Boston Marriott Long Wharf — Event Spaces, Floor Plans & Capacities
296 State St, Boston, MA 02109
22 rooms · largest space: Grand Ballroom, 8,200 sq ft762 m²
Boston Marriott Long Wharf gives Boston event planners 22 rooms to work with. The largest space is Grand Ballroom, 8,200 sq ft762 m². It holds up to 850 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.
Plan an event in Grand Ballroom: open a free to-scale layout seating 480 at round tables in its 100 × 82 ft footprint at floors.live/start — no account needed.
Across its 22 rooms, 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.
Unverified listing — compiled from Boston Marriott Long Wharf’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/massachusetts/boston/boston-marriott-long-wharf/?claim=1.
Floor plans
Detailed floor plans for Boston Marriott Long Wharf are published on the venue’s official site.
Work at Boston Marriott Long Wharf? to publish your official floor plans and 360° tours here — free.
Room capacities & dimensions
22 rooms
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape |
|---|---|---|---|---|---|---|---|---|
| BeaconPlan this room → | 506 sq ft47 m² | 8.6 ft2.6 m | 30 | 50 | 24 | 50 | 20 | 20 |
| Commonwealth BallroomPlan this room → | 2,530 sq ft235 m² | 9 ft2.7 m | 150 | 180 | 114 | 180 | — | — |
| ConstitutionPlan this room → | 506 sq ft47 m² | 8.6 ft2.6 m | 30 | 50 | 24 | 50 | 20 | 20 |
| FaneuilPlan this room → | 506 sq ft47 m² | 8.8 ft2.7 m | 30 | 50 | 24 | 50 | 20 | 20 |
| Grand BallroomPlan this room → | 8,200 sq ft762 m² | 13.8 ft4.2 m | 480 | 850 | 468 | 850 | — | — |
| Harbor View BallroomPlan this room → | 3,612 sq ft336 m² | — | 150 | 200 | 116 | 200 | 38 | 42 |
| Harbor View Ballroom Outdoor TerracePlan this room → | — | — | — | — | — | 140 | — | — |
| HaymarketPlan this room → | 506 sq ft47 m² | 8.8 ft2.7 m | 30 | 50 | 24 | 50 | 20 | 20 |
| Palm GardenPlan this room → | 5,757 sq ft535 m² | 50 ft15.2 m | 360 | 200 | — | 480 | — | — |
| QuincyPlan this room → | 506 sq ft47 m² | 8.8 ft2.7 m | 30 | 50 | 24 | 50 | 20 | 20 |
| Salon APlan this room → | 1,025 sq ft95 m² | 13.8 ft4.2 m | 60 | 70 | 44 | 82 | 30 | 33 |
| Salon BPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon CPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon DPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon EPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon FPlan this room → | 1,025 sq ft95 m² | 13.7 ft4.2 m | 60 | 70 | 50 | 75 | 32 | 35 |
| Salon GPlan this room → | 1,025 sq ft95 m² | 13.8 ft4.2 m | 60 | 70 | 44 | 82 | 30 | 33 |
| Salon HPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon IPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon JPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon KPlan this room → | 513 sq ft48 m² | 13.8 ft4.2 m | 30 | 40 | 24 | 50 | 20 | 18 |
| Salon LPlan this room → | 1,025 sq ft95 m² | 13.9 ft4.2 m | 60 | 70 | 50 | 75 | 32 | 36 |
Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.
Sizing another room? Try the event room capacity calculator or the floor plan scale converter.
Frequently asked questions
What is the floor plan of Boston Marriott Long Wharf?
Boston Marriott Long Wharf has 22 rooms. The largest space is Grand Ballroom, 8,200 sq ft (100 × 82 ft). Every room's dimensions and seating capacity by setup are listed on this page. Boston Marriott Long Wharf's own floor plans are published on its website, linked from this page.
How many event rooms does Boston Marriott Long Wharf have?
Boston Marriott Long Wharf has 22 rooms.
What is the largest space at Boston Marriott Long Wharf?
Grand Ballroom, 8,200 sq ft: 100 × 82 ft, 480 banquet / 850 theater.
How many people can Boston Marriott Long Wharf seat for a banquet?
Up to 480 in Grand Ballroom. The next largest room, Palm Garden, seats 360.
What is the ceiling height at Boston Marriott Long Wharf?
The highest ceiling is 50 ft, in Palm Garden.
More event venues near Boston
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Other event venues in Boston, MA
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Event venues elsewhere in Massachusetts
- Boston Marriott Newton · Auburndale
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- The Westin Waltham Boston · Waltham
- Marriott Boston Quincy · Quincy
- Hilton Boston/Woburn · Woburn
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- Courtyard by Marriott Boston Cambridge · Cambridge
Venues with similar capacity (~850 guests)
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