The present study aims to analyze the processes at play when wood is exposed to liquid water, focusing on transport on growth ring and cellular scales and using two imaging modalities: neutron radiography and X-ray tomography images (obtained respectively at Neutra SINQ and Tomcat SLS at PSI, Villigen, Switzerland). Neutron imaging is used to characterize liquid water transport at growth ring scale in the three directions of the wood (longitudinal, radial and tangential). Based on neutron measurements, we determine unsaturated permeability of spruce and pine as function of moisture content. X-ray tomography enables us to dynamically visualize the flow of liquid water at wood cellular level, showing involved structures and to identify concomitant deformations due to water adsorption. Documenting both transport and deformation can provide a path for insightful characterization and accurate quantification of water transport in wood. Based on measurements, we will determine unsaturated permeability of spruce and pine as function of moisture content. The multi-scale methodology - cellular to growth ring scales - ensures a characterization of the hygromechanical behavior of this hierarchical material.