Quick answer: most babies are ready for a high chair at around 6 months, when they start solid food. The NHS says three signs appear together from around 6 months: your baby can stay in a sitting position and hold their head steady, can pick up food and bring it to their mouth, and can swallow food instead of spitting it back out. When you see all three, that is a good time to bring in a high chair.
A high chair is really a solid food chair. So the question "when is my baby ready for a high chair?" is the same as "when is my baby ready for solid food?" Here is what the health guidance says, and how to choose and use a chair once you get there.
At what age do babies start solid food?
Around 6 months. The World Health Organization and UNICEF recommend that babies are fed only breast milk for the first 6 months, and that "nutritionally adequate, safe complementary (solid) foods are introduced from six months" while breastfeeding continues up to 2 years or beyond.
The NHS gives the same timing: introducing solid foods "should start when your baby is around 6 months old." If your baby was born early, the NHS advises asking a health professional when to start, so speak to your paediatrician.
What are the signs my baby is ready?
The NHS lists three signs which, "when they appear together from around 6 months of age", show your baby is ready. Your baby will be able to:
- "stay in a sitting position and hold their head steady"
- "co-ordinate their eyes, hands and mouth so they can look at the food, pick it up and put it in their mouth by themselves"
- "swallow food (rather than spit it back out)"
Signs that are often mistaken for readiness
The NHS also lists behaviours that parents often read as readiness but are not: chewing their fists, waking up in the night more than usual, and wanting extra milk feeds. In the NHS's words, "These are all normal behaviours for babies and not necessarily a sign that they're hungry or ready to start solid food."
Why does sitting up matter so much?
Because swallowing safely depends on it. The NHS says: "Your baby needs to be sitting safely in an upright position (so they can swallow properly)."
The European safety standard for high chairs, EN 14988, is written for the same stage. Its scope says high chairs "are for children up to 3 years of age who are capable of sitting unaided."
How do I use a high chair safely?
Three rules from the NHS cover most of it:
- Use the harness every time. "Always use a securely fitted safety harness in a high chair."
- Stay close. "Never leave babies unattended on raised surfaces."
- Watch every meal. "Always stay with your baby when they're eating in case they start to choke."
The NHS also suggests keeping distractions to a minimum at mealtimes and not sitting your baby in front of a television, phone or tablet.
What should I look for in a high chair?
- A five-point harness. All three chairs below have one, according to their pages.
- A named safety standard. Look for EN 14988 on the product page.
- Age range and weight capacity. Both are on every product page. Stop using the high chair mode once your child passes either one.
- A tray you can remove. It makes cleaning after meals much easier.
- Wheels that lock, if it has wheels. The Walnut and Marshmallow Smart pages list brakes or a wheel stopper.
Which high chair suits my baby?
All three chairs in our high chairs collection are listed from 6 months, which matches the age most babies start solid food.
| High chair | Age on page | Weight capacity on page | Standard on page | Converts to |
|---|---|---|---|---|
| Walnut High Chair | 6 months to 3 years | High chair up to 15 kg (stool up to 76 kg) | EN 14988 | Booster seat, toddler or adult stool |
| 4 in 1 Cherry Berry Grand | 6 months to 7 years | 0 to 20 kg | EN 14988 | Booster seat, study table and chair |
| Marshmallow Smart | 6 months to 5 years | Up to 20 kg | Page says it "complies with the European Safety Standards" but names no standard | Swing and activity chair |
Walnut High Chair
The Walnut page lists a five-point harness, a tray with two positions that you can detach, a fold for storage, and wheels with brakes. Its PU leather seat, the page says, wipes clean with a baby wipe.
4 in 1 Cherry Berry Grand
The Cherry Berry Grand page lists a five-point harness, a removable tray and a "non-slippery and anti-tipping design". It converts to a booster seat and later to a study table and chair, and its page lists an age range of 6 months to 7 years.
Marshmallow Smart
The Marshmallow Smart page lists a five-point harness, five height levels, a removable dual tray, and wheels with a stopper "to ensure the high chair doesn't move when your baby is sitting in it".
Note that EN 14988 covers high chairs for children up to 3 years. When a chair converts into something else, like a stool or study table, the standard notes that other European standards may apply to that use.
What else do I need for first meals?
A first cup. The NHS suggests introducing a cup from around 6 months and offering sips of water with meals. Our guide to baby sippers and cups explains which kind of cup the NHS recommends and what to look for. For more first year products, browse everything for 6 to 12 months or our feeding collection.
Questions parents ask
Can my 4 month old sit in a high chair?
Wait for the three readiness signs, which the NHS says appear together from around 6 months. All three high chairs we sell are listed from 6 months. If your baby was born early, ask your paediatrician when to start.
Does my baby need to sit without support?
Yes. The NHS's first readiness sign is being able to stay in a sitting position and hold their head steady, and EN 14988 is written for children "capable of sitting unaided".
How long can my child use a high chair?
Until they pass the age or weight limit on the product page, whichever comes first. For the high chair mode that is 15 kg on the Walnut and 20 kg on the Cherry Berry Grand and Marshmallow Smart.
Do I need to stay with my baby while they eat?
Yes, every time. The NHS says: "Always stay with your baby when they're eating in case they start to choke."
More guides: how to choose a stroller by age, car seat stages explained, and all our parent guides.
Sources
- NHS, "Your baby's first solid foods" (readiness signs, sitting upright, high chair harness, staying with your baby; page last reviewed 19 Feb 2026): nhs.uk/conditions/baby/weaning-and-feeding/babys-first-solid-foods/
- World Health Organization, "Infant and young child feeding" fact sheet (breast milk only for 6 months, solid foods from six months): who.int/news-room/fact-sheets/detail/infant-and-young-child-feeding
- EN 14988:2017+A1:2020, Children's high chairs, Requirements and test methods (scope), Estonian Centre for Standardisation catalogue: evs.ee/en/evs-en-14988-2017-a1-2020-consolidated
- R for Rabbit product pages for each high chair named above (age group, weight capacity, standard and features as stated there).