The average bedroom size is 132 square feet, about 11 × 12 ft, according to the home-cost guides HomeGuide and Angi. A secondary bedroom runs about 10 × 12 ft (120 sq ft) and a master about 14 × 16 ft (224 sq ft); the building code sets only a minimum, 70 sq ft and 7 ft each way. In our bedroom layout planner, with 24 in walkways and both sides of the bed open, an 11 × 12 holds a king bed, a dresser and a 48 in desk, and a 10 × 12 holds a queen with both.
How big is the average bedroom?
Two home-cost guides, HomeGuide and Angi, both put the average bedroom at 132 square feet, roughly 11 by 12 feet, and Angi gives 10 × 10 ft to 14 × 16 ft as the common range. That average sits between two other sizes they give: a 10 × 12 ft secondary bedroom and a 14 × 16 ft master. Here is what each guide says, and the one number that comes from the building code.
| Bedroom | Size | Sq ft | Who says it |
|---|---|---|---|
| Average bedroom | 11 × 12 ft | 132 | HomeGuide, Angi |
| Secondary bedroom | 10 × 12 ft | 120 | HomeGuide; Angi says about 120 sq ft |
| Guest bedroom | 10 × 10 ft to 10 × 15 ft | 100–150 | HomeGuide 10 × 10 ft to 10 × 12 ft; Angi 10 × 12 ft to 10 × 15 ft |
| Kids' bedroom | 8 × 10 ft to 10 × 10 ft | 80–100 | HomeGuide |
| Master (primary) | 14 × 16 ft | 224 | HomeGuide, Angi |
| Code minimum | 7 ft or more each way | 70 | International Residential Code, R304 |
From HomeGuide's and Angi's bedroom-size guides, and section R304 of the International Residential Code (as summarized by Fine Homebuilding). Square feet are width × length.
People also search for a "standard", "typical" or "normal" bedroom size. The code doesn't define one; it only requires a habitable room of at least 70 sq ft that is at least 7 ft in every direction, which a 7 × 10 ft room just meets. For master bedrooms there is survey data: in the National Association of Home Builders' 2018 survey of builders, the typical new home had 312 sq ft in its master bedroom.
What fits in an average-size bedroom
Square feet don't tell you where the bed goes, so we ran each size through the bedroom layout planner, the planning engine behind our layout guides. It places a bed, a dresser and a desk against the walls, and passes a layout only if there's 24 in beside and at the foot of the bed, 30 in to pull out the desk chair, 34 in in front of the dresser, a clear door swing, and a 24 in walking route from the door to all of it. Each cell is the biggest bed that passes with both sides of the bed open.
| Room (feet) | Bed alone | + dresser | + dresser and desk | Same, 30 in paths |
|---|---|---|---|---|
| 10 × 10 100 sq ft | Queen | Twin | None | None |
| 10 × 12 120 sq ft | King | Queen | Queen | Full |
| 11 × 12 132 sq ft | King | King | King | Full |
| 10 × 15 150 sq ft | King | King | King | King |
| 14 × 16 224 sq ft | King | King | King | King |
Biggest bed that passes every bedroom layout planner check with both sides of the bed open. Frames: twin 42 × 79 in, full 58 × 79 in, queen 64 × 84 in, king 80 × 84 in (mattress sizes from Amerisleep plus about 4 in). A 32 × 18 in dresser and a 48 × 24 in desk; 24 in paths (the planner's Standard setting) unless the column says 30 in (Roomy). A 30 in door near a corner of one long wall, a 48 in window on the other.
The secondary-bedroom size and the average land right on a line. Of every whole-foot room we ran, from 9 × 9 ft to 16 × 20 ft, the 10 × 12 ft secondary bedroom is the smallest that takes a queen, a dresser and a 48 in desk with 24 in paths, and the 11 × 12 ft average is the smallest that does it with a king. One foot narrower, a 10 × 12 can't do it with a king. Centered on a 10 ft wall, the king leaves 120 − 80 = 40 in, or 20 in a side, under the 24 in path; on a 12 ft wall it leaves 120 − 1 − 84 = 35 in past its foot, short of a 24 in-deep desk plus 30 in for its chair.
At the small end, a 10 × 10 ft takes a queen only on its own. Add a dresser and both sides stay open only with a twin. At the roomy end, a 10 × 15 ft, the top of Angi's guest-room range, holds a king, a desk and a dresser even with 30 in paths: it's the smallest whole-foot room in our runs that does.
Same square feet, different furniture
Two rooms with almost the same floor area can hold very different furniture, because the bed, the paths and the desk chair have to line up along real walls. Here is the biggest bed that takes a dresser and a desk in two pairs of near-equal rooms.
| Room (feet) | Sq ft | Bed + dresser + desk, 24 in paths | Same, 30 in paths |
|---|---|---|---|
| 10 × 12 | 120 | Queen | Full |
| 11 × 11 | 121 | Twin | None |
| 10 × 14 | 140 | King | Queen |
| 12 × 12 | 144 | King | Full |
Biggest bed that passes every bedroom layout planner check with a 32 × 18 in dresser and a 48 × 24 in desk, both sides of the bed open. Same door, window and frames as the table above.
An 11 × 11 has one square foot more than a 10 × 12 but takes a twin, not a queen. The length is what runs out. Lined up from the headboard wall, a queen (84 in long), the 30 in desk-chair space and a 24 in-deep desk need 1 + 84 + 30 + 24 + 1 = 140 in, counting the 1 in the planner leaves off each wall. A 10 × 12 has 144 in; an 11 × 11 has 132 in. Across the room doesn't work either: a desk beside a queen needs 1 + 24 + 30 + 64 + 24 = 143 in. A twin is 22 in narrower, so the same line comes to 121 in, and it fits.
At 30 in paths, a long room beats a square one. The desk chair then needs 36 in, so the lined-up queen needs 1 + 84 + 36 + 24 + 1 = 146 in, 2 in more than a 12 × 12 has, and the answer drops to a full, whose frame is 5 in shorter. A 10 × 14 has 4 sq ft less but puts the queen's headboard on a 14 ft wall, with 120 − 1 − 84 = 35 in past its foot, and the desk and dresser on the short wall beside it: 42 in on one side of the bed and 37 in on the other.
3 bedroom sizes, drawn by the bedroom layout planner
The small end of the range, the secondary bedroom and the average, each with the planner's first-pick layout at 24 in paths. In the plans, apricot hatching is space that stays clear, the dashed arc is the door swing and the pale bar on the right wall is the window. The grid is 1 foot.
Layout A: 10 × 10, a queen on its own
Bed only
Here the headboard goes on the window wall; the queen also fits against either wall without the door or window, set a few inches off-center to clear the door's swing, with 32 in and 24 in beside it. Centered on the window wall, the queen leaves 120 − 64 = 56 in, or 28 in on each side, and 120 − 1 − 84 = 35 in past its foot. Add the 32 in dresser and nothing passes; the planner suggests a twin, dropping the dresser, or giving up one side of the bed.
Best for: a guest room, or a couple who keeps clothes in a closet. 28 in beside the bed takes a nightstand up to 25 in wide with 3 in to spare.
The trade-off: the headboard sits under the window, and a dresser fits only if one side of the bed goes against a wall.
Layout B: 10 × 12, a queen, desk and dresser
All checks pass
The queen goes on a 10 ft wall with 28 in on each side; the desk and dresser share the far wall. Lengthwise that leaves 144 − 1 − 84 − 24 − 1 = 34 in to pull out the desk chair (30 in needed) and 144 − 1 − 84 − 18 − 1 = 40 in in front of the dresser (34 in needed). The planner finds three layouts.
Best for: a secondary bedroom used for sleep and work, with 28 in sides for nightstands up to 25 in wide.
The trade-off: the 34 in strip past the foot of the bed is also the desk chair's space. The planner allows it, noting that the two are assumed to be used at different times.
Layout C: 11 × 12, a king, desk and dresser
All checks pass
The extra foot of width is what a king needs: centered on the 11 ft wall it leaves 132 − 80 = 52 in, or 26 in a side. The desk chair gets 34 in and the dresser 40 in, the same as Layout B, because both rooms are 12 ft long. The planner's other layout just swaps the desk and dresser.
Best for: the average bedroom with a king. 26 in sides take nightstands up to 23 in wide, at the narrow end of Wayfair's 21 to 28 in.
The trade-off: it's the tightest of the three: 26 in beside a king, 2 in over the 24 in path.
The numbers we checked
These are the numbers behind every table and plan on this page.
Clearances are the bedroom layout planner's Standard setting (Houzz for paths, House Plans Helper for the desk chair); bed frames are Amerisleep's mattress sizes plus about 4 in; nightstand sizes are Wayfair's; the minimum is the International Residential Code's; room sizes are HomeGuide's and Angi's.
- Wall to wall both ways, at floor level, in two places along each wall.
- Where the door is, how wide it is and which way it swings.
- The window: where it starts, how wide it is and the sill height.
- Your bed frame's outside size, not the mattress, and how deep the dresser is with a drawer pulled out.
More measured plans by room size: 10×10, 10×11, 10×12, 11×11, 11×12 and 12×12 bedroom layouts, or all of them in the bedroom layout ideas. Shopping for the bed and dresser? Standard furniture sizes lists them with sources, and what size rug for a queen bed covers the rug.
Questions
How big is the average bedroom?
About 132 square feet, or 11 × 12 ft, in HomeGuide's and Angi's guides. With 24 in paths, that's room for a king bed, a 48 in desk and a dresser with both sides of the bed open: the bedroom layout planner finds two layouts.
What is a standard bedroom size?
HomeGuide calls 10 × 12 ft (120 sq ft) the standard secondary bedroom, and Angi puts secondary bedrooms at about 120 sq ft. A 10 × 12 takes a queen, a 48 in desk and a dresser with both sides of the bed open, in three layouts.
How big is a normal bedroom in feet?
Angi gives 10 × 10 ft to 14 × 16 ft as the common range, with 11 × 12 ft the average. Kids' rooms run smaller, 8 × 10 ft to 10 × 10 ft in HomeGuide's guide.
How big should a bedroom be?
Big enough for your bed with 24 in beside it and past its foot. Of the whole-foot rooms we ran, the smallest that also take a dresser and a 48 in desk are 10 × 12 ft for a queen and 11 × 12 ft for a king. With roomier 30 in paths, they're 10 × 14 ft and 10 × 15 ft.
What is the minimum size for a bedroom?
The International Residential Code (section R304) requires a habitable room to have at least 70 square feet and to be at least 7 ft in every direction, so a 7 × 10 ft room just meets both.
What is the average master bedroom size?
14 × 16 ft, or 224 square feet, in both HomeGuide's and Angi's guides; Angi gives 200–400 sq ft for primary bedrooms and HomeGuide 200–350 sq ft in average-size homes. In the National Association of Home Builders' 2018 survey, the typical new home's master bedroom was 312 sq ft.
Sources
- Average Bedroom Size by Type (HomeGuide): average 132 sq ft (11 × 12 ft); secondary 10 × 12 ft; guest, kids' and master sizes
- Average Bedroom Size (Angi): average 132 sq ft (11 × 12 ft); 10 × 10 ft to 14 × 16 ft common; guest 10 × 12 ft to 10 × 15 ft; primary 224 sq ft, 200–400
- Minimum Dimensions in the IRC (Fine Homebuilding): 70 sq ft and 7 ft minimums (IRC R304)
- Spaces in New Homes (2019) (National Association of Home Builders): 312 sq ft master bedroom in the typical new home
- How to Get Your Furniture Arrangement Right (Houzz): 24 in minor paths
- Desk dimensions (House Plans Helper): desk chair clearance
- Mattress sizes and dimensions (Amerisleep): mattress sizes behind the bed frames
- Nightstand Dimensions (Wayfair): nightstands 21 to 28 in wide, 3 to 6 in from the bed