[Sidenote: Size of Brick]
The dimensions of the standard size face brick adopted by the
American Face Brick Association are 8" × 2-1/4" × 3-3/4"; but
sometimes, due to special conditions in the clay or the kiln burn,
these brick may slightly vary from the dimensions given. Besides,
there are other sizes of brick used, such as pavers, Romans, etc.,
so that the contractor should always ascertain the exact size
of the brick specified, whether standard size or not, and take
into consideration the width of mortar joint desired, in order to
calculate more accurately the number of bricks required for a given
wall area.
The following table gives the number of standard size brick per
square foot of wall surface, 4 inches or one brick thick, estimated
for different widths of mortar joint up to 3/4-inch: