I used to do this as a profession.
Measure exactly, it matters.
and if your unsure of the math....
Give the exact measurements to the order taker at the redimix company.
Don't forget to tell him that there are no forms except at the top rim.
He will correct for the roughness.
If your driving by a redimix plant, stop in and ask for the little plastic
slide rule type calculators they usually give a way as freebees.
I still have mine.
(but I'm so old that they may NOT be giving freebees away anymore)
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Computer and car salesmen differ in that the latter know when they are lying.
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Bill H. in Chicagoland
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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