Quiz & tool
Bed size calculator: what fits your room?
Enter your room's floor size in centimetres. The calculator checks each bed size, allowing for the frame and a walkway, and shows what fits comfortably, what's a squeeze, and what won't fit.
How it works
- A bed for two needs a walkway on both sides; a bed for one can go against a wall, so it only needs one.
- It also leaves a walkway at the foot of the bed.
- The frame allowance adds to the mattress size, because frames are bigger than mattresses. Upholstered beds with big headboards can need more: check the frame size on the product page.
- It checks the bed both ways round in the room.
Doors, wardrobes and radiators take space too, so measure the clear floor area. Sizes explained: bed sizes in Ireland.
Mattress sizes used
| Size | cm |
|---|---|
| Single (3ft) | 90 × 190 |
| Small double (4ft) | 120 × 190 |
| Double (4ft6) | 135 × 190 |
| King (5ft) | 150 × 200 |
| Super king (6ft) | 180 × 200 |
Common questions
How much space do you need around a bed?
A walkway of around 60 cm on each side you get in from, and at the foot, is a comfortable rule of thumb. 50 cm is snug; 70 cm feels roomy.
What size bed fits a 3 m by 3 m room?
Put your measurements into the calculator to check, allowing for the frame. Remember to subtract space taken by wardrobes and other furniture.
Keep reading
All guides & quizzes- Quiz & toolFind your perfect bed: a 5-question quizAnswer 5 quick questions about your room, storage and budget and we will suggest a bed size and type, with matching beds in stock for Ireland.
- Quiz & toolWhich mattress suits you? Take the quizAnswer a few quick questions about how you sleep and we will suggest a mattress firmness and type, with matching mattresses in stock for Ireland.
- Quiz & toolKids' bed finder: by age & room sizeTell us your child's age, the room size and what you need (storage, desk, sleepovers) and we'll suggest suitable kids' beds in stock for Ireland.
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