what is the size of a typical brick?
Standard Brick Dimensions. The standard brick sizes depend on the country where it is made. In the United Kingdom, the size used is 64 mm or 2.5 in. In some cases the brick is less than 2.5 inches deep. In the United States, the standard size is 8 Ã 4 Ã 2.25 inches (203 Ã 102 Ã 57 mm). In Australia the average size is 9 x 4.33 x 3 inches (230 x 110 x 76 mm). The size in South Africa is 8.75 x 4 x 3 inches (222 x 106 x 73 mm).