Using your base-lining fabric, cut a piece 81 inches by 59 inches. At each of the 4 corners of this fabric, cut out a 2-inch by 2-inch square (see figure), to allow the 4 bamboo side poles to remain in contact with the ground.
Cut a 3-inch by 3-inch square from the back edge of the base liner (see figure), to allow the rear bamboo pole (pole 5) to remain in contact with the ground.
Hem all sides and cutouts toward wrong side.
Following the figure, sew 2 remaining 10-inch ties (created in last step) into loops at the left side corners of base liner. These loops attach the base liner to 2 of the tipi’s side bamboo poles.
Finally, attach the base liner to one side of the tipi: Following the figure, stitch the loop-free 59-inch side of the base liner to the bottom of one 59-inch side of the base of the tipi.
Design: Trisha Olson, Out-N-In, Sausalito, CA (415/935-5929)
Resources: Bamboo poles are from Cali Bamboo (888/788-2254). Sunbrella fabric can be special-ordered at Calico Corners and Jo-Ann Fabric and Craft.