A standard for real estate agents, appraisers, assessors, insurance providers, builders, and architects. It's time for one language of square footage. Standardization will NEVER work without everyone using the same method. Take a look for yourself... New for 2024 with measuring stairs on both floors, rules for sloped ceilings, garages and GLA, and a 6.8" ceiling height rule. 2025 Update in process...