Construction Cost Estimation Spreadsheet

I need a detailed estimating spreadsheet for construction costs. The spreadsheet should cover materials, labor, and equipment, with a detailed itemization for each category.

Requirements:
- User-friendly interface
- Ability to input and update costs
- Categories for materials, labor, and equipment
- Detailed itemization for each category

Ideal Skills and Experience:
- Experience with construction cost estimation
- Proficiency in spreadsheet software (Excel, Google Sheets, etc.)
- Attention to detail and accuracy