Square Footage (ft2) = Side Length * Side Length
Square Yards (yd2) = Square Footage (ft2) * 0.11111
Square Meters (m2) = Square Footage (ft2) * 0.092903
Square Footage (ft2) = Length * Width
Inner Area (ft2) = Length * Width
Total Area (ft2) = (Length + (2 x Border Width)) x (Width + (2 x Border Width))
Square Footage (ft2) = Total Area - Inner Area