Rectangular Tank Design

[oilcivil]

I'm trying to design a steel rectangular tank for water. I understand there is a spreadsheet out there on a previous post that is based on a paper by Kanti Mahajan. Does anyone have the spreadsheet??
I've can do some calcs like hydrostatic pressure on the bottom and sides. I can calc the thickness for the tank floor based on this. But I need to do comprehensive calcs to optimize.

Thanks in advance

 

[IFRs]

There be books out there on rectangular bins. Try searchinf for rectangular bin design.

 

[withak36301]

Pressure Vessel Handbook by Eugene Megysey, 14th edition has calculations for rectangular tanks. Starts on p. 214.