From Umbrella Joan:
Our umbrella pattern works with our 48-inch umbrella frames. The step-by-step pattern also includes trouble-shooting tips for sewing and assembly. Each umbrella requires 1&1/2 yards (1.5yd) of 43-inch to 45-inch all-over-print fabric.
Stripes, plaids, and one-way designs require at least double the amount of fabric for an attractive result.