Foam ready to be glued to the seats with spray adhesive.
Seats are cut to a pattern, allowing 1/8” gap around back legs. Edges are rounded over at the router table.
Threaded inserts are located, and I used #8 machine bolts attach the seats.
Leather hides.
Foam overhangs the seat by 1/2” in all directions. This helps to pad the side of the seat. Next wrap with high loft dacron, and compress the foam moderately(not shown). Staple the dacron (polyester batting) at bottom edge. Keep the staples close to the edge to avoid excess bulk in the padding.
Leather installed with staple gun.
Under fabric cleans things up. I cut slots to expose the threaded inserts.
There is a fair amount of tension on the leather, which helps give the cushion a taught, rounded look.
Corners are pleat-free using a dog-ear technique as described by the Upholstery Studio series on youtube.
One done, seven to go!