Hull square footage

[rudy]

I am about to paint the bottom of my Commander.  What is the underwater square footage of a Commander hull?  This would help me in ordering the right amount of paint.

[Tony G]

Rudy,

I may be off on this one but I seem to recall figuring around 100-120.  I always calculate long on paint because you never get 100% efficiency rolling or brushing.  This goes way back in my memory which isn't that good so somebody check my numbers:o.

[Westgate]

Wetted hull area= l.o.a x max beam x 0.85.  

Used this formula to calculate my barrier coat needs.  Worked out with about 1/2 pint to spare over 5 coats.  Not bad!


Andrew

[c_amos]

One gallon was just about right for Faith, IIRC 2 coats, with enough extra for a third coat on the bottom of the keel and misc areas with higher erosion.

[mbd]

Ditto. 1 gallon Pettit ablative paint leaves just a smidge left over...