Roof Truss Calculation for Garden Shed

I'm looking for someone experienced in structural engineering to calculate roof trusses for a large, free-standing garden shed.

Requirements:
- Calculate trusses for a large, free-standing garden shed
- Shed features a nearly flat roof with a single slope
- Provide detailed structural analysis and diagrams

Ideal Skills & Experience:
- Structural engineering expertise
- Experience with roof truss calculation
- Knowledge of building codes and regulations