Room Size Calculator

Living Rooms: The Heart of Your Home

Living rooms need enough space for seating, circulation, and entertainment.

• Small Living Room: 10' × 12' (120 sq ft) - Suitable for apartments
• Medium Living Room: 12' × 18' (216 sq ft) - Most common size
• Large Living Room: 15' × 20' (300 sq ft) - For formal entertaining
• Great Room: 20' × 24' (480 sq ft) - Open concept living

Bedrooms: Personal Sanctuary Sizing

• Master Bedroom: 12' × 16' minimum (192 sq ft) for king bed
• Guest Bedroom: 10' × 12' (120 sq ft) for queen bed
• Child's Bedroom: 8' × 10' minimum (80 sq ft) for single bed
• Walk-in Closet: 6' × 8' minimum for adequate storage

Kitchens: The Work Triangle

Kitchen size depends on layout style and cooking habits.

• Galley Kitchen: 7' × 12' for efficient workflow
• L-Shaped Kitchen: 10' × 10' minimum for corner layout
• U-Shaped Kitchen: 10' × 12' for maximum storage
• Island Kitchen: 12' × 16' minimum for island clearance

Home Offices: Productive Workspace Design

• Small Office: 6' × 8' for desk and storage
• Standard Office: 8' × 10' for desk, chair, and filing
• Executive Office: 10' × 12' for meeting area
• Shared Office: 12' × 14' for multiple workstations

Traffic Flow

Maintain 30-36 inches for main walkways and 24 inches for secondary paths. Avoid placing furniture where it blocks natural movement patterns.

Furniture Clearances

Leave 18 inches between coffee table and sofa, 24 inches to pull out dining chairs, and 36 inches in front of kitchen appliances for safe operation.

Proportional Relationships

Large rooms can handle oversized furniture, while small rooms need scaled-down pieces. Maintain visual balance between furniture size and room dimensions.

What is the ideal room size for different purposes?

Ideal room sizes vary by function: Living rooms need 12x18 ft minimum, master bedrooms 12x16 ft, guest bedrooms 10x12 ft, and home offices 8x10 ft minimum for comfortable functionality.

How do I measure room dimensions accurately?

Use a tape measure to measure wall to wall at the widest points. Account for built-ins, alcoves, and irregular shapes. Always measure twice to ensure accuracy.

What's the difference between usable and total square footage?

Total square footage includes the entire floor area, while usable space excludes areas taken up by furniture, walkways, and built-in features. Usable space is typically 60-70% of total area.