# Tie Grading Guide

> Tie Grading Guide (iPhone/iPad app by Western Wood Preservers Institute.)

- Source: https://appshunter.io/ios/app/tie-grading-guide/id1152624753 (this page in markdown: same URL + `.md`)
- Developer: [Western Wood Preservers Institute](https://appshunter.io/developer/656031899)
- Category: Education, Business
- Price: Free
- Age rating: 12+
- Requires: iOS 13.0 · 36 MB
- Languages: American English
- Released: 2016-09-17
- Data updated: 2025-12-17
- User reviews in markdown: https://appshunter.io/ios/app/tie-grading-guide/id1152624753/reviews.md

## What is Tie Grading Guide?

The RTA Tie Grading Guide offers detailed information and training on specifications, grades and limiting defects for preservative treated wood rail ties.


## Version history (last 5 releases)

### 1.0.8 — 2025-12-16

Stability improvements.

### 1.0.7 — 2025-10-12

Minor bug fixes

### 1.0.6 — 2024-11-19

Minor bug fixes

### 1.0.5 — 2023-05-18

Minor bug fixes

### 1.0.4 — 2022-03-14

Minor bug fixes

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## More apps by Western Wood Preservers Institute

- [Treated Wood Guide](https://appshunter.io/ios/app/treated-wood-guide/id656031896)
- [Wood Pole Guide](https://appshunter.io/ios/app/wood-pole-guide/id853656559)

All apps by Western Wood Preservers Institute: https://appshunter.io/developer/656031899

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-12-17.*