Way to measure interior space (volume) on a boat

[gcaskew]

I'm looking more at interior volume rather than just how many feet a boat is. With the changes in the width of sterns now a much shorter boat may have as much living space as an older but longer boat.

Does anyone know of a site that would measure this for comparisons?

Thanks

[a64pilot]

Even if you get a cu ft measurement, it wont mean as much as you might think.
Some boats use space much more efficiently than others, have much better storage etc.
Some seem to be more about interior design from an appearance perspective and have lots of un-usable space

[Cheechako]

The waterline length gets you almost there. Combine that with beam and you are close enough. Take a look at the interior volume of like an Allmand Sail 31. Maybe not great boats but very nicely done interior setup.

[Hydra]

Another measurement of volume is tonnage (not displacement): one ton equals 100 cubic feet (2.83 cubic meters) of internal volume.

My boat's tonnage is 8 tons but her displacement is about 3.5 (metric) tonnes.

Alain

[TeddyDiver]

Originally Posted by gcaskew

I'm looking more at interior volume rather than just how many feet a boat is. With the changes in the width of sterns now a much shorter boat may have as much living space as an older but longer boat.

Does anyone know of a site that would measure this for comparisons?

Thanks

How about a book instead of a site?
Seriously, in a good book you will find good solutions for the quest, explained with their advantages and drawbacks, how to use them and what you can do with the results.
BR Teddy

[Cheechako]

Due to the many variables, there is no set rule. You would have to look at the line drawings with the cross sections and use calculus.
Not sure if Teddy is talking about registration or document tonnage or what. But Doc tonnage is just a very wild rough estimate based on rectangular volume.

[Adventurebound]

Fill the interior of the boat with water. Pump it out and measure it's volume

[haiqu]

Originally Posted by Adventurebound

Fill the interior of the boat with water. Pump it out and measure it's volume

Damn, that's what I was going to suggest. SNAP!

[TeddyDiver]

Originally Posted by Cheechako

Due to the many variables, there is no set rule. You would have to look at the line drawings with the cross sections and use calculus.
Not sure if Teddy is talking about registration or document tonnage or what. But Doc tonnage is just a very wild rough estimate based on rectangular volume.

I was talking about the good old Skene's. Lines and drawings

[Ryan H]

Originally Posted by Adventurebound

Fill the interior of the boat with water. Pump it out and measure it's volume

nah, water is heavy. Use ping pong balls. That way you'll be able to refloat yourself if you ever sink.

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