[Tom Wesenberg]

Lay the welting out on both frame rails and use tape or clothespins to hold to hold the ends. Let it set for a day or two to normalize, then mark and cut the holes. I pressed my thumb into the welting and frame holes, so it made a slight indentation, then marked the hole with a sharpy pen. I used a hole punch set and block of oak the punch the holes.

The first time I did the frame welt I just taped it and marked and punched the holes. A day or two later I found the welting needed to be pulled to make the holes line up. Seems it shrank a little after being unrolled.