U-Bracket STL File Design

I need a professional CAD designer to create a precise STL file for a U bracket. The bracket will be used for structural support, so it needs to be robust and accurately designed. I have detailed dimensions for the U bracket, all of which are in Imperial units (inches, feet).

Ideal Skills and Experience:
- Proficiency in CAD software, particularly for STL file creation
- Experience with designing structural components
- Ability to work with detailed specifications
- Strong understanding of 3D modeling and design principles