Yes, the outer fabric is one fat quarter, and the lining is another. After washing and drying, the fat quarter measured about 17 1/2" X 21 1/2". So I cut a paper bag into those dimensions and manipulated til I came up with this.
This is the outer fabric. I used almost every inch of it. The only difference for the lining is that instead of making handles I used that extra fabric to make 5 squares measuring about 3"X3" to make the flower.
In case you can't read the measurements: 11 3/4" across the top, 10" across the bottom, and 10 1/4" deep. Then cut about 1" squares out of the corner
Hint: I folded the fabric in half and cut out the bag shape, NOT cutting across the bottom, so I only had to sew up two sides instead of three. Then sew the little cut out squares to form the bottom. (Just search Jordy on craftster and you'll come up with a million examples. )
I added heavy interfacing to the outer fabric, then sewed right sides together for each outer and lining fabric. Place lining inside outer fabric with right sides touching. Sandwich handles inbetween and sew around the top leaving a few inches to turn. Turn and topstitch.
Oh, I also added a layer of interfacing to the handles to make them sturdier.
I know you only asked for the dimensions, but I just kept going. I hope this is clear.
Thanks again for all the nice things everyone is saying!!!!! Craftsters are so supportive.