Match an Australian mattress to the internal platform of the exact bed-frame variant. Use the external frame and headboard measurements to plan the room. These are different checks: a frame labelled King and a large outside width do not by themselves confirm mattress compatibility.
Begin with your actual mattress
Record its manufacturer, size name and measured length and width. Mattress ranges can use their own specifications and tolerances, so keep the actual maker’s information rather than relying only on a generic size name. If you are buying a mattress later, establish the intended specification before choosing the frame.
Ask for the internal platform dimensions
The platform is the space that must support and accommodate the mattress. Upholstery, rails and a wide headboard can make the external frame much larger without enlarging that space. Do not subtract guessed rail widths from an outside dimension to calculate fit. Ask about the exact variant and support system.
Treat regional names carefully
Australian and overseas labels are not interchangeable measurement standards. A product called King or Super King must still be checked against the mattress you will use. The table below gives selected Sealy Australia reference measurements as an example of a named manufacturer’s published sizes; it is not a certification that every Farrelli frame fits them.
Plan the external frame separately
Draw the full frame and headboard in the room, including any offset or wider headboard profile. Add bedside furniture, wardrobe doors and walking routes. Two frames that suit similar mattress dimensions can occupy very different outside footprints. Compare the selected model rather than a generic bed icon.
Check support, assembly and access
Confirm the supplied slats, centre support or other platform construction and the relevant mattress guidance. Ask about assembly and the largest headboard or frame component for the delivery route. A bed that fits the room on a floor plan may still have a component that is difficult to get upstairs.
Confirm inclusions before ordering
A frame pictured with a mattress, bedding or side furniture is not automatically supplied with those pieces. Check the actual offer and any bundle selection. Keep the confirmed internal fit, external footprint and inclusions with the chosen variant so later delivery and assembly decisions refer to the same order.
Compare actual products
These examples use the dimensions currently listed for the selected models. Check the selected configuration and product details before ordering; the conceptual interior image is not a product photograph.
| Model | Listed overall dimensions | Compare |
|---|---|---|
| Shinhan Fabric Bed with Offset Headboard | King Size: 239 L x 305 W x 100 H cm | View product |
| Mortimer Fabric Bed with Padded Headboard | King Size: 234 L x 217 W x 104 H cm | View product |
| Emman Fabric Bed with Padded Headboard | King: 226 L × 210 W × 90 H cm Super King: 226 L × 230 W × 90 H cm | View product |
Australian mattress reference: a manufacturer example
| Sealy Australia size | Published width × length |
|---|---|
| Queen | 152.5 × 203 cm |
| King | 183.5 × 203 cm |
| Super King | 203 × 203 cm |
Source: Sealy Australia mattress-size guide. Manufacturer dimensions and tolerances vary. Match your actual mattress to the internal platform; this table does not establish compatibility with a particular Farrelli bed.
Frequently asked questions
Do external dimensions prove mattress fit?
No. You need the internal platform dimensions for the selected variant.
Is a King label enough?
No. Compare the actual mattress and frame platform measurements, particularly across markets.
Is a mattress included?
Only if it is explicitly included in the selected product or package.