Summary: total deducted before transference Thus this eventual total in the 1 1 2 B column is that of all the brickwork Reduced to a standard thickness of 1 1 2 B An example is given in Fig 38 Fig 38 Follow the reduced brickwork with the other super items of common brickwork such as Half brick partitions
Image Dimensions: 477 x 368
Image originally found here.