1. Divide the number of square feet by 9 to calculate the equivalent in square yards. For example, if you have 90 square feet, divide 90 by 9 to get 10 square yards. 2. Divide the
http://www.ehow.com/how_7891906_calculatesquarey...

Measure the height of the wall from floor to ceiling. Measure the width of the wall. Multiply height x width = square footage. For square yards, divide the square footage by 9.
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Knowing how to calculate square footage will come in handy when it comes time to estimate materials for that next doityourself job. You'll save time, money and extra trips to the
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You multiple the width by the length.
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