No I don't. I know others who have made fortunes in that arena. As of now I don't do much painting anymore. In reality I estimated these last couple of jobs for a friend of mine that is a painting contractor. He is just getting started. Painting is what I did all of my life but now I would like to stay more on the side of this software rather than the high pressure of dealing with general contractors on jobsites.
The only website I have is
http://xtmatix.com.
The business I was involved in for much of the last 35 years was a family owned business started by my dad in 1960 and finally closed down just last year. We did commercial painting. I have worked in some of the chemical plants and refineries and technically that is considered industrial painting but it is nothing like these guys do.
Even estimating industrial paints is different. This is how industrial painters estimate how much paint they use. I am going to have to fudge some of these numbers but you will still understand.
One number I will fudge is 1604. I think that is the number but I don't remember offhand right now. That is the number of square feet that 1 gallon of paint (100% solids) will cover 1 mil (dft) on a smooth surface.
Most times paints are only about 50% solids so 1 gallon of paint at 50% solids will cover 802 SF at 1 mil thick.
BY the time you consider about 50% solids and a mil thickness of about 2.5 then the coverage comes down close to 300 SF per gallon. Actually it is 320 SF per gallon. Those guys are well versed on putting paint on at a certain mil thickness.
This same formula is true for all paint coverages. 1604 X percent solids divided by the mils thick. Look on the back of a can of paint and get the percent solids and the recommended thickness. It will come out to about 300 SF per gallon. I am going from memory from many years ago but I believe this is the way coverage is figured. I used to even have this in my estimating software. It was a version for industrial painters. I guess if I ever see a need for this again it wouldn't be too hard adding that formula to the program again.
Industrial painters use a whole different technique and they approach estimating a job a lot different than painters in commercial and residential do. It is really interesting to understand how they do it.