If the umbrella in the center of your outdoor table is preventing you from using your favorite tablecloth, this project will solve your dilemma.
Martha Stewart Living Television
Measure the diameter of the umbrella hole in your table. (This will determine the project's other measurements.)
To find the center of the tablecloth, fold it in half, then fold it in half again. Pin the corner.
To create the circle at the center of the tablecloth, use a compass to draw one-quarter of the circle, 1/4 inch smaller than the diameter of your table's hole (this will include a 1/4-inch seam allowance). Cut out the circle.
Using a compass, draw a circle that is the same size as the hole in the tablecloth on a sheet of interfacing. Using the same center point, draw another circle on the interfacing that's 2 inches larger all the way around. Cut out the larger circle with pinking shears. Cut out the inside circle with scissors.
Unfold the tablecloth, right side up. Center the doughnut-shaped piece of interfacing on the tablecloth's hole, shiny side up. Pin together.
Machine-sew the tablecloth and interfacing together, 1/4 inch in from the hole's edge to accommodate seam allowance. Using scissors, create small slits along the seam allowance, being careful not to cut the seam.
Turn interfacing to the wrong side of the tablecloth by pushing it through the hole. Using an iron, carefully press the facing flat, fusing it to the tablecloth so that it is smooth and flat.