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Usable Office Area Calculator

Remove a user-entered circulation and non-work area allowance from gross floor area.

Inputs

Range: at least 0 sq ft

Enter the measured gross area in square feet. Zero is allowed; default is an example only.

Range: 0–1 0–1

Enter the share of gross area excluded from this planning estimate, from 0 to 1. For example, 0.25 means 25%; this is not a code-prescribed factor.

Result

Estimated remaining area
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Calculation details
Excluded area estimate
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Estimated remaining area
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Excluded area estimate
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Remaining area fraction
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Gross area used
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Excluded fraction used
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Calculation interpretation
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Basis and applicable limits
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