1) Pin together one of the outer fabric pieces and one of the waterproof pieces, wrong sides together. If you're not sure about the waterproof fabric, the right side is shiny and slippery and the wrong side is very slightly tacky. Do the same with the remaining two pieces.
âºâº Definition: Square foot. A square foot is by definition the area enclosed by a square with sides each 1 foot long. One square foot is equal to 0.09290304 square metres for the international, English foot. A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long.
The square foot is a unit of area used in the imperial and U.S. customary measurement systems. A square measurement is the two-dimensional derivative of a linear measure, so a square foot is defined as the area of a square with sides 1 ft in length. 1  Square Feet to Acres.  Acres to Square Feet.