Square Footage Formula:
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Square footage calculation measures the total area of a house by summing the areas of all individual rooms. It's a fundamental measurement used in real estate, construction, and home improvement projects to determine the usable space within a property.
The calculator uses the simple area formula:
For multiple rooms, the total square footage is calculated as:
Where:
Details: Accurate square footage measurement is essential for property valuation, construction planning, material estimation, furniture placement, and compliance with building codes and regulations.
Tips: Measure each room's length and width in feet. For irregularly shaped rooms, break them down into rectangular sections. Add multiple rooms using the "Add Another Room" button. All measurements must be positive values.
Q1: Should I include closets and hallways?
A: Yes, all living spaces should be included. Measure closets and hallways as separate rectangular areas and add them to the total.
Q2: How do I measure irregularly shaped rooms?
A: Divide irregular rooms into smaller rectangles, calculate each area separately, then sum them together.
Q3: Should I measure from inside or outside walls?
A: For interior square footage, measure from the inside of exterior walls. For construction purposes, exterior measurements may be used.
Q4: Are there standard room sizes?
A: While there are common dimensions, each room should be measured individually for accuracy as sizes can vary significantly.
Q5: How accurate should my measurements be?
A: For most purposes, measurements to the nearest inch (0.01 feet) are sufficient. For precise calculations, measure to the nearest 1/4 inch.