Square Foot Formula:
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Square footage is a measurement of area used in construction and real estate to describe the size of a building or space. It represents the total floor area within a structure's exterior walls.
The calculator uses the basic area formula:
Where:
Explanation: For rectangular spaces, simply multiply length by width. For irregular shapes, divide into rectangles, calculate each separately, then sum the areas.
Details: Accurate square footage calculations are essential for construction planning, material estimation, real estate valuation, and building code compliance.
Tips: Measure length and width in feet at the longest/widest points. For rooms with alcoves, measure each section separately. All values must be positive numbers.
Q1: How do you measure square footage for irregular rooms?
A: Divide the space into rectangular sections, calculate each separately, then add them together.
Q2: Does square footage include wall thickness?
A: Typically measured from interior wall surfaces (net area). Some standards include exterior walls (gross area).
Q3: How accurate should measurements be?
A: For construction estimates, measure to the nearest 1/4 inch. For real estate purposes, nearest foot is usually sufficient.
Q4: How is square footage different from living area?
A: Living area typically excludes unfinished spaces like basements and garages, while total square footage includes all enclosed space.
Q5: Why is square footage important in real estate?
A: It's a key factor in property valuation, price per square foot comparisons, and mortgage lending decisions.