Where do I edit my home square footage? I'm getting an error stating that "your office sq footage must be less than your total home size."

When you are working on your business income, you will find the Home Office section which is where you edit the office square feet.

1. Sign into your TurboTax account
2. Search (upper right) schedule c > Click the Jump to... Link > Edit next to your business
3. Scroll to Business Expenses > Home Office Expense > Start/Update/Revisit
4. Continue through the screens until you reach the area to enter your office and entire home square feet
5. See the images below. 
6. Instructions for both TurboTax Online and TurboTax CD/Download.
7. Additional details about the Home Office Deduction.

Oh my goodness, I feel like a big dummy. That's what I get for doing taxes while listening to a podcast. Thank you so much for your help!