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Zipper Sizes

Zippers are always measured from “component to component” (end stops), regardless of zipper style. The illustrations below will assist you in determining the proper method for arriving at the desired zipper length.

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Zippers are always measured from “component to component” (end stops), regardless of zipper style. The illustrations below will assist you in determining the proper method for arriving at the desired zipper length.

Zipper Size

Zipper Size: Zipper size is the double chain width of the zipper and is measured in millimetres. Most of the manufacturers have assigned codes to designate the elements or teeth width for example #2 is 3.90-4.05mm. These codes are typically available in #2 to #10 range.

Type#2#3#4#5#8#10
Nylon3mm3mm4mm6mm7mm10mm
Plastic3mm4mm4.5mm5mm7mm8mm
Metal3.1mm4mm5mm6mm7mm8mm

How to Measure a Zipper?

Important Note: The zipper must be completely closed when taking measurements.

Zipper1

Closed-end zipper

Dimensions (A):

From the top end of the slider to the tip of the bottom stop

Dimensions of Top Tape Extensions (B):

From the top stop to the tip of notches of the cut end

Dimensions of Bottom Tape Extensions (C):

From the top stop to the to the tip of notches of the cut end


Zipper2Zipper with double sliders (arranged in the head to head relation)

Dimensions (A):

From the tip of one bottom stop to the tip of the other bottom stop

Dimensions of Top Tape Extensions (B):

From the upper bottom stop to the tip of notches of the cut end

Dimensions of Bottom Tape Extensions (C):

From the tip of the bottom stop to the tip of notches of the cut end


Zipper3
Zipper with double sliders (arranged in bottom-to-bottom relation)

Dimensions (A):

From the top end of one slider to the top end of the other slider

Dimensions of Top Tape Extensions (B):

From the top stop to the tip of notches of the cut end

Dimensions of Bottom Tape Extensions (C):

Same as the top tape extension end portion


Zipper4

Open-end zipper

Dimensions (A):

From the top end of the slider to the tip of the box

Dimensions of Top Tape Extensions (B):

From the top stop to the cut end

Zipper5

Two-way separator From the top

Dimensions (A):

From the top end of the slider to the bottom end of the supplementary tape

Dimensions of Top Tape Extensions (B):

From the top stop to the cut end


Zipper6

Top open zipper

Dimensions (A):

From the top stop to the tip of the box

Dimensions of Top Tape Extensions (B):

From the top stop to the cut end


Zipper7

Reversible slider

Dimensions (A):

Rather than from the top end, the measurement should be made from the shoulder inlet portion of the slider

Dimensions of Top Tape Extensions (B):

From the top stop to the cut end


Ziper8

When the top stop does not enter the slider

Dimensions (A):

Measurement should be made from the top stop

Dimensions of Top Tape Extensions (B):

From the top stop to the tip of notches of the cut end


Zipper Teeth/Element width usage according to fabric weight

Zipper selection depends on the type of garment and also the fabric weight is used for the particular garment. Zipper selection is based on zipper teeth or Element width as below. This is a recommendation only and not a standard.

Fabric TypeWeight RangeRecommended Teeth width range
Ultra weight85-120gsm2.5-4.0mm
Lightweight120-160gsm4.0-5.5mm
Medium weight160-240gsm5.5-7.0mm
Medium-Heavy weight240-320gsm7.0-8.5mm
Heavyweight320-410gsm8.5-12.0mm
1 Comment
  1. Icebiker3 says

    Very helpful to have all this in one place. Great!

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