CNC LENGTH
The Honest Hull: How CNC Marine Measures Boat Length (and Why It’s Different)

If you’ve been comparing boats or looking at different kits, you’ve probably noticed a lot of variation when it comes to size. One brand’s 7.2m might feel smaller than another’s 6.5m, so what’s going on?

Here’s something most people don’t realise:

Not all boat brands measure their hulls the same way.

Some use what’s called Length Overall (LOA) a number that includes extras like:

  • Bowsprits
  • Engine pods or motor setbacks
  • Swim platforms
  • Other bolt-on accessories

These additions can make the length on paper look much bigger than the actual usable hull. It might sound good in a brochure, but it doesn’t always reflect the true size or performance of the boat.

How CNC Marine Measures Boats

At CNC Marine, we do things a little differently — and more honestly.

We use CNC Length, which is:

✅ The true length of the designed hull plates

✅ Measured from the base of the transom to where the hull sides meet at the bow

❌ Does not include bolt-ons, accessories, or overhangs

That means what you see is what you get, a precise, fabrication-ready hull length that reflects how the boat actually performs on the water.

Why This Matters

If you’re comparing boat kits or factory boats based on length alone, it’s important to know what’s actually being measured.

For example, a boat advertised as 7.2m LOA might have the same usable hull length as a CNC Marine 6500CC, they’ve just included the engine pod and bowsprit to bump the number up.

Bottom line:

Make sure you’re comparing apples with apples.

When you go off CNC Length, you’re getting a true understanding of the hull design, the internal space, and how that boat will ride.

Still Confused About Boat Sizes?

We get it, boat specs can be tricky. If you’re not sure which hull size suits your build or how our kits compare, drop us a line. We’re always happy to walk you through it.

Explore our kit range or get in touch with the team to chat about your build.