Height Restriction Post Mount Sign - Dia. 629.2A R2/RA2 (Face Only)This permanent road sign is used to prohibit vehicles exceeding the stated height from a route. This may be because there is a low non arched bridge or other overhead obstruction that would impact a vehicle exceeding the height. This sign shows measurements in both metric and imperial units. The example above shows the appropriate formats that are accepted. Of course, you will need to enter measurements as they apply to the circumstances at the