Green products can be certified for a range of environmentally friendly qualities such as indoor air quality, energy efficiency, sustainability and water conservation, to name a few. The number of certification programs and certified products seems to grow with each new month.

Of all the terminology used when discussing green products, sustainability might be most often misunderstood. Sustainability has been defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs; a definition created in 1987 at the World Commission on Environment and Development, a division of the United Nations.

Products that contain wood in part or in whole present an opportunity for architects and builders to add sustainable practices to their work. Choosing windows, doors, flooring, roofing, siding and framing systems that are certified as sustainable not only helps the environment, but it can be a marketing hook as well.

To measure the sustainability level of lumber, two main attributes are evaluated: harvesting and chain of custody. The harvesting process is evaluated based on how trees are planted, grown, cut down and renewed to ensure the long-term health and existence of a forest. Chain of custody tracks exactly who or which company touched a piece of lumber, tracing it back to the company that employed the person or machine that cut down the tree.

“Chain of custody is important because it guarantees a link from the product to the forest it came from,” says Kathy Abusow, president and CEO, Sustainable Forestry Initiative, a program based on the premise that responsible environmental behavior and sound business decisions can co-exist.

“People who buy and sell lumber get it from both certified and uncertified forests, so a chain of custody certification label assures the buyer the lumber came from a sustainable forest. Right now there’s a big push to let people know about sustainability by labeling lumber. In 2008 you will be seeing a lot more SFI logos on wood products,” Abusow says.

Only 10 percent of the world’s forests are certified sustainable, Abusow says, so there is plenty of concern about illegal logging and forest destruction going on in other countries. “These problems would be with those who harvest and sell lumber irresponsibly, who don’t intend to own the forest for very long. So for forest owners who will own their land for the long term, and have been practicing sustainable forestry for a long time, certification is a guarantee from an independent third party that they’re doing things right.