GELLERMAN: Shipping containers are those big steel boxes you find at ports, rail yards, and loaded on trucks. And usually they're used for just that ? shipping. But as Living on Earth's Ingrid Lobet reports, some entrepreneurs are transforming containers into home sweet home. [FORKLIFT BEEPS] LOBET: Forklifts move exhibits into place at the EcoBuild America show in Orange County, CA. David Cross of SG Blocks stands at his exhibit, a steel box with one half converted into a living space. CROSS: What we're looking at here is a forty-foot cargo container: eight feet wide, it's nine and a half feet tall and it's forty feet long. [BANGING ON SIDE OF METAL CONTAINER] LOBET: One side of the container has been removed, and window and door openings have been cut into the sides and ends. CROSS: As you see it, a tremendous amount of material has been removed from it. It's been augmented, so now it's a structural steel building system that formerly was a cargo container. LOBET: Cross says buildings made this way can withstand 175 mile per hour winds. And the containers or 'blocks' can be stacked, cut, and integrated by an architect into various styles. In fact in several buildings SG Blocks has helped build, it's hard to discern the containers within CROSS: We're the bones of it, but what the exterior and the interior looks like is up to the architect and their clients. HINCHLIFF: What's funny these days ? it seems to be a trend towards exposing the shipping container and utilizing that as an industrial look. LOBET: That's Bill Hinchliff of ConGlobal Industries. His company partners with SG Blocks. Typically how a projects works is a homeowner or developer hears about the shipping containers, and then puts SG Blocks in contact with their architect for the design. ConGlobal does the welding and custom cutting. The contractor on site pours a foundation. Then the customized containers are delivered and welded via plates to the foundation wall. This way the bones of most buildings can be stacked in a day, making way for electricians, plumbers and drywall trades. The finished product isn't always cheaper, but can be faster and stronger than a frame building. And cross says the treated steel would hold up being underwater for several weeks, as many homes were after Hurricane Katrina. CROSS: Yes you'd still have to take your drywall off and address all that, but fundamentally your framing system behind the package is still sound. LOBET: There's also the reuse aspect. The pieces removed from the box are melted down for new steel, so all aspects of the container get a new life. Cross says he's been getting a lot of calls. CROSS: This is the old Buddy Guy musician thing, an overnight success 20 years in the making. LOBET: SG Blocks isn't the only company to consider shipping containers for homes. There's a development called Container City in the UK. And designer Jennifer Siegal, who specializes in sustainable prefabricated buildings, created a container house in Los Angeles. That also led to interest from around the country, but Siegal hit some resistance talking to local officials. SIEGAL: Most building departments around the country are not ready to accept the shipping container as a form or as a building element as of yet LOBET: Still she believes containers hold promise, as long as people use them creatively, cutting windows, stacking them, putting on different finishes. SIEGAL: Then yes, I think there is an incredible demand for low to moderate income housing, office space ? all kinds of ways in which the containers can be sewn into the fabric of the city. LOBET: Or wherever building speed, wind resistance, and the desire to reuse are priorities. For Living On Earth, I'm Ingrid Lobet in Anaheim, CA. GELLERMAN: And to see photos of homes and buildings made with shipping containers, be sure to visit our website: loe.org

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