The effect of parameters on surface roughness and DOC is obtained through main effect plot. Surface Roughness (Ra) values are measured at the wear region along cut direction. Dimensional analysis modelling for Ra is carried out to predict the model equation for Ra by Buckingham’s π –method. Comparison of model average Ra and experimental average Ra is carried out to predict the suitability of the model. | Modelling studies on surface roughness of laminated glass cut by abrasive water jet