at all. It isn't fifth-wheel-specific hardware, so it works the same in the truck cab, at home, or at the fire ring, which makes it useful well past the first trip.

An expander only ever fixes the one hole it's installed in, and reviewers of that category consistently flag the same problem: a full 40 oz tumbler up top makes the whole insert top-heavy. A flexible base skips the console recess entirely, so it isn't limited to one seat or one hole — it moves to the dinette, the picnic table, or the fire ring without being reinstalled.