Neither is documented at wiki but meaning seems clear and synonymous. surface=bricks is used 1997 times, surface=brick 541 times.
surface=bricks is also consistent with plural form of popular countable surface values - surface=paving_stones and surface=concrete:plates Is there any good reason to avoid changing existing surface=brick to surface=bricks? _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
