For wide ventilators, how many holes and what diameter should they have?

For wide ventilators on dry vans, the standard configuration is crucial to ensure proper air circulation and ventilation within the container. The correct specification is that wide ventilators should feature a total of 27 holes, each with a diameter of 10mm. This design is specifically intended to balance the need for adequate airflow while maintaining structural integrity and minimizing potential points of failure.

In the context of dry van specifications, proper ventilation plays a significant role in preventing moisture build-up, which can lead to mold and deterioration of cargo. The choice of 27 holes at a 10mm diameter is there to optimize the passage of air without compromising the container's strength, which is vital for the unit's overall performance and safety in transit.

Other configurations presented do not meet these specified requirements, either exceeding the number of holes or varying in diameter, which can lead to inefficiencies in ventilation or structural issues.