What Size Is a Double Bed?
Knowing the size of a double bed matters because it affects room layout, bed frame fit, bedding, and delivery access. This guide is for solo sleepers, teens moving up from a twin, renters, and anyone comparing a double to a queen before buying. One common misunderstanding is that a double bed is different from a full bed. In standard Canadian sizing, they are the same size. At Furniture Spot & Mattress Outlet in Halifax, we regularly help shoppers compare double, queen, and king sizes in-store before deciding.
What is the standard size of a double bed?
A standard double bed measures 54 inches wide by 75 inches long. In centimetres, that is commonly listed as 137 cm x 190.5 cm on Furniture Spot pages, while Canada lists the same size as 134.5 cm x 190.5 cm because of rounding. In feet, a double bed is 4 feet 6 inches wide by 6 feet 3 inches long.
| Bed Size | Dimensions (inches) | Dimensions (cm) | Dimensions (feet) |
|---|---|---|---|
| Double / Full | 54" x 75" | 134.5 to 137 x 190.5 cm | 4'6" x 6'3" |
Brands can vary slightly in how they round metric dimensions, so always check the exact product page before buying. Tolerances happen.
Is a double bed the same as a full bed?
Yes. In Canada and the U.S., double bed and full bed are standard interchangeable names for the same size. Current bed-size guides from Furniture Spot & Mattress Outlet label the category as “Full or Double Mattress Size."
That means if you see “double mattress,” “full mattress,” or “full/double,” you are usually looking at the same standard size unless the listing clearly says Full XL or another variation.
How does a double compare to a twin and a queen?
A double is wider than a twin, but smaller than a queen. A standard twin is 38" x 75", a double is 54" x 75", and a queen is 60" x 80". That means a double gives 16 extra inches of width over a twin, and a queen gives 6 extra inches of width plus 5 extra inches of length over a double.
| Bed Size | Dimensions (inches) | Dimensions (cm) |
|---|---|---|
| Twin / Single | 38" x 75" | 96.5 x 188.0 to 190.5 cm |
| Double / Full | 54" x 75" | 134.5 to 137 x 190.5 cm |
| Queen | 60" x 80" | 152 to 152.5 x 203 to 203.5 cm |
This is why a double is often the middle option for someone who wants more room than a twin without moving up to a queen. If you share the bed, consider motion transfer and personal space.
Who is a double bed usually best for?
A double bed is usually best for one sleeper who wants more space than a twin, a guest room, or a smaller bedroom where a queen may feel too large. Furniture Spot & Mattress Outlet in Halifax describes full/double as a good option for a single sleeper who wants more space or for a couple who does not need much space, and several current Furniture Spot double-mattress articles describe it as a strong fit for solo sleepers, teens, and guest rooms.
It can work for two people in a tighter setup, but most current Furniture Spot guidance frames it as the more practical choice for one person or occasional guest use rather than regular long-term use for couples.
What should you measure before buying a double bed?
Before buying, measure your doorway, hallway turns, and stairs. Furniture Spot Halifax specifically warns that narrow hallways or doorways can make it difficult to move a larger bed into the room, and Furniture Spot’s current size guides also recommend measuring the room before choosing a bed size.
Use this checklist:
-
bedroom width and length
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doorway width
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hallway corners
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stair landings
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elevator depth, if you live in an apartment
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walking space around the bed
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space for side tables, dressers, and closet doors
If your room is small, plan walking clearance on both sides. A double can fit where a queen feels tight, but it can still crowd a room once other furniture is added.
Does every double mattress fit every double bed frame?
Not always perfectly. The standard size category matches, but the finished frame can be slightly larger than the mattress footprint, and some brands list small differences in rounded centimetres. That is why it is smart to check both the mattress size and the exact frame dimensions before ordering.
If you use a platform bed, confirm slat spacing and support requirements. If you are using a box spring or foundation, make sure it matches the same double/full footprint.
FAQ
What size is a double bed in inches?
A standard double bed is 54" x 75".
What size is a double bed in feet?
A standard double bed is 4 feet 6 inches wide and 6 feet 3 inches long. That comes from converting 54 inches and 75 inches into feet and inches.
Is a double bed the same as a full bed?
Yes. Double and full are two names for the same standard mattress size.
Is a double bed bigger than a twin?
Yes. A double is 16 inches wider than a standard twin, while both are typically 75 inches long.
Is a double bed smaller than a queen?
Yes. A queen is 6 inches wider and 5 inches longer than a double.
Related reading
Reality Check
Common mistakes include assuming a double and a full are different sizes, checking only the mattress size and not the frame size, and forgetting to measure the delivery path. Another common issue is choosing a double for two regular adult sleepers when the real need may be a queen for extra width and length.
A double bed is usually best for one person who wants more room than a twin, or for a guest room where space is limited. It is a weaker fit for taller sleepers who need more length or couples who want more personal space night after night.
