---
type: guide
title: "What No Thru Traffic Signs Mean and How to Post One That Holds Up"
description: "What a no thru traffic sign means, who is allowed to post one, the letter height a driver can read at 25 mph, and whether aluminum or coroplast fits your road."
resource: https://www.4over4.com/guide/no-thru-traffic-signs-explained
tags: ["guide"]
generated:
  by: "process:4over4-mapp-build"
  at: 2026-09-16T23:13:27.757Z
timestamp: 2026-09-16T23:13:27.757Z
sources:
  - resource: https://www.4over4.com/guide/no-thru-traffic-signs-explained
    title: "What No Thru Traffic Signs Mean and How to Post One That Holds Up"
status: stable
---

# What No Thru Traffic Signs Mean and How to Post One That Holds Up

What a no thru traffic sign means, who is allowed to post one, the letter height a driver can read at 25 mph, and whether aluminum or coroplast fits your road.

See [all guide concepts](index.md).

- Page type: guide
- URL: https://www.4over4.com/guide/no-thru-traffic-signs-explained