Boston Marriott Long Wharf — Event Spaces, Floor Plans & Capacities

296 State St, Boston, MA 02109

Boston Marriott Long Wharf gives Boston event planners 22 spaces to work with across 30,833 sq ft2,864 m² of function space. The largest room, Grand Ballroom, hosts up to 850 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

Across its 22 spaces, Boston Marriott Long Wharf handles theater-style sessions for up to 850, seated banquets for 480 and standing receptions for 850. 13 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

Plan your event in this space — free

Floor plans

Detailed floor plans for Boston Marriott Long Wharf are published on the venue’s official site.

View official floor plans at Marriott ↗Plan your event in this space — free

Work at Boston Marriott Long Wharf? to publish your official floor plans and 360° tours here — free.

Room capacities & dimensions

Room capacities and dimensions for Boston Marriott Long Wharf
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
BeaconPlan this room →506 sq ft47 m²8.6 ft2.6 m305024502020
Commonwealth BallroomPlan this room →2,530 sq ft235 m²9 ft2.7 m150180114180——
ConstitutionPlan this room →506 sq ft47 m²8.6 ft2.6 m305024502020
FaneuilPlan this room →506 sq ft47 m²8.8 ft2.7 m305024502020
Grand BallroomPlan this room →8,200 sq ft762 m²13.8 ft4.2 m480850468850——
Harbor View BallroomPlan this room →3,612 sq ft336 m²—1502001162003842
Harbor View Ballroom Outdoor TerracePlan this room →—————140——
HaymarketPlan this room →506 sq ft47 m²8.8 ft2.7 m305024502020
Palm GardenPlan this room →5,757 sq ft535 m²50 ft15.2 m360200—480——
QuincyPlan this room →506 sq ft47 m²8.8 ft2.7 m305024502020
Salon APlan this room →1,025 sq ft95 m²13.8 ft4.2 m607044823033
Salon BPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon CPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon DPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon EPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon FPlan this room →1,025 sq ft95 m²13.7 ft4.2 m607050753235
Salon GPlan this room →1,025 sq ft95 m²13.8 ft4.2 m607044823033
Salon HPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon IPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon JPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon KPlan this room →513 sq ft48 m²13.8 ft4.2 m304024502018
Salon LPlan this room →1,025 sq ft95 m²13.9 ft4.2 m607050753236

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.

Frequently asked questions

How many event spaces does Boston Marriott Long Wharf have?
Boston Marriott Long Wharf has 22 event spaces totaling 30,833 sq ft.
What is the largest event space at Boston Marriott Long Wharf?
The largest event space at Boston Marriott Long Wharf is Grand Ballroom, which holds up to 850 guests across 8,200 sq ft.
What is the banquet capacity of Grand Ballroom at Boston Marriott Long Wharf?
Grand Ballroom seats up to 480 guests in a banquet layout.
How many people fit in Grand Ballroom theater-style?
Grand Ballroom holds up to 850 guests in a theater setup.
What are the dimensions of Grand Ballroom?
Grand Ballroom measures 100 × 82 ft (8,200 sq ft) with 13.8 ft ceilings.

More event venues near Boston

Other event venues in Boston, MA

Event venues elsewhere in Massachusetts

Venues with similar capacity (~850 guests)