Wood is, indeed, a beautiful component of a green home as long as it is not over used or used inappropriately in places where it will deteriorate quickly in the sun. Interior wood beams and wooden stairs are perfect applications. Moreover, when the wood is obtained from sustainable forests that practice responsible, regenerative forestry (forests certified by the Forest Stewardship Council), the use of wood can become part of a truly green home. .......Take a look sometime at Home Depot....they offer a large selection of FSC wood products.