While this site has participated in Doors Open Ontario in the past, it may not be part of the current season’s program. Please check the Home page for this year’s events and participating sites. For Toronto and Ottawa, check their local websites to confirm.

Chapple Building (formerly the Fort William Grain Exchange)in-person Doors Open Thunder Bay


  • In-person
  • Full wheelchair access
  • Self-guided tours available
  • Washrooms
Chapple Building (formerly the Fort William Grain Exchange)

Constructed to house the Grain Commission of Canada headquarters and sample market for trading, this building was first known as the Fort William Grain Exchange. Chapples Limited opened its magnificent department store in the building’s basement and ground levels. A retail tenant in 1913, Chapples Limited purchased the entire building in 1946. Many original building finishes are still visible today.

Contact info

101 Syndicate Avenue North (access main entrance from Justice Avenue)
Thunder Bay, Ontario


Year built: 1913
Building type:Commercial
Architect: Carl Wirth
Architectural style:Chicago School

Dates/hours open

Sep 10, 10:00am - Sep 10, 04:00pm

Saturday: 10 a.m. to 4 p.m.