This document reports on normalized plantar pressure measurements under different loading conditions and surfaces. It presents: - Normalized plantar pressure deviations for different foot regions when standing on a normal surface and pressure mat under various loads (0-20kg). - Empirical discomfort measures from the pressure mat closely follow theoretical measures, indicating a good match between measured and predicted discomfort. - Plantar pressure data is presented ordered by both foot region and direction, then by load carried and surface type. Comparisons are made between standing on a normal surface versus pressure mat.