A single bed is 92cm wide by 188cm long — the standard Aussie size for kids, teens and guest rooms. The catch most parents miss: an adult-height teen at 175cm+ will outgrow the 188cm length, not the 92cm width. We hold over 90 single bed frames in stock across our Sydney, Melbourne and Brisbane warehouses, from $80 metal frames to $500 trundle styles.
What size is a single bed in Australia?
An Australian single bed measures 92cm wide by 188cm long. It's the smallest standard bed size sold here. King single is 107cm wide and 203cm long — wider AND longer. If your child is over 12 or taller than 165cm, a king single will see them through to adulthood. A standard single won't.
Single vs king single — which one do you actually need?
Single beds suit kids under 12, guest rooms used a few times a year, and bedrooms under 2.8m wide where 15cm extra width matters. King single beds suit teens, adult guests, and any room over 2.8m wide. The price difference is $20-$80; the size difference will matter every night for years.
The 15cm extra length on a king single is the bigger deal. Australian boys grow to an average 178cm — a standard single (188cm long) gives them 10cm clearance at the feet. A king single (203cm) gives them 25cm and won't need replacing.
| Spec |
Single bed |
King single bed |
| Width |
92cm |
107cm |
| Length |
188cm |
203cm |
| Best for |
Under 12, occasional guests |
Teens, adult guests, long-term |
| Room width needed |
2.4m minimum |
2.6m minimum |
| Frame price range |
$80-$400 |
$100-$500 |
What types of single bed frames are there?
Five real categories. The trundle option is the one most parents don't realise exists until they need an extra bed for a sleepover.
| Type |
Best for |
Price |
Key feature |
| Metal single frame |
Budget, rentals |
$80-$180 |
Lightest to move when redecorating |
| Wooden single frame |
Kids' rooms |
$130-$300 |
Solid pine handles rough use better than MDF |
| Trundle single |
Sleepovers, siblings sharing |
$200-$450 |
Hidden second bed pulls out from under |
| Loft single |
Studying teens |
$250-$500 |
Desk and storage underneath; weight rating typically 100kg |
| Storage drawer single |
Small kids' rooms |
$200-$400 |
2-3 drawers built into the base |
What single bed mattress size do I need?
A single mattress is 92cm x 188cm. A king single mattress is 107cm x 203cm. They are not interchangeable — a king single mattress will hang off a standard single frame, and a standard single mattress on a king single frame leaves a 15cm gap at the foot that swallows pillows and toys.
Quick buyer's checklist
- Sleeper height now AND in 3 years: under 165cm = single fine, over = king single
- Room width: 2.4m minimum for a single with bedside table
- Weight rating: most single frames rate 100-150kg — adult users on a "kids" single break it
- Slat count: 8+ for a single, 10+ for king single
- Trundle option: useful if siblings host sleepovers
- Mattress dimensions: confirm 92 x 188cm for single, 107 x 203cm for king single
Frequently asked questions
Are single bed and king single mattress dimensions different?
Yes. Single is 92cm x 188cm. King single is 107cm x 203cm. The 15cm extra length is the main difference — width adds 15cm too. Sheets are not interchangeable between sizes.
What's the difference between a single sofa bed and a single bed?
A single sofa bed converts between sofa and bed for guest rooms or studios. A standard single bed doesn't convert. Sofa beds are 92cm wide when unfolded — same as a single — but most are 5-10cm shorter at 178-185cm long.
How long does delivery take?
We dispatch within 1-2 business days from our Sydney, Melbourne and Brisbane warehouses. Capital city addresses arrive in 3-5 business days. Perth and Adelaide take 5-8 days. Regional and Tasmanian addresses take 5-12 days.
Can I pay with Afterpay or Zip?
Yes. We accept Afterpay, Zip, Klarna and PayPal Pay in 4. A $200 single bed frame works out to four fortnightly payments of $50 with Afterpay. A $350 trundle bed is $87.50 a fortnight.
What's your returns policy?
We offer 15-day returns on unassembled single bed frames in original packaging. Every frame comes with a 12-month manufacturer warranty. See our return policy for full details.
Complete the bedroom
A single bed works hardest with the right companions. Add a single mattress sized 92 x 188cm, a headboard with matching bolt holes, and a cube storage unit for toys, books and clothes a kids' wardrobe won't hold.
Why buy your single bed from Simple Deals
We're a family-run Australian business, trading since 2018. We hold single bed stock in our Sydney, Melbourne and Brisbane warehouses, dispatch in 1-2 business days, and back every frame with a 12-month warranty and 15-day returns. Real people answer the phone on 1300 456 786, Monday to Friday. Over 50,000 Australian customers; 4.66★ from 5,363 verified reviews.
