What is the maximum height allowed for a vehicle, including its load, as per state law?

In Texas, the maximum height allowed for a vehicle, including its load, is indeed 14 feet. This regulation is in place to ensure safety on roadways and to prevent vehicles from coming into contact with overhead structures such as bridges, traffic lights, and power lines.

The 14-foot limit reflects a standard established by state law, recognizing both the need for maneuverability and the clearance required for safe transit on public roads. Vehicles exceeding this height typically require special permits for travel, as they might pose risks to infrastructure and safety.

While the other options suggest lower limits, they do not align with the state's established regulations, which are rooted in considerations of traffic safety and infrastructure compatibility. Thus, the choice of 14 feet correctly reflects the legal standard set forth by Texas law.