Set Up the Grommet Panel
At this point ironed the seam allowance and the fold-over for the grommet panels, the busk panels, and the second coutil layer for each vertical boning panel. The vertical coutil panels were each ironed to 7/8″ visible width, enough room for two 1/4″ or one 1/2″ wide bone.
Back at the sewing machine, I secured the re-enforcing twill tape for the grommet area. It’s tacked in at the top and bottom edges, near the ironed-in fold that will be the edge of the grommet panel.
Then I folded over the grommet panel and stitched down the open edge.
Create the Boning Chanels
Then I sewed the boning channels that will support the grommets. In this photo you can also see one vertical panel with its top layer stitched down.
To attach the top coutil layer (the bone casing), I centered the ironed coutil on the coutil corset foundation and stitched down the center. I kept it as even as I could, turned the corset around, and lock-stitched down the same seam. After that, I stitched boning-channel width seams to either side, again lock-stitching.
All that’s left is the busk.