Online holiday package tsunami swamping US apartment buildings

MIAMI, FL - DECEMBER 14: Shantel Hill, a City Carrier Assistant to the United States Postal Service, works to unload her mail truck after collecting mail on the busiest mailing day of the year for the U.S. Postal Service on December 14, 2015 in Miami, Florida. With 10 days to go until Christmas eve, today the postal service was expecting 612 million pieces of mail to be sent, from first class letters to priority packages. Joe Raedle/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

WASHINGTON: As the holiday shopping season peaks, US apartment complexes are being flooded with packages, from HD televisions to children's scooters, inundating lobbies and forcing building managers to take measures to extremes. 

With online shopping expected to reach a record this year, overwhelmed property managers are starting to put a cap on the size of the boxes they will accept, installing storage lockers or banning deliveries outright.