ABSTRACTBrick were made by the dry‐press process from two fire clays with varying grain size, moisture content, and forming pressure. The effect of de‐airing the mold box prior to compression was also studied. Glazed brick made in this investigation were compared with stiff‐mud glazed brick and the properties of the former were found to equal those of the stiff‐mud glazed brick when the forming variables were closely con