There is an INSIDE Foot and an OUTSIDE 2 TOE Foot. Both feet have a   1/4"  GROOVE cut into their bottoms to accommodate the   5/32"   Welting.

The OUTSIDE Foot in this set has 2 TOES. For the same set with a 1 TOE OUTSIDE Foot use #S67W-1/4.

This size 1/4" is the most popular size used for all kinds of Welting Operations on Furniture and Upholstery.

This Welt Foot Set is commonly used to first make the welting by wrapping a 3/4" to 1" wide strip of fabric or vinyl or leather around 5/32" Diameter WELT. Then this welting is inserted between two pieces of furniture or auto upholstery fabric to make the actual welted seam.

Please note that the LISTED SIZE refers to the actual size of the GROOVE cut into the feet and is 3/32" LARGER than the WELT SIZE.

LISTED (GROOVE) SIZE         USES WELTING SIZE

1/8"                    1/32"
5/32                    1/16"
3/16"                   3/32"
1/4"                    5/32"
5/16"                   7/32"
3/8"                    9/32"
1/2"                    13/32"
5/8"                    17/32"
3/4"                    21/32"

This sizing chart is for REGULAR WEIGHT Upholstery Fabrics. Very Light or Very Heavy Fabics will require DIFFERENT sizing decisions.

This is the most common method of sewing welted seams in furniture or auto upholstery. This welt foot set will also sew regular seaming operations so you do not have to put your regular feet back onto the machine. Many upholstery shops just leave this set on their machines all the time!

The most common sizes of welting foot sets for auto upholstery & furniture welting are  3/16"  1/4"  and  5/16". To determine your correct LISTED SIZE, add 3/32" for your four plies of fabric to the WELT SIZE. So if you are using 5/32" welting add 3/32" for a total of 8/32" or 1/4".