How to Measure Square Tubing Into a Square Foot
When measuring for square tubing the primary factor to keep in mind is the area occupied by the tubing itself. Calculating square footage is enough, but failure to account for the tube results in the need to cut excess tubing to fit and is a waste of time and materials. As well, since tubing generally doesn't need to cover the entire area of the square foot (as tubing usually doesn't need to be placed under the whole surface) the calculation should focus on the perimeter. Does this Spark an idea?
Instructions
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1
Measure the width of the tube. This includes the width contained within the tube and that of the tube's rim itself.
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2
Measure the length of the surface. In a square foot that length would be 12 inches.
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3
Measure the width of the surface. In a square foot the width would also be 12 inches.
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4
Subtract two times the width of the tubing from the width of the surface. Since two lengths of tubing will be running through the width of the surface, that area is already covered and therefore needs to be removed from the calculation.
For example: if the tube from rim to rim measures 1 inch, then the width of the square foot is 10 inches, since the last two are covered by the tube.
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5
Multiply both the length and adjusted width by two.
For example: in a square foot with one-inch tubing, length (12 x 2) equals 24, width (10 x 2) equals 20.
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6
Add the length and the width together.
For example: 24 +20 equals 44.
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