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Disclaimer:   I am not a spokesperson for the US Coast Guard or ABYC. For an official interpretation of regulations or standards you must contact the US Coast Guard or other organization referenced..   More.....


Flotation standards for recreational boats.

I developed an E-course in Capacity and Flotation for Boat Builders, for Professional Boat Builder Magazine. They no longer offer it. I am offering it as an e-book. Go to Ike's Store to see more

For new boat builders, I have available spreadsheets that can do the calculations for you and can be used to keep a record of the results. Free!
Go to Ike's Store to see more

First a note about the reasons behind theflotation standards. Why is all this stuff necessary?

US Coast Guard Video on Safe Loading And Flotation testing (109 MB) This is a large file and is about 20 min long. It runs well on a highspeed broadband connection. It runs in Quick Time. You can download Quick Time here. If you do not have a highspeed connection you can download the video Download Windows Media Video Here. This file is virus free but you should run a virus scan when you download files. This may be copied and distributed free. May not be sold.  Turn on the sound.


Watch a Power Point Presentation on Flotation. (5.3 MB You must have Microsoft Power Point to view this.)

Another excellent Power Point Presentation on flotation is at;
This is from Richard Akers at Ship Motion Associates and was presented at IBEX in 2004.

Select from the following list:

Level Flotation : Mono-hulled boats under 20 feet in length, with outboards greater than 2 HP.

Modified Level Flotation : Mono-hulled boats under 20 feet in length, with 2 HP or less, or manually propelled.

Basic Flotation : Mono-hull inboard motorboats under 20 feet in length.

Flotation Testing


Back to Safe Loading Next to Level Flotation

Revised 01/13/2011 2011 All rights reserved


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