We won't repeat the cliche about one man's trash, but the warehouse is full of the treasures the military left behind.
"I'm here because my friend has some unusual tastes convinced me to accompany him," says Lawrence Grenham, a browser.
There are odd pieces here like these antique sterilizers, a quartet of heavy duty jacks, and a grand piano. There are also several bathtubs both porcelain claw foot and steel.
"A relaxation station. Yeah a metal tub with a seat in it that looks pretty excellent," says Ted Turner, a potential buyer.
And if you're into that industrial look, there are lots of cabinets from the Presidio's Letterman Hospital.
Janet Fiore was a psychiatric nurse there in the 1990's. She's looking for a piece of her past in these salvaged items.
"It's nice to see them again, touch them, think of all the people, the memories. It brings back lots of memories," says Fiore.
The U.S. took over the Presidio from Mexico in 1846 and left in 1994. It's now a national park.
For the last several years Dave Seabury, the waste reduction coordinator, has been collecting, storing and selling off the non-historical items to keep them out of landfills. Friday's live auction will be a first.
"Sometimes you get people like me who are kind of nuts and like weird stuff. We hope we get a broad range of people buying stuff," says Seabury.
When you buy this old file cabinet, you also will get some photos that give you a peak into other people's lives.
The auction will be in a separate location with the items displayed in a power point presentation. The last chance for an up close look is on Wednesday. The money goes to the Presidio Trust to help maintain the park.
There's another preview Wednesday and the auction is Friday.