ANSI/AWI 1236-2022 - Countertops

5.3.1 Exposed

a) All visible surfaces of an installed countertop

b) The exposed underside surface, greater than 1067 mm [42”] above the finished floor.

5.3.2 Concealed

a) The underside of countertops that are 1067 mm [42”] or less above the finished floor.

b) All non-visible surfaces attached to and/or covered by another surface.

c) All non-visible blocking, spacers, etc., used for attachment.