Consideration also had to be taken into account regarding the type of stone used for the pillars. Particular attention was given to using quality local materials. For instance, stone piers in Bath would have been treated quite differently from those of Derbyshire or Cornwall. In counties where buildings and walls were predominantly built of stone, the piers would be built of the local stone. Where a field had a stone wall enclosing it, it might well be that piers would be unnecessary and that a simple raising of the wall would provide an appropriate setting for the heraldic panels. Brick piers were built of a narrow brick, not machine-pressed brick, and excessive or elaborate mouldings were avoided.