Tips for measuring flat, guesseted and reclosable bags!
Measuring for any poly or cell bag that is to be filled is important. Listed below are tips for measuring flat cello bags, gusseted cellophane bags & reclosable poly bags sold on this site.
- All poly bag measurements are inside diameter (ID).
- The first dimension stated when describing a poly bag is the width.
- Please note also that gauge is the thickness of the bag. It is not really a necessary measurement for sizing bags. Gauge is important when you are using the bags for heavy items - you may require heavy duty.
Bag Type Order of Measurement
Flat Bags: Width x Length x Gauge
Side Gusset Bags: Width x Gusset x Length x Gauge
Bottom Gusset Bags: Width x Length x Gusset x Gauge
 Measuring for Flat Bag: Width x Length
Width = Opening of bag (across the top of the bag)
Length
= Usable portion of bag (from top to bottom of the bag)
Gauge
= Film thickness, measured in mils or microns
Example
Width
= 8 inches
Length
= 5 inches
Gauge = .002 inches
Bag size is written as: 8” x 5” 2 mil
 Measuring for Side Gusseted Bags: Width x Gusset x Length
Width = Across opening of the bag (with gusset tucked in)
Gusset
= Depth or Distance across the open face of side pleat
Length
= From the opening to the bottom of the bag
Gauge
= Thickness of bag, measured in mils.
Example:
Width
= 8 inches
Gusset
= 5 inches
Length
= 10 inches
Gauge
= .002 inches
Bag size is written as: 8”x 5” x 10” 2 mil
 Measuring for a Reclosable Poly Bag: Width x Length x Gauge
Bags are measured width by length. Width is the outside dimension.
Depth is measured from the bottom of the zipper to the bottom of the
bag. Due to reinforced side seals, bag openings are approximately 1/2"
less than their listed width.
Width = Across opening of the bag (with gusset tucked in)
Length = From the opening to the bottom of the bag
Gauge
= Thickness of bag, measured in mils.
Example:
Width
= 8 inches
Length = 10 inches
Gauge
= .002 inches Bag size is written as: 8” x 10” 2 mil
Measuring a round object? Click here.
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