Toys “R” Us is planning to close as many as 182 of its stores as it struggles to reorganize in bankruptcy.

The toy chain, which filed for bankruptcy in September, said in a court filing late Tuesday that the stores selected for closing had failed to meet “performance standards.”

The planned closings represent about 20 percent of Toys “R” Us stores in the United States, which span from California to New York.

As many as 4,500 workers could be affected. A spokeswoman said the company would try to find positions in other stores for as many of the displaced workers as it could. It’s unclear how many workers would be able to relocate and commute to another store farther from their homes. Terminated workers would be paid severance.