Rock density and porosity are fundamental physical properties used to characterise rock materials for geotechnical investigation, mining engineering, and infrastructure design. Western Geotechnical Laboratory Services (WGLS) provides accredited rock Density and Porosity testing using the Caliper Method (AS 4133.2.1.1), a precise dimensional measurement technique suited to intact rock core samples. This test delivers bulk density and porosity values that inform rock mass classification, foundation design, slope stability assessment, and resource estimation — providing geotechnical engineers and mining professionals with reliable baseline data from our NATA-accredited laboratory in Welshpool, Perth.