Co-working space provider Workbar will open new locations in three Staples office supply stores in Greater Boston next month.

The locations are in Staples’ Brighton, Danvers and Norwood stores.

The $130 monthly membership fee includes use of a single Workbar at Staples location and two days access to Workbar’s other 12 locations in Greater Boston, along with two hours of private room reservations. An introductory offer running through Sept. 30 includes 10 hours of meeting room time for $100 per month.

Workbar has been expanding in the suburbs including a 5,000-square-foot location in a former piano casing factory at 1167 Massachusetts Ave. in Arlington that opened last February.