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I tend to spend a lot of time in the Expo Hall at Greenbuild. On the Greenbuild 2009 website, the Greenbuild International Expo page says:
This year's expo hall in Phoenix boasts over 1,800 exhibit booths showcasing the latest in innovative products and services.
Were you there last year? That was 800 booths. Double that, and add some. At this writing, there are 1,057 exhibitors listed for this year; but let's assume that there will be at least the promised 1,800 by show time. Here's the expo hall schedule:
Tuesday5:30pm - 8:00pm
Wednesday9:00am - 5:30pm
Thursday9:00am - 5:30pm
The Expo is open a total of 19.5 hours — which is 1,170 minutes... or 70,200 seconds. Divide those seconds by 1,800 booths. You have 39 seconds to linger at each one. If you visit only half the booths, the time goes up to 1:18 each. Check out the video on the main Expo page, though — our own Nadav Malin in a Fortune Magazine video shot during last year's Greenbuild Expo (as previously noted here on our blog).

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1 Mark, hopefully this year the posted by Michael Wentz on 08/31/2009 at 12:46 pm

Mark, hopefully this year there's a booth sampling their human duplication machine so that you can hit the booths 10 at a time. Or maybe somebody is exhibiting a time altering device? Not sure how to claim either of those as "green" so maybe they'll just have to be booth swag...

2 Just got an email from USGBC: posted by Mark Piepkorn on 12/08/2009 at 11:25 am

Just got an email from USGBC: "Our Expo was also the largest to-date, with over 1100 exhibitors. We know there was so much to do and you may not have had enough time to do everything you wanted..." It goes on to say that there were also problems with the onsite lead retrieval system - i.e., the badge scanners - and that people can have exhibitors contact them by going to

3 You're right. This gives just posted by Mark Piepkorn on 08/31/2009 at 09:08 am

You're right. This gives just over a minute per booth.

4 As I understand it, some exhi posted by abc123 on 08/31/2009 at 08:51 am

As I understand it, some exhibitors have more than one booth space (for larger booths, etc.), so the 1800 exhibit booths and the 1057 exhibitors are not contradictory numbers.

5 This has always been the most posted by Stephen Colley on 08/31/2009 at 10:22 am

This has always been the most daunting aspect of Greenbuild, namely finding enough time to immerse in the Expo and taking advantage of the sessions. Never enough time for both, and now it's even more problematic. I know the exhibitors are totally exhausted at the end of the event, but if there were just three or four more hours in there somehow...

6 This is hilarious - wish we c posted by Kimball Office on 09/08/2009 at 06:08 pm

This is hilarious - wish we could offer a "temporary duplication service" or "time altering device," but we'll have to settle for our furniture ( and hope the hall-walking troopers spend at least 39 seconds with us! Looking forward to it either way.

7 Gosh, with only 1,057 exhibit posted by Dave Intner on 09/18/2009 at 09:47 am

Gosh, with only 1,057 exhibitors, we're up to 66 seconds per booth. Shave six seconds off of that and you might actually be able to grab lunch both days, AND hit the restroom. I sure wish they could keep the expo hall open on Friday as well.

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