Average Bedroom Size 🛏️ Everything Homeowners Should Know

When designing, buying, or renovating a home, one of the most common questions people ask is: what is the average bedroom size? Whether you’re planning a master suite, a kid’s room, or a guest bedroom, knowing the standard measurements can save you headaches and help with furniture layout, resale value, and even building code compliance.

In this guide, we’ll break down the dimensions of average bedroom, compare different room types, and offer tips to maximize smaller spaces.

What Is the Average Bedroom Size?

The average size bedroom in the U.S. typically ranges between 120 and 150 square feet (about 10’ x 12’ to 12’ x 12’). However, the size can vary significantly depending on whether it’s a master, secondary, or small bedroom.

“The national building code doesn’t set a strict minimum beyond livability requirements, but most states and cities have their own codes.”

Average Bedroom Dimensions by Type

Bedroom Type	Average Dimensions (Feet)	Square Footage	Notes
Master Bedroom	14’ x 16’	224 sq. ft.	Often includes en-suite bathroom and walk-in closet
Secondary Bedroom	10’ x 12’	120 sq. ft.	Standard size for kids or guests
Small Bedroom	9’ x 10’	90 sq. ft.	Meets minimum size requirements in many states
Large Master Suite	16’ x 20’	320 sq. ft.	Popular in luxury homes

Why Bedroom Size Matters

1. Furniture Layout – A king-size bed requires at least 12 feet in width to allow walking space.

2. Storage – Larger rooms often include closets; smaller ones may need creative storage.

3. Resale Value – Homes with larger master bedrooms often sell faster.

If you’re planning a remodel, don’t miss our guide on standard medicine cabinet size to make sure your bathroom matches your bedroom proportions.

Minimum Legal Requirements

Most building codes require:

• A minimum of 70 sq. ft. for a bedroom.

• At least 7 ft. in one direction.

• An egress window for fire safety.

Check local codes before finalizing renovations. For help with compliance, see our post on egress window dimensions to understand window requirements.

Optimizing Small Bedrooms

Even if your bedroom falls under the average, you can make it feel larger:

• Use mirrors to reflect light.

• Choose light-colored walls.

• Opt for multi-functional furniture (beds with storage underneath).

• Limit clutter to open up floor space.

“A well-designed 90 sq. ft. room can feel more spacious than a poorly designed 150 sq. ft. room.”

Trends in Modern Homes

Modern houses and apartments often feature larger master bedrooms (14’ x 16’ or bigger). However, urban condos and tiny homes push the limits, sometimes reducing bedrooms to under 100 sq. ft.

This makes smart design even more important. If you’re building or renovating, our guide on garage addition ideas shows how to expand functional spaces in creative ways.

Conclusion

So, what is the average bedroom size? Most bedrooms in North America fall between 120–150 sq. ft., with master bedrooms averaging larger at 200+ sq. ft. The right size depends on your needs, but thoughtful design can make even the smallest spaces functional and beautiful. 🏡

FAQ

What is the average bedroom size? The average bedroom size is 120–150 sq. ft., with larger master bedrooms often exceeding 200 sq. ft.

What are the dimensions of average bedroom layouts? Most are 10’ x 12’ or 12’ x 12’, though masters can be 14’ x 16’ or bigger.

What is considered a small bedroom? A small bedroom is typically 9’ x 10’, about 90 sq. ft.

Is there a legal minimum bedroom size? Yes, most codes require at least 70 sq. ft. and an egress window.

Does average size bedroom affect home value? Yes, homes with larger master bedrooms tend to sell faster and at higher prices.