Wood Volume vs Weight

reservoir logs sell wood by approximate volume (metre cubed or m3)

Weights of logs can vary within these volumes.  The weight can vary dramatically as it is affected by:

  • tree species
  • moisture content
  • wood density
  • log length
  • log shape/uniformity

We use a variety of differently sized net bags and this is made clear on the listing for the product.  Thus the packaging dictates the finished product. 

We have developed our firewood products from feedback from existing and new customers.  We endeavour to give you, the customer what you want and to exceed your expectations.

The stated volumes and weights are taken from an overall average of our products and are for guidance only.  Average weights and volumes of products may vary as may the packaging.  

Due to the restrictions of selling online being almost unanimously based upon weight, the following parameters have been applied to the quotes for delivery of logs both nationally and locally:

All 40 Litre Nets of kiln dried logs, regardless of type of wood are given a weight of 15kgs.  As per the characteristics shown above this weight may vary by 5kg either way.  

All 30 Litre Nets of kiln dried logs, regardless of type of wood are given a weight of 10kgs.  Again, this may vary depending on variables.

A popular misconception is that a "builders bag" also known as a "tonne bag" or a "bulk bag" is a cubic metre or "a tonne" of wood.

Firstly, builders bags come in many dimensions the most popular being 90cm x 90cm x 90cm = 0.729m3 (or three quarters of metres cubed).  When the logs are "loose" in this bag depending on the length this can give a stacked volume of approx half a cubic metre of stacked logs with no spaces.

This makes 12 x 40 Litre nets of logs (25cm long) the same as a builders bag and 24 the equivalent of a stacked cubic metre.