Deductions & credits

Thank you, but my question is about how to put that into turbo tax. I'm aware of how to write it of on my schedule C. We can also do a simplified deduction at a rate of $5×the square footage of the space up to 300 ft², but there doesn't seem to be a space to input that information into turbo tax. The questions it asks are specifically about home office. I haven't been able to find input options about inventory storage spaces.