Firewood BTU Ratings Charts for Common Tree Species

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The firewood BTU rating charts below give a comparison between different types of common firewood species. The data for these charts was compiled from various sources with different firewood types. There is some conflicting data between different sources due to different laboratory variables. As with most BTU charts I have seen available some of the numbers may be a little off but are in the general ballpark. I have put together the best data I could find but consider the figures to be approximate.

Much of the inconsistencies are from different variables such as how much actual solid wood is assumed to be in a cord. A cord is 128 cubic feet but in any stack of wood there will be air space between the pieces. As a result a cord of wood may only have 70-90 cubic feet of actual solid wood. This varies with the size and shape of the wood and how tightly it is stacked.

BTU’s or British Thermal Units are a measure of the amount of heat energy available in any given substance.

Opinions of firewood can vary with personal preferences and individual burning needs. You are welcome to discuss this topic and share your experience and preference with firewood tree species in our forum.