This calculator uses the following formulas:
No Board = (Windows * 1/3) + (Doors * 1/4) + (Fireplaces * 1/2)
4'x8' Boards = (Perimeter / 4 - No Board) * Error Factor
Joint Compound = (Boards * 32 / 200) * Error Factor
Rolls of Tape = 40 * (Boards * 32 / 100) * Error Factor
Nails = 5.25 * (Boards * 32 / 1000) * Error Factor
Screws = 3 * (Boards * 32 / 1000) * Error Factor
Adhesive Caulk = 8 * (Boards * 32 / 1000) * Error Factor
This calculator assumes that the walls are less then eight feet tall. This should be used as a planning guide only and all numbers should be double checked by yourself for accuracy.