GSF / Net-to-Gross Calculator

Clients program in Net Assignable Square Feet (NASF)—the actual usable rooms. Buildings are priced and built in Gross Square Feet (GSF), which includes walls, mechanical chases, and circulation.

Typical Circulation Multipliers

• Office: ~1.20 to 1.30
• Higher Ed / Lab: ~1.45 to 1.55
• Hospital: ~1.60+

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