Crib / Cot bed size
28 × 52 inches
71.1 × 132.1 cm · 711 × 1321 mm · 0.94 m² · North America standard
About the Crib / Cot
The US crib standard, fixed by federal regulation so that any mattress fits any crib frame — the gap between mattress and frame must be under 3 cm, which is a safety rule rather than a comfort one.
The numbers
| Width | 28 in · 71.1 cm |
| Length | 52 in · 132.1 cm |
| Area | 0.94 m² |
| Width per person, shared | 14 in · 35.6 cm |
| Minimum room size | 191.1 × 192.1 cm — 60 cm clear each side and at the foot |
| Standard | North America |
Closest sizes
| Bed | Region | Size | vs Crib / Cot |
|---|---|---|---|
| Small Single | United Kingdom | 75 × 190 cm | 4 cm wider, 58 cm longer |
| Single | United Kingdom | 90 × 190 cm | 19 cm wider, 58 cm longer |
| EU Single | Continental Europe | 90 × 200 cm | 19 cm wider, 68 cm longer |
| Twin | North America | 96.5 × 190.5 cm | 25 cm wider, 58 cm longer |
| Twin XL | North America | 96.5 × 203.2 cm | 25 cm wider, 71 cm longer |
| Small Double | United Kingdom | 120 × 190 cm | 49 cm wider, 58 cm longer |
Frequently asked questions
What are the dimensions of a Crib / Cot bed?
28 × 52 inches, or 71.1 × 132.1 cm. North America standard.
What size room does a Crib / Cot bed need?
At least 191.1 × 192.1 cm to leave 60 cm of walking space on both sides and at the foot. Less than that and the bed fits but the room does not work.
How much space does each person get in a Crib / Cot?
14 inches (35.6 cm) each if two people share it. For reference, a US Twin — a single bed — is 38 inches wide.
What is the area of a Crib / Cot bed?
0.94 square metres.