Photo L
Once satisfied with the front, focus on the side panels again. Pull up
and back and staple again. This is done by eye. If it looks good, it
probably is.
You may find that the front corners need additional attention. They
may be sagging and look under-filled. This can be corrected by using a
blunt 12-inch stick to stuff cotton into the corner between the spring
edge and cover. After filling the corners to your satisfaction, and to get a
nice taut welting around the corner, use a pliers to pull on the core of
the welting, batting the corner at the same time. This little trick should
finish the corner nicely.
After you are satisfied the front welting is straight across and the
corners are filled, staple the cover to the frame every ^1 ⁄ 4 inch or so,
making any smaller adjustments as you staple.