Short answer: stacking toys are one of the most useful toys you can give a baby from about 6 months. At first babies mouth, bang and knock the pieces over; by about 12 months many can place one piece on another; and by 18–24 months they start stacking several pieces and fitting cups inside each other by size. Choose soft, BPA-free silicone or smooth wood, with pieces too large to swallow.
Why stacking toys are so good for babies
- Fine motor skills: grasping, letting go at the right moment and turning pieces to fit builds hand control needed later for feeding and drawing.
- Hand–eye coordination: lining up one piece over another is surprisingly hard work for a baby.
- Early maths ideas: big and small, on top and inside, more and less.
- Cause and effect: knocking a tower down (the best part, for most babies) teaches that actions have results.
- Patience and problem solving: when a cup doesn’t fit, they try another.
This is why stacking toys are a staple of Montessori-style play: one simple, open-ended toy that grows with the child.
What to expect by age
| Age | What babies typically do | How to play |
|---|---|---|
| 6–9 months | Grab, mouth, bang pieces together, drop them | Offer one or two pieces at a time; soft silicone doubles as a teether |
| 9–12 months | Take rings off a post, knock towers down, put objects into cups | Build a tower and let them knock it over; hide a toy under a cup |
| 12–18 months | Place one piece on another, start nesting cups | Stack two together, then hand them the third |
| 18–24 months | Build towers of 3–6 pieces, start sorting by size | Name sizes and colours as you play; count pieces together |
Every child develops at their own pace. These are rough guides, not targets.
How to choose a safe stacking toy
- Material: food-grade, BPA-free silicone is soft, quiet, easy to wash and safe to chew. Smooth, non-toxic finished wood is a good alternative for older babies.
- Size: no piece small enough to fit through a toilet-roll tube, which is a common household test for choking hazards.
- No loose parts: avoid small beads or rattles that could come out.
- Easy cleaning: everything goes in the mouth, so pick a toy you can wash in warm soapy water or sterilise.
- Few pieces to start: 4–6 pieces is plenty for babies under a year.
Simple stacking games to try at home
- Tower and topple: you build, baby knocks down. Repeat endlessly.
- Peek-a-boo cup: hide a small toy under a cup and lift it.
- Bath time pour: silicone cups make great pouring toys in the bath.
- Big or small: hold up two pieces and ask which is bigger.
- Count as you stack: “one, two, three, crash!”
Our Montessori silicone stacking toy set is designed for 6–18 months, with soft pieces that are safe to chew. You can find more in our baby toys collection, and if your baby is chewing everything, see our guide to teething signs and relief.
Frequently asked questions
At what age can a baby stack toys?
Most babies start placing one block on another between 12 and 15 months, and build small towers by about 18 months. Before that, knocking down and mouthing are normal, useful play.
Are silicone stacking toys safe for teething?
Food-grade, BPA-free silicone is generally safe to chew. Check pieces regularly for tears and replace damaged toys.
How do I clean silicone stacking toys?
Wash in warm soapy water and rinse well. Many silicone toys can also be boiled or sterilised; check the product instructions.
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