`"start brick length" = ("Brick Length"["US Standard"]) /2 - "5/16"/2`

3.84375

This equation computes the length you must cut a brick to start a row, such that the head joint is centered over the center of the previous row.  The previous row started with a full brick, so you're trying to line-up the center of the first head joint on this present row with the center of the brick immediately below.

Inputs

The inputs to this equation are:

• std - Choice of standard brick
• joint - selected width of joint (between 1/4 inch and 3/4 inch)

See Also

• Brick Calculator
• Standard Brick Sizes -  the data set containing the dimension of standard bricks used around the world
• Starting cut brick length
• Number of bricks per row
• Number of bricks high
• Count of bricks in a wall
• Length of a brick in various brick standards
• Height of a brick in various brick standards
• Wall's brick or block count