It's late November 2025. You're pricing a commercial renovation project breaking ground in March 2026. You pull up your estimating spreadsheet, the same one you've used all year and start plugging in costs. But here's the dangerous question: Are those numbers still accurate? If you're bidding 2026 projects using mid-2025 cost data, you're gambling with your margins. Material prices have shifted. Labor markets have changed. Hidden costs like insurance and fuel have crept upwar