A+D Blog

3 Steps to Choosing the Right Refuse Sack

Posted by Matt Besley on 07-12-2017

Clear Sack Image.jpg

Confused by the technical jargon or buying refuse sacks, or are you buying a sack which is too strong for your application?  This 3 step-guide helps to simplify the jargon to help you chose the right type, size and thickness.

Step 1 - Choose the type required

Where is the waste going to end up? 

  • If it is going to compost, you will need a compostable sack.  
  • If it is going to landfill:

Step 2 - Calculate the size you need

To calculate which size refuse sack is needed for your bin just use these simple formulas. Round Bin Width of sack= Radius of bin x π (3.14) Length of sack= Length of bin + approx. 15cm for overhang and tying Length Radius Rectangular/Square bin Width of sack= width + depth of bin Length of sack= Height of bin + approx. 15cm  for overhang and tying

How does the sizing work on a sack

Sack Size.jpg

A lot of bin liners are shown as three sizes i.e. 18x29x39” 

This is how it works:

  • The first measurement i.e. the 18 is the bottom gusset of the bag, useful if this is approximately the diameter of a round bin or width of a square bin. 
  • The second measurement, i.e. the 29 is the top measurement of the sack, double this makes the circumference of your bin top 
  • The third measurement is the length of the sack from bottom to top!  This is where you need the extra to tie or fold over on your bin or sack holder!

Step 3 - Choose your Thickness

Sack Weights.jpg

Not necessarily, so this is where testing comes in.  CHSA have devised a scheme to make it easier to understand.  Previously it was gauge or micron thickness.  Another method is to check the weight of your sacks

Consider what kind content will go in the sack. For example if you know you are going to have heavy refuse then you will need a strong, durable sack, so you will need a 20 kg sack. If it will be used just for paper or other light weight items, you only need a 5 kg sack.

Here are some general examples:

  • 5kg - Paper/General Office Waste
  • 10 kg - Domestic Refuse and Recycling
  • 15 kg - Catering Food Waste
  • 20 kg - Industrial Waste

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