A body-centred cubic lattice has been used to represent the packing in a model of a trickle bed. Liquid distribution has been simulated by a percolation process in this lattice. The liquid flow distribution is governed by a single parameter p which describes the static properties of the packing independent of the liquid load. Simulations of different packings and flow rates describe the experimental results in the low-interaction regime satisfactorily. The simulation results may also be used for the successful estimation of the experimentally determined dynamic liquid hold-up.