Marking 16 Zones and 32 Devta Pads on a House Plan with a Protractor
Place a protractor on the house plan aligned to North, adjusting for any tilt, and mark the 4 directions, the 4 sub-directions at 45 degrees and 8 further sub-directions at 22.5 degrees. For a house use the 81-pad layout, in which the 32 outer devtas each cover 11.25 degrees and N5, E5, S5 and W5 fall exactly on the cardinal points.
House plan, from the centre of the house