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Construction Math for Building Materials : How to Calculate Area in Square Yards

Construction Math for Building Materials : How to Calculate Area in Square Yards


Hi, this is Jon on behalf of Expert Village.
In this video clip we’ll be calculating square yards. Carpeting is typically calculated in
square yards this room we’re going to be putting new carpet so we need to figure out how many
square yards of carpet we need. First we need to get a length and a width measurement, the
width here is about 9 1/2 feet and the length is almost 14 feet. If I plug in my values
and take my length of 14 feet times the width of 9 1/2 feet I get a total of 133 square
feet. Now to convert from square footage to square yards we need to divide a total by
9, the total then is 14.77 square yards but I’m going to have to round that to a total
of 15 square yards that I have to purchase.

Comments (3)

  1. First and prob last!

  2. Ok, John, but carpet only comes in standard widths, typically 12 feet (and sometimes 14 feet, depending on the material). If you can really use the 12 foot dimension you used, then the calculations work. But if not (say the pattern runs the wrong direction), you need to assume that you need to buy a section 12 feet x 12 feet, with a wasted drop along one side. Always order a little extra to be sure!

  3. why you devide by 9
    means why 9 value

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