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Differences in weathering response characteristics of fine‐ and coarse‐grained Stanton Moor sandstone samples were assessed in a laboratory weathering simulation experiment using a variable combination of salt weathering and freeze/thaw cycles. Preliminary analysis of permeability characteristics identified similar mean values for each type of Stanton sandstone but significant differences in the range of values between the two sample sets, with coarse‐grained samples of Stanton Moor sandstone displaying a restricted range of values in comparison to fine‐grained samples which showed much greater within‐block variation. Data indicated that the greater the range in initial permeability values, the greater the potential for salt and moisture ingress and retention and hence eventual disruption of the fabric of the stone. Experimental data also identified different stages in decay sequences, with significant …