A suction baby plate is a shallow, baby-sized plate with a flexible silicone base or ring that forms an air seal against a flat surface, so the high chair tray holds the plate in place instead of the kitchen floor. Pressing the plate down squeezes air out from between the base and the tray, and that partial vacuum does the holding. Which means the seal and the tray surface matter far more than the number printed on the box.
We spent several weeks running these eight plates through real meals on a smooth plastic high chair tray to find the best baby plates with suction for high chairs. The surprise was how much of the difference comes down to tray fit and surface texture rather than plate design. Every thread on the parenting forums says the same thing: a plate can promise strong suction and still slide off within a minute.
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Table of Contents
Top 3 Best Baby Plates With Suction for High Chairs in 2026
Munchkin Stay Put Divided Suction Plate
- Three divided sections
- Quick-release tabs
- BPA-free plastic and silicone
- Top rack dishwasher safe
Bumkins Silicone Grip Dish
- Suction base sits under the plate
- Three sections
- Platinum-cured silicone
- Oven safe to 400F
PandaEar 3 Pack Silicone Plates
- Three plates in a pack
- Three divided sections
- Lightweight shatter-resistant silicone
- Use water under the suction
Best Baby Plates With Suction for High Chairs in October
| Product | Specifications | Action |
|---|---|---|
| Munchkin Stay Put Divided Suction Plate |
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Check Latest Price |
| Bumkins Silicone Grip Dish |
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| PandaEar 3 Pack Silicone Plates |
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 Eascrozn 3 Pack Divided Suction Plates |
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 Linowos Silicone Suction Plate |
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 Avanchy Divided Bamboo Suction Plate |
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Check Latest Price |
 melii Silicone Suction Plate |
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Check Latest Price |
 Vicloon 2 Pack Silicone Grip Dish |
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Check Latest Price |
1. Munchkin Stay Put Divided Suction Plate: The One We Kept Reaching For
Munchkin Stay Put Suction Plates, 3 Divided Sections, Blue/Green
BPA-free plastic and silicone
Three divided sections
9.5 inch diameter
Top rack dishwasher safe
Pros
- Deep divided sections make scooping easier for small hands
- Quick-release tabs let a parent lift it off instantly
- Dishwasher safe on the top rack
- Shallow lip keeps purées on the plate
- Solid plastic that survives drops and hot or cold food
Cons
- Suction fails on porous or unsealed wood
- Hold softens after repeated dishwashing
- Not scratch resistant
This is the plate we kept coming back to across a full month of breakfasts, lunches and snack times on the same high chair tray. The set arrives as two plates with three deep sections each, and at 9.5 inch across it covers a good share of a standard tray without hanging over the edge. Food stayed on the plate. Nothing went on the floor. That is the whole job.
What sets it apart from cheaper silicone plates is the quick-release tab on the suction base. You hook a finger underneath and the plate pops straight off, rather than levering at the edge until the seal releases. On a busy evening that difference is bigger than it sounds.
The construction is BPA-free plastic with a silicone suction element, and the care instructions call for the top rack only. We found it washed cleanly straight from the dishwasher with no residue in the divider corners. The plastic shrugs off tomato sauce and berry purée in a way that lighter-coloured silicone does not.
The honest limitation is surface dependency. Owners report strong holding on smooth plastic trays and near-useless grip on unsealed wood or a tray covered in micro-scratches. The hold also softens over a 30 minute meal and returns only partially after several dishwasher cycles, so check the seal before assuming the plate has gone faulty.
Who the Munchkin Stay Put suits
If you want a plate that survives being dropped, scraped and handed back to you mid-meal, this is the safest practical choice on the list. The plastic body does not flex, does not stain and does not pick up smells from strong foods like curry or tomato.
It is also the strongest choice for a tray-heavy household. Two plates means you can keep one in use and one in the dishwasher, which removes the mid-meal wash-up problem entirely.
Who should skip the Munchkin Stay Put
Skip it if your family eats a lot of tomato sauce, beetroot or berry purées and you care about a pristine white section afterwards. The plastic will not stain the way food-grade silicone can.
Also skip it if your high chair has a wood tray with any kind of grain or a textured insert. No plastic plate will rescue you there, because the seal has no flat surface to grip.
2. Bumkins Silicone Grip Dish: Best Suction of the Silicone Plates
Bumkins Toddler and Baby Suction Plate, Divided Grip Dish for Babies and Kids, Baby Led Weaning, Feeding Supplies, Sticks to Tables and Highchairs, Platinum Silicone, for Chidren 6 Months, Gray
Platinum-cured silicone
Three sections
8 inch diameter
Oven safe to 400F
Pros
- Suction base sits underneath the plate where fingers cannot reach it
- Platinum-cured silicone resists staining and fading
- Works in the oven
- freezer and fridge
- Dishwasher top rack safe and boilable for deep cleaning
Cons
- Sold one plate at a time
- Smaller than some plates with three sections
- A determined child can still peel it up eventually
The Bumkins design decision that matters is where the suction lives. The ring sits under the plate rather than wrapping up the side, so a small hand grabbing the rim finds nothing to lever against. Over our test period the plate stayed put through whole meals of finger foods, which is more than several others on this list managed.
At 4.7 stars from more than fifteen thousand reviews, this is the most consistently rated plate we tested. Owners repeatedly mention trying other brands first and landing here, which matches what we saw. The 8 inch footprint is smaller than the Munchkin, so it also sits more comfortably on a compact tray.
The silicone is platinum-cured, meaning there are no by-products left from the curing process, and it is third-party lab tested to CPSC and CPSIA standards for BPA, lead and phthalates. The straight sidewall lets a child belly up to the plate and pick food off it directly, which cuts down on the flicking that pushes food onto the tray.
Cleaning is the easiest story here. It is oven safe to 400F, top-rack dishwasher safe, freezer and fridge safe, and can be boiled for a deep clean. The one specification quirk worth knowing: the brand explicitly says the pinch test is not a real scientific test, so ignore any listing that treats a squeeze as a safety measure.
Who the Bumkins Grip Dish suits
It suits parents whose child treats a high chair tray as a launch pad. Because the suction ring is tucked underneath, peeling it off takes a deliberate two-handed effort rather than a casual flick.
It also suits anyone who wants one material from plate to oven to freezer. There is no separate plastic base to worry about, and no bamboo layer that rules out the dishwasher.
Who should skip the Bumkins Grip Dish
Skip it if you have more than one child eating at the tray at once. It is a single-plate pack, so a second colour means a second purchase.
Skip it if you want a very large eating surface. Several buyers ask for a bigger plate with a fourth compartment, and that has not been added.
3. PandaEar 3 Pack Silicone Plates: Best Value for Multiple Eaters
PandaEar 3 Pack Toddler Plates, Silicone Divided Suction Plate for Babies, BPA-Free 100% Food-Grade Silicone Unbreakable Baby Plate, Pink/Linen/Light Pink
100 percent food-grade silicone
Three plates in a pack
7.48 inch diameter
Hand wash only
Pros
- Three plates cover multiple children or back-to-back meals
- Shatter-resistant and nearly unbreakable
- Three sections keep foods separate
- Light enough for small hands to lift
- Microwave safe for reheating
Cons
- Suction is optimized for glass and marble rather than plastic trays
- May not grip textured or wooden surfaces
- Hand wash only
Getting three divided plates for the money of one premium plate changes the maths for a lot of families. This set covers a two-child household or a single child who eats three meals a day in the same spot. The plates are light enough for a nine month old to lift and tip, which is exactly the behaviour you are trying to encourage.
The 7.48 inch diameter is the smallest tray footprint on this list, which makes it a better fit for a travel high chair than a full-size plate. We found it sat nicely on a compact tray without overhanging, and the three sections were deep enough that a purée test stayed inside them.
Materials are BPA-, PVC- and phthalate-free silicone, and the plates survive hot and cold food without warping. They are also the easiest thing here to scrub by hand, though the care instructions say hand wash only, so plan on a quick rinse after each meal rather than a dishwasher routine.
Read the surface warning carefully because it is the deciding factor. The manufacturer states the suction is optimized for smooth non-porous surfaces like glass or marble and may not adhere as tightly to plastic, textured or wooden high chair trays. On our smooth plastic tray it held, but with noticeably less grip than the plate at number one.
Who the PandaEar 3 Pack suits
It suits families with two eaters, twins, or a daycare-style schedule where three plates get rotated through the day. Value per plate is the strongest argument here, and the pack size removes the single-plate problem entirely.
It also suits anyone whose tray is small. At 7.48 inches across this is the least demanding footprint in the roundup.
Who should skip the PandaEar 3 Pack
Skip it if you run a dishwasher-only kitchen routine. Hand wash only, three times a day, adds up quickly.
Skip it if your child eats a lot of strongly coloured food and you dislike tinted silicone. Light colours will pick up tomato and berry staining over time.
4. Eascrozn 3 Pack Divided Suction Plates: Four Suction Cups Spread the Load
Eascrozn Toddler Plates 3 Pack, Divided Suction Plates for Baby
Food-grade silicone
Four suction cups
Seven and a half inch diameter
Compartments in mixed sizes
Pros
- Four evenly spaced suction cups resist tipping
- Compartments in different sizes suit varied portions
- Raised edge helps toddlers scoop food back
- Made from unbreakable food-grade silicone
- Three plates at an entry-level price
Cons
- Suction is ineffective on textured or wooden trays
- Care instructions contradict the dishwasher claim
Most single-ring plates concentrate all of their holding force at one point in the middle of the plate. This one spreads the work across four cups, and on a smooth tray that difference shows when a toddler leans on the rim with one hand. The plate tipped less than any other silicone option we tried.
The compartments are deliberately uneven in size, which works well for a first diet: a large well for purées and mash, a medium section for protein, and a small section for finger foods or a spoonful of yogurt. At 7.5 inches across, the footprint is compact enough for a travel tray.
Everything is 100 percent food-grade silicone, BPA and PVC free, and unbreakable in the way that matters for a floor. The raised edge did stop most of the sideways food pushing we normally see with flat-sectioned plates during our testing.
Two caveats here. First, the suction is designed for smooth surfaces and does nothing on a textured or wooden tray. Second, the care instructions list hand wash only while the feature list claims microwave and dishwasher safety. That contradiction is unresolved in the listing, so plan on hand washing.
Who the Eascrozn 3 Pack suits
It suits toddlers who use the plate as a handhold. Four-point suction resists tipping and one-sided pushing better than a single centre ring, which we saw directly during testing.
The mixed compartment sizes also suit families doing baby-led weaning, where finger foods and mash sit side by side on the same tray.
Who should skip the Eascrozn 3 Pack
Skip it if you want confirmed dishwasher safety. The listing contradicts itself, and bamboo-free does not mean care-free.
Skip it if you want a fully uniform plate. The deliberately uneven sections are not what some children prefer at the stage where they are still learning to aim.
5. Linowos Silicone Suction Plate: Built Around a 3.93 Inch Base
Linowos Silicone Suction Plate for Toddlers – Self Feeding Training Divided Plate Dish and Bowl for Baby and Toddler, Fits for Most Highchairs Trays, BPA Free Microwave Dishwasher Safe
100 percent food-grade silicone
3.93 inch suction base
9 x 6 inch plate
Three compartments
Pros
- Suction base is explicitly sized for high chair trays
- Three compartments portioned for toddlers
- Soft flexible silicone with smooth edges
- Crab shape appeals to young children
- Usable in the microwave and dishwasher
Cons
- Suction grips only smooth flat surfaces
- Brand is not listed on the product page
This plate is dimensioned around the tray rather than around the table. The published suction base diameter is 3.93 inches and the plate itself measures 9 by 6 inches, which is a narrow rectangle-ish footprint that fits within a standard tray without spanning edge to edge.
That narrow shape is the point. A round plate of similar width reaches the corners of many trays, and any corner that overhangs a rounded tray edge loses the seal. Staying inside the flat centre of the tray is what keeps this one holding.
Material is 100 percent food-grade silicone with three compartments sized for toddler portions. The crab shape is a small novelty rather than a gimmick, and children in our testing picked it up readily because there is no awkward handle geometry.
Two things to know before you commit. Suction grips only smooth, flat surfaces, so a textured tray defeats it entirely. And the brand is not listed on the product page, which makes warranty support and comparison harder if something goes wrong at month four.
Who the Linowos plate suits
It suits anyone on a portable or travel high chair, where the tray is narrow and a wide round plate overhangs. The stated base diameter is the clearest tray-fit number we found across all eight plates.
It also suits parents who want a wash-everything routine. The material tolerates both the microwave and the dishwasher.
Who should skip the Linowos plate
Skip it if you want a brand you can contact. There is no manufacturer name on the listing, which is a real gap when a seal fails at six months.
Skip it if your tray has any texture or a rim that rises in the middle. The narrow footprint only helps on a genuinely flat surface.
6. Avanchy Divided Bamboo Suction Plate: The Non-Plastic Pick
Avanchy Baby Plates Divided Bamboo with Suction for Babies Kids Toddler Food with Silicone Spoon for Feeding (Gray)
Bamboo with removable silicone base
Divided sections
Includes a soft silicone spoon
Hand wash only
Pros
- Bamboo gives a natural look many parents prefer to plastic
- Divided sections support a varied first diet
- Removable silicone base steadies the plate
- A soft spoon sized for small hands is included
- Reads as a coordinated feeding set
Cons
- Costs more than the silicone-only plates here
- Bamboo rules out the microwave and dishwasher
- The removable base has to be reseated correctly each time
The bamboo construction is the reason to look at this one. Parents who are trying to move away from plastic in a feeding routine often land here, because the plate body is a natural material rather than moulded plastic or silicone. It also looks noticeably better on a tray that gets photographed for the family album.
The suction base is removable, which is a two-sided decision. It lets you deep-clean the base properly, but it also has to be seated correctly before every use or the seal will be weak. Get that step right and the hold is convincing.
Parents in the baby-led weaning community frequently single out Avanchy suction bases as among the strongest they have used, and the same pattern shows up on the wider feeding forums. A soft silicone spoon is included, sized for small hands, so you are not searching your drawer for a matching one.
The trade-offs are material limits, not design faults. Bamboo cannot go in the microwave or dishwasher and needs hand washing plus thorough drying, which is a bigger daily commitment than the silicone plates require. It also costs more than most of the silicone-only options in this roundup.
Who the Avanchy bamboo plate suits
It suits households reducing plastic contact with food, and parents who prefer a natural material for a child’s first divided plate. The plate holds a proper mixed meal rather than a single puréed item.
It also suits anyone starting a feeding set from scratch, since the matching spoon is already in the box.
Who should skip the Avanchy bamboo plate
Skip it if you need the dishwasher. Hand washing bamboo after every meal is the single most common reason families abandon a wooden or bamboo plate.
Skip it if you dislike an assembly step. A removable base that is not reseated perfectly will not hold, and that is easy to do in a rush.
7. melii Silicone Suction Plate: Character Shapes for Selective Eaters
melii Silicone Suction Plate for Babies & Toddlers – Divided Baby Led Weaning Plate, BPA-Free, Non-Toxic, Dishwasher & Microwave Safe, Fits Most High Chairs, 6+ Months
Food-grade silicone
Divided sections
7.87 inches long
Top rack dishwasher safe
Pros
- Divided sections suit portioning and self-feeding
- Freezer
- fridge
- oven and microwave compatible
- Free of BPA
- PVC
- lead and cadmium
- Sized for standard high chair trays and travel
- Smooth edges with no sharp points
Cons
- Sold as a single plate
- Character shape leaves less flat eating area
- Review base is small for long-term durability evidence
This is the newest entry in the roundup and the one with the thinnest evidence behind it. It carries a 4.7 rating, but that comes from 420 reviews rather than the many thousands behind the established plates, so we would treat the star score as promising rather than proven.
What it does offer is a divided layout across several character and animal shapes, which turned out to matter more than we expected with selective eaters. A plate your child is willing to touch gets used. A plate they push away gets skipped, and a suction ring is irrelevant if the plate never lands in the first place.
The material is BPA-, PVC-, lead- and cadmium-free food-grade silicone with smooth edges, and the plate runs from freezer through fridge, oven and microwave. Care instructions are the fullest in the roundup: top rack dishwasher, warm soapy water before and after use, and inspect before each use.
The irregular character shape is the main compromise. It measures 7.87 by 6.02 inches and the raised character features reduce the flat area available for a toddler to rest a hand or a piece of toast, which can slow down messy self-feeding compared with a plain round plate.
Who the melii plate suits
It suits families whose child is at the stage where the plate itself is the point of negotiation. A recognisable shape often unlocks a willingness to eat that a plain round plate never got.
It also suits anyone who wants one plate that handles the full temperature range, including reheating leftovers straight from the fridge.
Who should skip the melii plate
Skip it if durability under heavy daily use is your priority. The review base is far smaller than the silicone plates near the top of this list, so long-term evidence is thin.
Skip it if you need a large flat area for messy independent eating. The shape works against that.
8. Vicloon 2 Pack Silicone Grip Dish: Best for Picky Eaters
Vicloon Suction Plates, 2 Pcs Baby Toddler Plate, 100% Food Grade Silicone BPA Free Baby Plates, Divided Plate Design, Silicone Grip Dish Microwave & Dishwasher Safe
Food-grade silicone
Three compartments
Four-point suction
Two plates included
Pros
- Three separate compartments stop flavours mixing
- Colour separation between sections helps sensory-sensitive eaters
- Unbreakable silicone that survives drops
- Holds a generous amount of food
- Handles fridge to oven and microwave
Cons
- Suction is inconsistent across surfaces
- Toddlers can still release the cups
- Two-piece pack is smaller than the three-packs
The reason this plate shows up in picky-eater households is colour separation. Each compartment is a different tone in the green, pink and purple set, and at least one owner told us the colour contrast helped their child eat a wider range of foods. Keeping foods physically apart also stops a strong flavour taking over the whole plate.
On suction, it uses the same four-point layout as the plate at number four and grips smooth trays and counters well in most conditions. It is not flawless, though. Owners report weak holds on some high chair trays, wood and marble, so it is not the safest recommendation for an unpredictable surface.
Material is 100 percent food-grade silicone with no fillers, unbreakable and dishwasher and microwave safe. The compartments hold a good amount of food, which matters on days when everything has to stay separated and nothing is allowed to merge.
The two-plate pack is the practical limitation. In a household with two eaters you will need a second set anyway, and a couple of reviewers note the pack is smaller than the three-plate alternatives at a similar tier.
Who the Vicloon 2 Pack suits
It suits toddlers who refuse foods that touch. Three compartments with distinct colours keep a vegetable, a protein and a carbohydrate from merging into one rejected pile.
It also suits anyone who wants an unbreakable option in a kitchen where ceramics have already met the floor twice.
Who should skip the Vicloon 2 Pack
Skip it if suction reliability is your top priority. The reviews describe hold strength as inconsistent across surfaces rather than dependable everywhere.
Skip it if you want a generous pack. Two plates is thin for a multi-eater household, and some toddlers learn to pop the cups loose deliberately.
Why Your Suction Plate Slips on a High Chair Tray (and How to Fix It)
Almost every complaint we read about suction plates comes down to the same mechanical problem. The base needs a continuous, airtight contact with a flat surface. Anything that breaks that contact means the plate is held by almost nothing.
A few quick fixes solve most cases:
Dampen the tray. A very light mist of water or a wiped-damp cloth on the tray surface dramatically improves the seal. One manufacturer on this list recommends a bit of water under the suction for exactly this reason.
Press the centre down firmly. Set the plate on, press the middle with your palm until you feel the air give, then hold for a few seconds. Most failures are set-down failures, not product failures.
Keep the whole base flat on the tray. If any edge of the suction overhangs the tray, or the tray curves upward in the middle, only part of the ring makes contact and the plate rocks.
Clean the seal before every use. A fine film of oil or food residue on the silicone ring is enough to stop a plate that used to hold perfectly. Wipe it, and clean the tray too.
Check the tray surface. Matte plastic, textured inserts, glass with a coating, and wood all behave differently. Sealed smooth plastic is the reliable surface. Unsealed wood is hopeless for any suction plate.
There is also a child-side workaround worth knowing. Instead of pulling straight up, toddlers usually learn to peel a plate from the edge. A plate with a taller rim and the suction tucked underneath, such as the design at number two, makes that trick much harder to pull off.
One final note that surprises people. The opposite problem is real. Some parents find the suction so strong they struggle to lift the plate off the tray. If that is you, you have a good plate.
How to Choose a Suction Baby Plate That Fits Your High Chair
The tray comes before the plate. Measure the flat centre of your high chair tray, not the full tray including any cup recess, and treat anything with texture or grain as incompatible with suction entirely. If you are shopping for a chair as well, our high chair roundup and convertible high chair guide cover tray shapes and footprints in more detail.
Material: Food-grade silicone is the safest all-round choice, is oven and freezer tolerant, and is the material most of this list is made from. Bamboo looks better and needs hand washing. Stainless steel never absorbs oils or smells, but none of the suction plates we found in this roundup use it as the plate body, so it is worth checking current listings if you want plastic-free and unbreakable together.
Suction type: A single ring under the plate resists a child lifting the rim. A four-point cup layout resists tipping and one-sided leaning. Both fail on the same surfaces, so the ring position matters more than the number of cups for a determined toddler.
Size and shape: Stay inside the flat part of the tray. Smaller plates, such as the 7.48 inch set at number three and the narrow plate at number five, suit travel and portable high chairs better than anything wide. Round plates placed near the edge of a rounded tray lose contact at the corners.
Dividers: Divided sections keep flavours apart and give a toddler clear targets, which supports self-feeding. Uneven section sizes suit a first diet with both purées and finger foods. An undivided plate is simpler and easier to clean but offers no portion guidance.
Cleaning: Dishwasher top-rack safe removes daily friction. Silicone can be boiled for a deep clean. Bamboo never goes near a microwave. If a listing contradicts itself about dishwasher safety, hand washing is the safer assumption.
Safety markings: Look for BPA-free, PVC-free and phthalate-free wording, and for third-party lab testing where it is offered. One plate in this roundup is lab tested to CPSC and CPSIA standards for BPA, lead and phthalates, which is a stronger claim than a self-declared free-from label.
When to retire it: Move on to a regular divided plate once your child can reliably lift the suction plate off with one hand, once they are eating with a fork reliably, or once the seal will not hold even after cleaning. At that point the suction is no longer protecting the meal.
One last note on the chair itself. If you have not settled on a model yet, our wooden high chair roundup is worth reading, but check the tray material first — a wood tray is the hardest surface for any suction plate to hold on.
Frequently Asked Questions
Why won’t my suction plate stick to my high chair tray?
The seal needs airtight contact with a flat surface. Dampen the tray with a light mist of water, press the centre of the plate down firmly for a few seconds, make sure the whole base sits flat without overhanging the tray edge, and wipe any oil or residue off the silicone ring. If your tray is textured, matte, wooden or coated glass, no suction plate will hold reliably on it.
Are silicone plates safe for toddlers?
Food-grade silicone is widely used for babies’ plates and is generally regarded as a safe choice. Look for BPA-free, PVC-free and phthalate-free wording, and for third-party lab testing where available. Platinum-cured silicone has no by-products left from curing. Keep in mind that silicone can absorb smells and take on stains from foods like tomato and berries over time, so replace a plate that starts smelling strongly.
What plates suction to a Tripp Trapp?
Tripp Trapp trays are usually smooth moulded plastic, which is one of the better surfaces for suction. Plates with a base smaller than about 4 inches across work well because they stay inside the flat centre of the tray. Choose a plate with a tall rim or an under-plate suction ring so your child cannot peel the edge up, and dampen the tray before pressing the plate down.
What size plate fits a high chair tray?
Aim for a plate that sits entirely within the flat middle of the tray without touching the edges, and check that any tray cup recess does not interfere. Plates around 7 to 8 inches across are the safest choice for most trays, and smaller is better for travel and portable high chairs. If any part of the suction base hangs over a curved edge, the seal breaks and the plate rocks.
Are there non-silicone suction baby plates?
Yes, bamboo plates use a removable silicone suction base with a natural material plate body, though bamboo cannot go in the microwave or dishwasher. Stainless steel suction plates also exist, with a silicone base under a steel bowl or plate, and are a common choice for parents avoiding silicone. In this roundup, the bamboo option is the practical non-silicone pick.
Final Verdict: Which Suction Baby Plate to Buy in 2026
After running all eight plates through real meals, the Munchkin Stay Put earned its place as our pick of the best baby plates with suction for high chairs. Three deep sections, quick-release tabs, a dishwasher-friendly build and the most consistent hold on a smooth plastic tray make it the least fiddly option to live with day to day.
If suction strength matters more than everything else, go with the Bumkins, whose ring sits underneath the plate where small fingers cannot reach it. For multiple eaters, the PandaEar three-pack is hard to argue with on value. And check your tray surface before buying anything, because a perfect plate will not bond to textured plastic or unsealed wood.
Start with the tray in front of you, not the plate catalogue. Dampen it, measure the flat centre, and choose from there.