Gershel Bros (website) operates out of Philadelpha, and deals with both new and used gondola.
Pittsburgh:
Penn Fixture and Supply (website) (Restaurant equipment?)
You can also check craigslist (website) in Philadelphia, Pittsburgh, Allentown and Scanton PA.
Pennsylvania has a variety of options and nuances to consider when looking for used Gondola shelving, and they will vary a great deal depending on whether you are in the Philadelphia or Pittsburgh area.
When searching for used shelving in Philadelphia, the first consideration is proximity to giant retail markets, like Baltimore, New York and New Jersey. While you will likely start your quest by searching craigslist (website) for store closings in Philadelphia, you will want to expand this; search nearby, out of state cities for liquidations.
Check the classifieds in Baltimore and other major cities...while it's always best to avoid shipping costs, purchasing out of state can sometimes nullify your local sales tax...and Philadelphia is super-close to major retail activity. Although Philly is close to everything, the shipping costs can get high (per mile), especially coming from NYC. Harrisburg, Bethlehem, Scranton and Allentown PA will all have similiar options as Philadelphia; minor variations in travel or shipping costs will be cheap.
Pittsburgh is an altogether different environment.
You will find MANY solid dealers across the border in Ohio, then some store fixture liquidators in Michigan. You should check their dealers and also scan for liquidation sales.
