In its latest push to stay competitive in a changing retail landscape, Framingham-based Staples Inc. said Tuesday that it launched same-day delivery service in the United States.

The new service, dubbed “Staples Rush,” will speed office supplies to customers for a $14.99 fee. On weekdays, orders placed by 3 p.m. will be delivered by 7 p.m., the company said. Customers will be able to opt for the delivery during online checkout.

The company said the service is still in beta mode, and drivers will only make deliveries to specific areas of selected markets. The rush service is already available in parts of Boston, Dallas and Manhattan, and Staples said it will soon be available in Chicago, Houston, Los Angeles, San Francisco, and Seattle.


Staples has been under pressure to fend off Internet giants such as Amazon.com Inc., and its ambitious plan to merge with No. 2 rival Office Depot Inc. was rejected by a federal judge in May.

Amazon’s Prime service already offers same-day delivery in more than two dozen US cities, including the Boston area.

In its efforts to modernize, Staples has rolled out new co-working spaces in some stores in partnership with Workbar Inc., a Boston shared-workspace company. The relationship established co-working spaces inside select Staples where members could rent desks on a daily or monthly basis.

Megan Woolhouse can be reached at megan.woolhouse@globe.com. Follow her on Twitter @megwoolhouse.