Cutting board sizes look like a small detail until you are dicing an onion on a board so cramped the pieces keep sliding off the edge, or wrestling a whole roast on something built for a lime.
The short answer: small is 28 x 18 cm (11 x 7 in) for quick cuts, medium is 32 x 22 cm (12.5 x 8.5 in) for everyday prep, large is 38 x 28 cm (15 x 11 in) for carving and serving. Below, what each one is really for and how to pick the one your kitchen will actually reach for.
The three sizes
Small, medium, large: what each one is really for
Almost every cutting board on the market falls into three working sizes, and each one has a job. A small board is your quick-task board: slicing a lemon, mincing garlic, halving a tomato, the little five-second cuts you do a dozen times a day. A medium board is the everyday workhorse, big enough for a full round of vegetable prep but light enough to grab without thinking. A large board is the carving and serving surface: room for a roast chicken, a rack of ribs, or a full charcuterie spread without anything crowding the edge.
The trap most people fall into is buying one medium board and asking it to do all three jobs. It can, barely, but you end up rinsing it constantly between tasks and running out of room the moment you cook for more than two.
The exact numbers
Cutting board dimensions, in cm and inches
Marketing terms like small and large mean nothing until you see the measurements, so here are the exact ones for the BoardMere acacia range.
The Small measures 28 x 18 cm (about 11 x 7 in), the Medium measures 32 x 22 cm (about 12.5 x 8.5 in), and the Large measures 38 x 28 cm (about 15 x 11 in). Every board sits between 1.5 and 2.5 cm thick, which is the sweet spot for solid acacia: heavy enough to stay planted on the counter while you work, but still easy to lift, rinse, and store.
That thickness matters more than people expect. A board that is too thin slides and flexes; a board that is too thick becomes a chore to move. This range keeps the weight reassuring without turning your board into furniture.
Match it to your kitchen
How to pick by counter, sink, and task
Start with your counter and your sink, not the food. A board should have room to work beside it and still fit under the tap for rinsing. If you have compact counters or a small apartment sink, a medium board is the most versatile single choice: it handles real prep without dominating the space. If you have a roomy kitchen and cook full meals, the large board earns its footprint every week.
Then match it to what you cook most. Quick eaters and small-batch cooks lean on the small board and reach for it constantly. Anyone who preps vegetables from scratch wants the medium as their default. And if you carve roasts, host, or build boards for guests, the large is the one that saves you. Most kitchens end up using at least two of the three, which is exactly why they rarely stop at one.
Why one is rarely enough
Prep, carving, and keeping raw meat separate
There is a practical reason cooks keep more than one board, and it is not just about space. Working off a single surface means chopping raw chicken and then slicing the salad vegetables on the same wood, so you are stuck stopping to scrub between every stage. A dedicated board for raw meat and a separate one for produce keeps cross-contamination out of the equation and keeps your prep moving.
The sizes map neatly onto that workflow. The small handles fruit and garnish, the medium runs your everyday produce prep, and the large stays clear for carving and serving. That is why the three-board set is the honest recommendation for most kitchens: it covers prep, protein, and presentation in one non-toxic, plastic-free upgrade instead of forcing one board to do everything. Whatever sizes you land on, an occasional coat of food-grade mineral oil keeps every board in the rotation sealed and water-resistant.
Quick reference
Cutting board sizes at a glance
| Size | Dimensions | Best for |
|---|---|---|
| Small | 28 x 18 cm · 11 x 7 in | Herbs, garlic, fruit & quick cuts |
| Medium | 32 x 22 cm · 12.5 x 8.5 in | Everyday vegetable & general prep |
| Large | 38 x 28 cm · 15 x 11 in | Carving, serving & charcuterie |
| Thickness | 1.5 - 2.5 cm | Stays planted, still easy to lift |
Pick your size
Which non-toxic acacia board fits your kitchen?
Good to know
Frequently asked questions
What is the most useful cutting board size?
If you only buy one, go medium: around 32 x 22 cm (12.5 x 8.5 in). It is big enough for a full round of vegetable prep and still light enough to rinse and store easily.
How thick should a wood cutting board be?
Between 1.5 and 2.5 cm is the sweet spot for solid hardwood. Thinner boards slide and flex while you cut; much thicker and the board becomes a chore to lift and wash.
Do I really need more than one cutting board?
Most kitchens use at least two. Keeping raw meat on its own board and produce on another removes the cross-contamination question and saves you scrubbing between every stage of prep.
Keep reading
Related guides
One board per job, in solid non-toxic acacia
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