The production and processing of wood uses much less energy than most other building materials, giving homes built from solid wood a significantly lower carbon footprint. As a rule of thumb, if you substitute one cubic metre of timber for a cubic metre of concrete, you will eliminate approximately one metric tonne (1,000kg) of carbon dioxide from being emitted into the atmosphere. Construction of a Lockwood home, rather than a conventionally-built home, can save 4 tonnes of carbon dioxide, equal to the emissions of driving 22,000km.