20–30 litres, open-topped, no deeper than 35 cm, no higher than 90 cm. That is the specification for toy storage that gets used. A bin deeper than 35 cm hides the toys at the back from a child's arm; a shelf above 90 cm is adult-only storage pretending to be a toy system; a lid is a lock.
Shop the pieces in this guide
The dimensions that decide whether it works
| Dimension | Working range | What goes wrong outside it |
|---|---|---|
| Bin volume | 20–30 L | Under 15 L: too many bins, endless sorting. Over 40 L: one bin becomes a dumping ground |
| Bin depth (front to back) | ≤ 35 cm | A 4-year-old's reach is 30–35 cm; deeper means the back third never comes out |
| Shelf height | ≤ 90 cm for the top usable shelf | Above 90 cm, only adults can reach; toys migrate to the floor |
| Bin opening | ≥ 25 × 20 cm | Smaller, and a chunky toy will not go in without being angled |
| Unit depth overall | 30–40 cm | Deeper units project into the play area and get climbed on |
| Load per shelf | ≤ 15 kg | Toy density is high: a 25 L bin of wooden blocks weighs 12–15 kg |
Open versus lidded, honestly
Lidded boxes win on dust and lose on use. A lid adds two steps (open, close) to a task a child does 10–20 times a day, and the box gets used for long-term storage instead of daily play. Open bins get emptied because the effort is zero.
- Daily toys: open bins, low, labelled with a picture taped to the front for pre-readers.
- Rotating toys: lidded boxes stored out of reach, swapped every 3–4 weeks. Rotation keeps novelty without buying anything.
- Small parts (Lego, Playmobil, craft): lidded, but shallow — 6–10 L with a clip lid, stacked no more than three high.
- Large items (dress-up, ride-ons): no bin. A 45 cm deep open cubby or a coat hook at 100 cm.
How many bins for how many toys
A rough count that works: one 25 L bin per category, and six categories cover most playrooms — blocks and construction, vehicles, figures and small-world, art materials, puzzles and games, dress-up. That is 150 litres of toys, which is a realistic volume for two children under 8.
| Storage unit | Bins it holds | Total volume | Footprint |
|---|---|---|---|
| 3 × 3 cube unit, 30 cm cubes | 9 × 12 L | 108 L | 90 × 30 cm |
| 2 × 4 low unit, 33 cm cubes | 8 × 20 L | 160 L | 132 × 35 cm |
| Open shelf, 80 × 40 × 80 cm, 2 levels | 6 × 25 L | 150 L | 80 × 40 cm |
| Storage cabinet with doors, 80 × 40 × 80 cm | 4 × 30 L + shelf | 150 L, hidden | 80 × 40 cm |
A closed cabinet with two lockable doors is the right answer in a shared living room: it holds the same volume as an open shelf and removes the visual noise. In a dedicated playroom, open is better because a child can see and reach everything without asking.
Safety items that are not optional
- Strap every unit over 60 cm to the wall. A 80 cm cabinet with three open bins has a high centre of gravity once loaded, and children climb.
- No unit over 90 cm in a room where under-5s play unsupervised.
- Rounded edges or 2 mm radius on low units; sharp 90° corners at toddler head height are the most common furniture injury in the home.
- Bins under 5 kg when full. A 25 L bin of blocks at 15 kg cannot be lifted by a 4-year-old, and gets dragged instead, which is when fingers get caught.
- No gaps between 8 and 25 cm at floor level — that is the head-entrapment range. Solid plinths, not open legs.
The floor is part of the system
Plan for 1.5 m² of clear floor per child at play, and expect 30–40% of toys to be out at any moment. A storage wall along one side of the room, 80–90 cm tall and 30–40 cm deep, leaves the rest usable. Storage in the middle of a playroom becomes an obstacle course.
For the room as a whole, the kids room dimensions guide covers bed, desk and play clearances; the desk height chart handles the study corner.
Keep reading
More dimension guides are in the collection, and the full index is on the furnolio journal.
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