What is the maximum diameter of a small handline?

The concept of a small handline is typically defined within the firefighting community to categorize hose sizes that are suitable for certain types of firefighting operations. The most widely accepted maximum diameter for a small handline is 1¾" (45mm). This size is favored because it strikes a balance between handling ease and water delivery capability, making it effective for a variety of fire suppression situations.

Small handlines are designed to be manageable for a single firefighter or a small crew, allowing for greater mobility and quicker deployment at the scene of a fire. The choice of a diameter beyond this range, such as 2" or larger, transitions the hose into the category of larger attack lines, which may require additional manpower and specialized techniques to manage effectively.

Thus, while bigger hose sizes may offer greater water flow, they also demand more equipment and personnel, making them less suitable for small handline operations. Therefore, recognizing 1¾" as the maximum diameter for a small handline is crucial for effective firefighting strategy and logistics.