In the standard format for describing a bag:
For example: if a bag is said to be 4" x 6" x 150 gauge then the bag is 4" wide by 6" long with 150 gauge thickness and the bag will open on the 4" width.
100 gauge - a 1/1000 of an inch.
120 gauge - 'light duty' - good for protective covering.
250 gauge - 'medium duty' - good for holding light materials.
500 gauge - 'heavy duty' - where strength is required.
Most measurements are given in imperial (inches and gauge) but some of us prefer to use metric scales and the conversions are as follows:
1" = 25.4 mm
400 gauge = 100 micron
For example: a 4"x 6" x 150 gauge bag is the same as a 102mm x 152mm x 37.5 micron bag.
Some bags have a gusset at the sides to help the bag open out more and enable a greater volume of items to be put in - a good example is a refuse sack. Others have a gusset at the bottom to enable a wide product to fit in - a good example is a carrier bag.
D - Total depth
L - Length
W - Width
We very much hope this helps but if you require any help or have any questions please call 0845 200 2828 and talk to one of our experts!