Seam Classification

Seam Classification

• Class 1 : Super Imposed• Class 2 : Lapped Seam• Class 3 : Bound Seam• Class 4 : Flat Seam• Class5 : Decorative Seam• Class 6 : Edge neatening• Class 7• Class 8

Super Imposed Seam

SSa

• Side seam of skirts, dress slacks, Inseam of jeans

SSb

• Finishing belt ends , attaching elastic to waist line

SSc

• Ends of waistbands on jeans

SSe

• Collars or cuffs , seamed and top stitched.

SSae

• French seam

Lapped Seam

LSa

• Leathers

LSb

• In waist band

LSc

• Side seam of dress shirts and jeans.

Lab Felled seam

• Side seam of jeans

LSe

• Attaching yokes

Bound Seam

BSa

• Edge bound with ribbon.

BSb

• T-shirt Necklines or sleeve edges with knit trim.

BSc

• Neckline or front edges bound with bias woven material.

BSj

Flat Seam

FSb

• Sweat shirt and underwear

FSc

• Lingerie and knitted garments

FSf

Class 5 : Decorative stitch

• The main use of the seam is for decorative sewing on garments where single or multiple rows are stitches are sewn through one or more layers of fabrics

Pin Tuck

• In shirts, skirts and many garments

Box Pleat

• In school uniform ( skirts )

Class 6 :Edge Neatening

EFa

• Single fold hem

EFb

Double fold hem

EFd

Edge finishing serging

EFd

Ornamental edge finishing

Class 7

• Seams in this class relate to the addition of separate items to the edge of a garment part. They are similar to the lapped seam except that the added component has a definite edge on both side.

Shirt Button hole band

• An example where the additional item is self-fabric plus interlining.

Class 8

• The final seam class in the British standard is another where only one piece of material need be involved in constructing the seam. The commonest seam type in this class is the belt loop as used on jeans.