Im having my hull blasted nxt week. Any one know under water sqft ? Need to order some Interlux soon. THX
Doubt there's any way to measure it, including up to your water line, your prop pockets, the spots under the jack stands you'll need to save paint for, plus recover for any daylight spots found as the paint dries, without a major computer program. Just multiply the LWL by the beam and you should come close enough. BTW, if you're talking about a DIY project most yards won't permit it anymore because of pesticide regulations. Be careful with what blasts off and what you drip. Some municipalities can be fairly strict.
Blasting hull with a crushed glass procedure. No soda dust. Our marina will let us bottom coat. Mobile Media Blasting of MN
Pettit paints has a calculator on their website that is fairly accurate for estimating bottom paint volume.