What is a beam on a boat?

A boat's beam refers to its width at its widest point. It is a crucial dimension that significantly affects several aspects of the boat's performance, stability, and capacity.

• Stability: Generally, a wider beam provides greater initial stability, reducing the boat's tendency to roll. Conversely, a narrower beam can result in a boat that feels less stable at rest but might offer better performance in certain conditions.

• Capacity: A wider beam typically allows for more interior space, increasing the boat's capacity for passengers and cargo.

• Performance: Beam affects a boat's speed and maneuverability. A wider beam can increase drag, potentially reducing speed, while a narrower beam can improve speed but may compromise stability. The optimal beam is often a balance between these factors, depending on the intended use of the boat.

• Transport: A wider beam can make a boat more difficult and expensive to transport, particularly overland. This is an important consideration for boats that need to be trailered.