1. What is Square Footage?

Square footage is a measurement of area expressed in square feet. It is commonly used in real estate, construction, and interior design to quantify the size of a space.

2. How Does the Calculator Work?

The calculator uses the square footage formula:

Where:

• \( SF \) — Square footage (square feet)
• \( L \) — Length (feet)
• \( W \) — Width (feet)

Explanation: The area of a rectangle is calculated by multiplying its length by its width.

3. Importance of Square Footage Calculation

Details: Accurate square footage calculation is essential for determining material quantities, property valuation, space planning, and compliance with building codes.

4. Using the Calculator

Tips: Enter length and width in feet. All values must be valid positive numbers. The calculator will automatically compute the square footage.

5. Frequently Asked Questions (FAQ)

Q1: Can I use different units of measurement?
A: This calculator uses feet as the unit of measurement. If you have measurements in other units, convert them to feet first.

Q2: How do I calculate square footage for irregular shapes?
A: For irregular shapes, divide the area into regular shapes (rectangles, triangles), calculate each area separately, then sum them up.

Q3: Does square footage include wall thickness?
A: Typically, interior measurements are taken from inside wall to inside wall. Exterior measurements include wall thickness.

Q4: How accurate should my measurements be?
A: For most applications, measurements to the nearest 1/4 foot (3 inches) are sufficient. For precise work, measure to the nearest inch.

Q5: What's the difference between square feet and linear feet?
A: Square feet measure area (length × width), while linear feet measure length in a straight line.