1. A computer implemented method for dimensioning a three dimensional (3D) item, the method comprising the steps of: mapping a field of view (FOV) over three spatial dimensions, each of the three spatial dimensions oriented orthogonally in relation to each of the others and graduated according to a linear scale; scanning the 3D item relative to the mapped FOV; identifying each of a plurality of two dimensional (2D) surfaces of the scanned 3D item; measuring a dimension of each of the identified 2D surfaces of the scanned 3D item; and rendering a perspective corrected representation of the measured dimension, in real time or near real time, with respect to the measuring the dimension step, onto each of the identified 2D surfaces of the scanned 3D item.