How Do You Figure Concrete Block For Foundation?

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Project managers who must estimate concrete block for large construction projects hire trained estimators to do the job. These estimators use specific tables along with specialized computer programs to obtain accurate results. Fortunately for the homeowner who needs to estimate concrete block for a smaller project such as the foundation of a house, a simple rule of thumb is more than adequate when using standard concrete block and is accurate and based on many years of practical experience. Add the wall lengths to determine the total linear length. A standard block is 16 inches long, which means that one foot equals three-quarters of a block. Multiply the total linear length (in feet) by 0.75 to obtain the total number of blocks needed for one course. Calculate the number of courses in your foundation. A course of standard concrete block, including the mortar joints, is eight inches high. Divide the height of the foundation (in inches) by eight to figure out how many courses you need. ... more
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