What Does Beam Mean on a Boat? - ANSWERED

By Matt Claiborne

A boat’s beam is the widest point of the boat

It’s an important measurement to know, just like the length of your boat is vital to know.

How to Determine a Boat's Beam

The easiest way to determine your boat’s beam is to refer to the boat’s documentation.

You can also measure the boat's beam manually.

How to Measure a Boat's Beam

First, mark the boat’s centerline from bow to stern.  Next, find the widest point of your boat and measure it, making sure that the measuring tape is perpendicular to the centerline.