Tie Grading Guide
Education
Free · Designed for iPad
The RTA Tie Grading Guide offers detailed information and training on specifications, grades and limiting defects for preservative treated wood rail ties.
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Minor bug fixes
The developer, Western Wood Preservers Institute, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
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Information
- Seller
- Western Wood Preservers Institute
- Size
- 38.2 MB
- Category
- Education
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Western Wood Preservers Institute