This pattern comes with a very informative booklet the construction process is the same for all 3 size variations of the "Cheri" style however the instructions are written for the Petite size bag. Approximate finished sizes are Large = 15"w 12"h x 6"d. Medium = 13" x 10"h x 5½"d Petite = 11"w x 8"h x 5"d.