Terrain Category 2
Overview
Terrain Category 2 (TC 2) describes open terrain with well-scattered obstructions. It’s commonly applied to rural or semi-developed areas where objects are spaced far enough apart not to significantly block wind flow.
Why This Is Important
- Used in wind classification for accurate structural engineering.
- Helps determine wind loads on buildings in lightly developed areas.
- Ensures safety and compliance with design standards.
Characteristics
- Obstructions are generally 1.5 to 5 meters in height.
- No more than two obstructions per hectare.
Examples
- Farmland
- Cleared subdivisions with isolated trees and uncut grass
- Crops less than 600 mm high
Tips, Best Practices & Troubleshooting
- Use aerial or site imagery to confirm spacing and size of obstructions.
- If unsure between TC 2 and 2.5, consult engineering support.
- Accurate terrain classification helps avoid over/under-engineering.
Related Resources
Request Engineering (Site Check)
Review & Updates
Version History:
- v1.0 – 18 March 2019
- v2.0 – 31 July 2025
Article Information
- Category: Engineering & Site Specifications
- Target Audience: Estimators, Sales Coordinators, Franchise Users
- Business Owner: Engineering and Product Support
- Version: v2.0
- Last Reviewed: 31 July 2025